Littelfuse新推专为电动汽车应用优化的500VDC SMD保险丝,提供高达1500A短路保护

新能源（单选第三部分）您的姓名： [填空题]_________________________________201,吉利帝豪 EV300 车型电池高压分配单元中不包含的部件有( )。

（）【单选题】[单选题]A．正极继电器B．负极继电器C．电流传感器D.PTC 熔断器(正确答案)202,电池作为一种化学能源，其电量会逐步衰减，请选出非其衰减的主要因素( )。

（）【单选题】 [单选题]A．存放时间B．充放电次数C．充放电深度D.驾驶习惯(正确答案)203,有大约( )mA 的电流通过人体时，就可视作是“电气事故”。

（）【单选题】 [单选题]A．3B．5(正确答案)C．10D.20204,2017 款吉利帝豪 EV300 车型动力电池包(水冷，采用3p95s 连接方式)内部共用( )个单体电池。

（）【单选题】 [单选题]A．17B． 97C．285(正确答案)D. 291205,吉利帝豪 EV300 车型动力电池包内部共用( )个电池模组。

（）【单选题】 [单选题]A．17(正确答案)B． 97C． 275D.291206,吉利帝豪 EV300 车型动力电池包内部包括电池模组、BMU、B-BOX、维修开关和( )组成。

（）【单选题】 [单选题]A．电流传感器B．PEUC．ACUD.CSC(正确答案)207,吉利帝豪 EV300 车型交流充电过程中哪个信号用来判断充电功率( )。

（）【单选题】 [单选题]A．CC 对地电阻(正确答案)B．CPC．PWM 信号D.允许充电信号208,吉利帝豪 EV300 动力电池异常状态监视报警，是( )部件来完成的。

（）【单选题】 [单选题]A．电池管理器(正确答案)B．高压配电箱C．DC-DCD.主控 UCU209,吉利帝豪 EV300 车型采用 3.3KW 交流充电桩慢充时，可测得 CC 与PE 之间电阻为( )。

（）【单选题】 [单选题]A．1.5kΩB．680Ω(正确答案)C．220ΩD.100Ω,210,2017 款吉利帝豪 EV300 车型 P CAN 的终端电阻位于( )。

PolySwitch Resettable Devices –Surface-mount Devices91•Smaller size saves board space and cost •Many product choices give engineers more design flexibility •Compatible with high-volume electronics assembly •Assists in meeting regulatory requirements •Higher voltage ratings allow use in new applications •RoHS compliant•Halogen free(refers to:Br Յ900ppm,Cl Յ900ppm,Br+Cl Յ1500ppm)•Broadest range of resettable devices available in the industry•Current ratings from 0.05to 3A•Voltage ratings from 6V computer and electronicapplications to 60V telecom applications•Agency recognition:UL,CSA,TÜV•Small footprint•Fast time-to-trip•Low resistance•Computer •Portable electronics •Multimedia Features•Game machines •T elephony and broadband •Mobile phones •Automotive•Industrial controls•Battery PolySwitch surface-mount devices are the preferredcircuit protection method for computer,consumer,multimedia,portable,and automotive electronicsapplications.In an affort to reduce the size and cost of surface-mountdevices,we introduced the miniSMD product series in1995.Subsequently,we developed the microSMD,nanoSMD,picoSMD and femtoSMD family of products.The femtoSMD series reduced the device size to a1608mm (0603mils)footprint,one twelfth the size ofthe popular miniSMD series.Recent additions to the PolySwitch surface-mount seriesinclude 3.0A miniSMD 4532mm (1812mils), 2.0AnanoSMD 3216mm (1206mils)and 0.16A femtoSMD1608mm (0603mils)devices.PolySwitch Resettable DevicesSurface-mount Devices 1010AC adapter input power use w/Zener&triac SMD250F SMD250F SMD200FBattery pack protection nanoSMDC150F miniSMDC260F miniSMDE190FCharger protection nanoSMDC050F miniSMDC110F/16nanoSMDC075FCPU/IC protection nanoSMDC110F nanoSMDC150F nanoSMDC075FData acquisition/sensor microSMD005F-microSMD005FDC input/output power≤6V nanoSMDC075F nanoSMDC150F nanoSMDC050F/13.2≤12V miniSMDC075F miniSMDC110F/16miniSMDC075FDDC nanoSMDC075F nanoSMDC110F nanoSMDC050F/13.2 Device bay system DB12,DB20miniSMDC200F miniSMDC260F miniSMDC200FDB32miniSMDC260F SMD300F miniSMDC200F Ethernet/LAN nanoSMDC050F/13.2miniSMDC110F/16nanoSMDC075FFan microSMD035F microSMD050F microSMD035FHDMI picoSMDC035S picoSMDC035S picoSMDC035SIEEE802.3af VOIP decaSMDC050F/60decaSMDC050F/60decaSMDC050F/60IEEE-1394power provider SMD100F/33SMD185F SMD100F/33alt.power provider SMD185F SMD185F SMD150F/33self-powered SMD185F SMD185F SMD150F/33LCD inverter nanoSMDC050F/13.2miniSMDC110F/16nanoSMDC075FLCD screen power nanoSMDC050F/13.2nanoSMDC050F/13.2microSMD035FLNB(Low Noise Block)SMD075F SMD075F SMD050FMotor≤6V nanoSMDC110F nanoSMDC150F microSMD075F≤13.2V miniSMDC075F miniSMDC110F/16miniSMDC075FPS/2mouse/keyboard nanoSMDC075F nanoSMDC110F nanoSMDC050F/13.2 Signal-data communication≤6V nanoSMDC075F nanoSMDC075F nanoSMDC075F≤13.2V miniSMDC050F miniSMDC075F miniSMDC020F≤30V SMD030F-2018SMD075F SMD050FSCSI nanoSMDC110F nanoSMDC150F nanoSMDC075FSIM/Smart card reader femtoSMDC010F femtoSMDC010F femtoSMDC005F Telecom-modem Digital line OC miniSMDC014F miniSMDC014F miniSMDC014F Telecom-PBX Subscriber OC miniSMDC014F miniSMDC014F miniSMDC014F Temperature sensor CPU nanoSMDC050F/13.2nanoSMDC075F nanoSMDC050F/13.2 USB Individual Port nanoSMDC075F nanoSMDC110F nanoSMDC050F/13.2 2port ganged nanoSMDC150F miniSMDC150F miniSMDC125F3port ganged miniSMDC200F miniSMDC200F miniSMDC200FNote:This list is not exhaustive.Tyco Electronics welcomes our customers’input for additional application ideas for PolySwitch resettable devices.Protection Application Additional CommentsPolySwitch Resettable Devices-Key Selection CriteriaFast Time-to-tripSmall Size Low Resistance(T emperature Protection)•The table below lists PolySwitch surface-mount devices typically used in these applications.•Specifications for the suggested PolySwitch surface-mount device part numbers can be found in this section.•Once a part has been selected,the user should evaluate and test each product for the intended application.OvercurrentOvervoltage92RoHS Compliant,ELV Compliant HF Halogen FreePolySwitch Resettable Devices –Surface-mount Devices 93RoHS Compliant,ELV Compliant HF Halogen Free 10femtoSMD picoSMD nanoSMD microSMD miniSMD midSMD SMD SMD2miniSMDE decaSMDSize mm 16082012321632254532505075558763115505050(mils)(0603)(0805)(1206)(1210)(1812)(2018)(2920)(3425)(4420)(2018)Hold Current (A)0.05015V DC /30.00Ω*——30V DC /50Ω——————0.10012V DC /8.00Ω*15V DC /11.00Ω*—30V DC /15Ω60V DC /12.70Ω—————0.120—15V DC /9.00Ω*48V DC /6.50Ω———————0.140————60V DC /6.00Ω—————0.1609V DC /4.20Ω—48V DC /5.00Ω———————0.200—9V DC /3.20Ω24V DC /3.10Ω—30V DC /3.30Ω—————0.300————30V DC /1.75Ω60V DC /2.30Ω60V DC /4.80Ω———0.350—6V DC /1.40Ω16V DC /1.35Ω6V DC /1.30Ω——————0.500——13.2V DC /0.75Ω13.2V DC /0.90Ω24V DC /1.00Ω—60V DC /1.40Ω——60V DC /1.10Ω0.750—6V DC /0.35Ω*6V DC /0.30Ω6V DC /0.40Ω13.2V DC /0.45Ω—30V DC /1.00Ω———————24V DC /0.29Ω—60V DC /1.00Ω———1.000—6V DC /0.19Ω*———15V DC /0.40Ω30V DC /0.48Ω—————————33V DC /0.41Ω———1.100——6V DC /0.20Ω6V DC /0.21Ω8V DC /0.21Ω—————————16V DC /0.18Ω—————————24V DC /0.18Ω—————1.200——————16V DC /0.34Ω———1.250————6V DC /0.14Ω—15V DC /0.25Ω———————16V DC /0.14Ω—————1.500——6V DC /0.11Ω6V DC /0.11Ω6V DC /0.11Ω15V DC /0.18Ω—15V DC /0.25Ω——————12V DC /0.11Ω——33V DC /0.23Ω——————16V DC /0.11Ω—————————24V DC /0.12Ω—————1.600————9V DC /0.10Ω——16V DC /0.15Ω——1.750———6V DC /0.08Ω——————1.850———————33V DC /0.165Ω——1.900————————16V DC /0.08Ω—2.000——6V DC /0.072Ω6V DC /0.06Ω8V DC /0.07Ω6V DC /0.10Ω—15V DC /0.125Ω——2.500———————15V DC /0.85Ω——2.600————6V DC /0.043Ω—6V DC /0.075Ω———————12V DC /0.047Ω—————————13.2V DC /0.050Ω—————————16V DC /0.050Ω—————3.000————6V DC /0.036Ω—6V DC /0.048Ω—————————15V DC /0.05Ω———*Data is preliminary10Maximum Ambient T emperaturePart Number-40°C-20°C0°C20°C25°C40°C50°C60°C70°C80°C85°C125°C femtoSMDC Series94RoHS Compliant,ELV Compliant HF Halogen FreePolySwitch Resettable Devices –Surface-mount Devices 95RoHS Compliant,ELV Compliant HF Halogen Free 10Maximum Ambient T emperaturePart Number -40°C -20°C 0°C 20°C 25°C 40°C 50°C 60°C 70°C 80°C 85°C 125°C miniSMDE SeriesSize 11550mm/4420milsA =femtoSMD /picoSMD /nanoSMD /microSMD /miniSMD /decaSMD and SMD B =miniSMDE190F C =SMDH120and SMDH16010femtoSMDC SeriesSize3216mm/1206milsnanoSMDC012F0.120.3948100.50 1.000.20 1.40 6.50S2 nanoSMDC016F0.160.4548100.50 1.000.30 1.10 5.00S2 nanoSMDC020F0.200.42241000.608.000.100.65 3.10S2 nanoSMDC035F0.350.7516200.60 3.500.100.45 1.35S2 nanoSMDC050F/13.20.50 1.1013.21000.808.000.100.200.75S2 nanoSMDC075F0.75 1.5061000.808.000.100.090.30S2 nanoSMDC110F 1.10 2.2061000.808.000.100.070.20S2 nanoSMDC150F 1.50 3.0061000.808.000.300.040.11S2Size3225mm/1210milsmicroSMD005F0.050.153010 1.000.25 1.50 3.6050.00S2 microSMD010F0.100.2530100.800.50 1.00 2.1015.00S2 microSMD035F0.350.756400.808.000.200.32 1.30S2 microSMD050F0.50 1.0013.2400.808.000.050.250.90S2 microSMD075F0.75 1.506400.808.000.100.110.40S2 microSMD110F 1.10 2.206400.808.000.200.070.21S2 microSMD150F 1.50 3.006400.808.00 1.000.040.11S2 microSMD175F 1.75 3.506400.808.000.800.0250.08S2 microSMD200F 2.00 4.0061000.808.00 2.500.0200.06S2 miniSMDC SeriesminiSMDC020F0.200.4030100.808.000.020.60 3.30S2miniSMDC075F0.75 1.5013.2100 1.008.000.200.110.45S2 miniSMDC075F/240.75 1.5024400.808.000.300.090.29S2 miniSMDC100F 1.10 2.208100 1.208.000.300.040.21S2 miniSMDC110F 1.10 2.208100 1.208.000.300.040.21S2 miniSMDC110F/16 1.10 2.20161000.808.000.300.060.18S2 miniSMDC110F/24 1.10 2.2024200.808.000.500.060.18S2 miniSMDC125F 1.25 2.5061000.808.000.400.050.14S2 miniSMDC125F/16 1.25 2.50161000.808.000.400.050.14S2 miniSMDC150F 1.50 3.0061000.808.000.500.040.11S2 miniSMDC150F/12 1.50 2.80121000.808.000.500.040.11S2 miniSMDC150F/16 1.50 2.80161000.808.000.500.040.11S2 miniSMDC150F/24 1.50 3.002420 1.008.00 1.500.040.12S2 miniSMDC160F 1.60 3.2091000.808.00 1.000.030.10S2 miniSMDC200F 2.00 4.008100 1.008.00 5.000.0200.070S2 miniSMDC260F 2.60 5.006100 1.008.00 5.000.0150.043S2 miniSMDC260F/12 2.60 5.0012100 1.008.00 5.000.0150.047S2 miniSMDC260F/13.2 2.60 5.0013.2100 1.208.00 5.000.0150.050S2 miniSMDC260F/16 2.60 5.0016100 1.208.00 5.000.0150.050S2 Part NumberI H(A)I T(A)V MAX(V DC)I MAX(A)P D MAX(W)Max.Time-to-T rip(A)(S)R MIN(Ω)R1MAX(Ω)Figure forDimensions96RoHS Compliant,ELV Compliant HF Halogen FreePolySwitch Resettable Devices –Surface-mount Devices 97RoHS Compliant,ELV Compliant HF Halogen Free 10miniSMDE SeriesSize 11550mm/4420milsminiSMDE190F 1.90 3.8016100 1.5010.00 2.000.0240.08S2midSMD SeriesSize 5050mm/2018milsSMD030F-20180.300.806020 1.50 1.50 1.500.500 2.30S3decaSMDC050F/600.55 1.106010 1.008.000.100.200 1.10S2SMD100F-2018 1.10 2.201540 1.408.000.500.1000.40S3SMD150F-2018 1.50 3.001540 1.808.00 1.000.0700.18S3SMD200F-2018 2.00 4.20640 1.508.00 3.000.0480.10S3SMD SeriesSize 7555mm/2920milsSMD030F 0.300.606010 1.70 1.50 3.00 1.200 4.800S4SMD050F 0.50 1.006010 1.70 2.50 4.000.350 1.400S4SMD075F 0.75 1.503040 1.708.000.300.350 1.000S4SMD075F/600.75 1.506010 1.708.000.300.350 1.000S4SMD100F 1.10 2.203040 1.708.000.500.1200.480S4SMD100F/33 1.10 2.203340 1.708.000.500.1200.410S4SMDH120 1.20 2.301650 2.008.00 2.000.1500.340S4SMD125F 1.25 2.501540 1.708.00 2.000.0700.250S4SMD260F 2.60 5.20640 1.708.0020.000.0250.075S4Size 8763mm/3425milsSMD150F 1.50 3.001540 1.908.00 5.000.0600.250S4SMD150F/33 1.50 3.003340 1.908.00 5.000.0800.230S4SMDH160 1.60 3.201670 2.208.0015.000.0500.150S4SMD185F 1.85 3.603340 1.508.00 5.000.0650.165S4SMD200F 2.00 4.001540 1.908.0012.000.0500.125S4SMD250F 2.50 5.001540 1.908.0025.000.0350.085S4Part Number I H (A)I T (A)V MAX (V DC )I MAX (A)P D MAX (W)Max.Time-to-T rip (A)(S)R MIN (Ω)R 1MAX (Ω)Figure forDimensions10femtoSMDC Series(0.055)(0.071)(0.013)(0.030)(0.023)(0.039)(0.004)(0.020)(0.003)——————picoSMDC SeriesnanoSMDC SeriesSize3216mm/1206milsnanoSMDC012F 3.00 3.400.62 1.00 1.37 1.800.250.750.076——————S2(0.118)(0.134)(0.024)(0.039)(0.054)(0.071)(0.010)(0.030)(0.003)——————nanoSMDC016F 3.00 3.400.62 1.00 1.37 1.800.250.750.076——————S2(0.118)(0.134)(0.024)(0.039)(0.054)(0.071)(0.010)(0.030)(0.003)——————nanoSMDC020F 3.00 3.400.580.82 1.37 1.800.250.750.076——————S2(0.118)(0.134)(0.023)(0.032)(0.054)(0.071)(0.010)(0.030)(0.003)——————nanoSMDC035F 3.00 3.400.580.82 1.37 1.800.250.750.076——————S2(0.118)(0.134)(0.023)(0.032)(0.054)(0.071)(0.010)(0.030)(0.003)——————nanoSMDC050F/13.2 3.00 3.400.500.74 1.37 1.800.250.750.076——————S2(0.118)(0.134)(0.019)(0.029)(0.054)(0.071)(0.010)(0.030)(0.003)——————nanoSMDC075F 3.00 3.400.440.68 1.37 1.800.250.750.076——————S2(0.118)(0.134)(0.017)(0.027)(0.054)(0.071)(0.010)(0.030)(0.003)——————nanoSMDC110F 3.00 3.400.280.67 1.37 1.800.250.750.076——————S2(0.118)(0.134)(0.011)(0.026)(0.054)(0.071)(0.010)(0.030)(0.003)——————nanoSMDC150F 3.00 3.400.550.89 1.37 1.800.250.750.076——————S2(0.118)(0.134)(0.033)(0.043)(0.054)(0.071)(0.010)(0.030)(0.003)——————microSMD SeriesSize3225mm/1210milsmicroSMD005F 3.0 3.430.500.85 2.35 2.800.250.750.076——————S2(0.118)(0.135)(0.019)(0.034)(0.092)(0.110)(0.010)(0.030)(0.003)——————microSMD010F 3.0 3.430.500.85 2.35 2.800.250.750.076——————S2(0.118)(0.135)(0.019)(0.034)(0.092)(0.110)(0.010)(0.030)(0.003)——————microSMD035F 3.0 3.430.380.62 2.35 2.800.250.750.076——————S2(0.118)(0.135)(0.015)(0.025)(0.092)(0.110)(0.010)(0.030)(0.003)——————microSMD050F 3.0 3.430.380.62 2.35 2.800.250.750.076——————S2(0.118)(0.135)(0.015)(0.025)(0.092)(0.110)(0.010)(0.030)(0.003)——————microSMD075F 3.0 3.430.380.62 2.35 2.800.250.750.076——————S2(0.118)(0.135)(0.015)(0.025)(0.092)(0.110)(0.010)(0.030)(0.003)——————microSMD110F 3.0 3.430.280.48 2.35 2.800.250.750.076——————S2(0.118)(0.135)(0.011)(0.019)(0.092)(0.110)(0.010)(0.030)(0.003)——————microSMD150F 3.0 3.430.51 1.22 2.35 2.800.250.750.076——————S2(0.118)(0.135)(0.020)(0.048)(0.092)(0.110)(0.010)(0.030)(0.003)——————microSMD175F 3.0 3.430.400.76 2.35 2.800.250.750.076——————S2(0.118)(0.135)(0.016)(0.030)(0.092)(0.110)(0.010)(0.030)(0.003)——————microSMD200F 3.0 3.430.79 1.17 2.35 2.800.250.750.076——————S2(0.118)(0.135)(0.031)(0.046)(0.092)(0.110)(0.010)(0.030)(0.003)——————*Data is preliminaryPart NumberAMin.Max.HMin.FigureBMin.Max.CMin.Max.DMin.Max.EMin.Max.FMin.Max.GMin.Max.98RoHS Compliant,ELV Compliant HF Halogen FreePolySwitch Resettable Devices –Surface-mount Devices 99RoHS Compliant,ELV Compliant HF Halogen Free 10miniSMDC Series(0.172)(0.186)(0.025)(0.035)(0.121)(0.134)(0.010)(0.040)(0.008)——————miniSMDC014F 4.37 4.730.6350.89 3.07 3.410.250.950.20——————S2(0.172)(0.186)(0.025)(0.035)(0.121)(0.134)(0.010)(0.040)(0.008)——————miniSMDC020F 4.37 4.730.6350.89 3.07 3.410.250.950.20S2(0.172)(0.186)(0.025)(0.035)(0.121)(0.134)(0.010)(0.040)(0.008)——————miniSMDC050F 4.37 4.730.380.62 3.07 3.410.250.950.20S2(0.172)(0.186)(0.015)(0.025)(0.121)(0.134)(0.010)(0.040)(0.008)——————miniSMDC075F 4.37 4.730.380.62 3.07 3.410.250.950.20S2(0.172)(0.186)(0.015)(0.025)(0.121)(0.134)(0.010)(0.040)(0.008)——————miniSMDC075F/24 4.37 4.830.81 1.46 3.07 3.410.250.950.20——————S2(0.172)(0.190)(0.032)(0.057)(0.121)(0.134)(0.010)(0.040)(0.008)——————miniSMDC100F 4.37 4.730.380.62 3.07 3.410.250.950.20——————S2(0.172)(0.186)(0.015)(0.025)(0.121)(0.134)(0.010)(0.040)(0.008)——————miniSMDC110F 4.37 4.730.380.62 3.07 3.410.250.950.20——————S2(0.172)(0.186)(0.015)(0.025)(0.121)(0.134)(0.010)(0.040)(0.008)——————miniSMDC110F/16 4.37 4.830.280.48 3.07 3.410.250.950.20——————S2(0.172)(0.190)(0.011)(0.019)(0.121)(0.134)(0.010)(0.040)(0.008)——————miniSMDC110F/24 4.37 4.830.81 1.46 3.07 3.410.250.950.20——————S2(0.172)(0.190)(0.032)(0.057)(0.121)(0.134)(0.010)(0.040)(0.008)——————miniSMDC125F 4.37 4.730.280.48 3.07 3.410.250.950.20——————S2(0.172)(0.186)(0.011)(0.019)(0.121)(0.134)(0.010)(0.040)(0.008)——————miniSMDC125F/16 4.37 4.830.280.48 3.07 3.410.250.950.20——————S2(0.172)(0.190)(0.011)(0.019)(0.121)(0.134)(0.010)(0.040)(0.008)——————miniSMDC150F 4.37 4.730.280.48 3.07 3.410.250.950.20——————S2(0.172)(0.186)(0.011)(0.019)(0.121)(0.134)(0.010)(0.040)(0.008)——————miniSMDC150F/12 4.37 4.830.280.48 3.07 3.410.250.950.20——————S2(0.172)(0.190)(0.011)(0.019)(0.121)(0.134)(0.010)(0.040)(0.008)——————miniSMDC150F/16 4.37 4.830.280.48 3.07 3.410.250.950.20——————S2(0.172)(0.190)(0.011)(0.019)(0.121)(0.134)(0.010)(0.040)(0.008)——————miniSMDC150F/24 4.37 4.83 1.00 1.94 3.07 3.410.250.950.20——————S2(0.172)(0.190)(0.040)(0.077)(0.121)(0.134)(0.010)(0.040)(0.008)——————miniSMDC160F 4.37 4.730.280.48 3.07 3.410.250.950.20——————S2(0.172)(0.186)(0.011)(0.019)(0.121)(0.134)(0.010)(0.040)(0.008)——————miniSMDC200F 4.37 4.730.51 1.22 3.07 3.410.250.950.20——————S2(0.172)(0.186)(0.020)(0.048)(0.121)(0.134)(0.010)(0.040)(0.008)——————miniSMDC260F 4.37 4.730.480.78 3.07 3.410.250.950.20——————S2(0.172)(0.186)(0.019)(0.031)(0.121)(0.134)(0.010)(0.040)(0.008)——————miniSMDC260F/12 4.37 4.83 1.02 1.52 3.07 3.410.250.950.20——————S2(0.172)(0.190)(0.042)(0.060)(0.121)(0.134)(0.010)(0.040)(0.008)——————miniSMDC260F/13.2 4.37 4.83 1.02 1.52 3.07 3.410.250.950.20——————S2(0.172)(0.190)(0.042)(0.060)(0.121)(0.134)(0.010)(0.040)(0.008)——————miniSMDC260F/16 4.37 4.83 1.02 1.52 3.07 3.410.250.950.20——————S2(0.172)(0.186)(0.018)(0.030)(0.121)(0.134)(0.010)(0.040)(0.008)——————miniSMDE SeriesSize 11550mm/4420milsminiSMDE190F 11.1511.510.330.53 4.83 5.330.51 1.020.381——————S2(0.439)(0.453)(0.013)(0.021)(0.190)(0.210)(0.020)(0.040)(0.015)——————Part Number A Min.Max.HMin.Figure B Min.Max.C Min.Max.D Min.Max.E Min.Max.F Min.Max.G Min.Max.10midSMD SeriesSize5050mm/2018milsSMD030F-2018 4.72 5.44— 1.78 4.22 4.930.250.360.250.360.300.46———S3(0.186)(0.214)—(0.070)(0.166)(0.194)(0.010)(0.014)(0.010)(0.014)(0.012)(0.018)———decaSMDC050F/60 4.70 5.310.630.89 4.19 4.810.250.950.25——————S2(0.185)(0.209)(0.025)(0.035)(0.165)(0.189)(0.010)(0.040)(0.010)——————SMD100F-2018 4.72 5.44— 1.52 4.22 4.930.250.360.250.360.300.46———S3(0.186)(0.214)—(0.060)(0.166)(0.194)(0.010)(0.014)(0.010)(0.014)(0.012)(0.018)———SMD150F-2018 4.72 5.44— 1.52 4.22 4.930.250.360.250.360.300.46———S3(0.186)(0.214)—(0.060)(0.166)(0.194)(0.010)(0.014)(0.010)(0.014)(0.012)(0.018)———SMD200F-2018 4.72 5.44— 1.52 4.22 4.930.250.360.250.360.300.46———S3(0.186)(0.214)—(0.060)(0.166)(0.194)(0.010)(0.014)(0.010)(0.014)(0.012)(0.018)———SMD SeriesSize7555mm/2920milsSMD030F 6.737.98— 3.18 4.80 5.440.560.710.560.71 2.16 2.410.66 1.370.43S4(0.265)(0.314)—(0.125)(0.19)(0.214)(0.022)(0.028)(0.022)(0.028)(0.085)(0.095)(0.026)(0.054)(0.017)SMD050F 6.737.98— 3.18 4.80 5.440.560.710.560.71 2.16 2.410.66 1.370.43S4(0.265)(0.314)—(0.125)(0.19)(0.214)(0.022)(0.028)(0.022)(0.028)(0.085)(0.095)(0.026)(0.054)(0.017)SMD075F 6.737.98— 3.18 4.80 5.440.560.710.560.71 2.16 2.410.66 1.370.43S4(0.265)(0.314)—(0.125)(0.19)(0.214)(0.022)(0.028)(0.022)(0.028)(0.085)(0.095)(0.026)(0.054)(0.017)SMD075F/60 6.737.98— 3.18 4.80 5.440.560.710.560.71 2.16 2.410.66 1.370.43S4(0.265)(0.314)—(0.125)(0.19)(0.214)(0.022)(0.028)(0.022)(0.028)(0.085)(0.095)(0.026)(0.054)(0.017)SMD100F 6.737.98— 3.00 4.80 5.440.560.710.560.71 2.16 2.410.66 1.370.43S4(0.265)(0.314)—(0.118)(0.19)(0.214)(0.022)(0.028)(0.022)(0.028)(0.085)(0.095)(0.026)(0.054)(0.017)SMD100F/33 6.737.98— 3.00 4.80 5.440.560.710.560.71 2.16 2.410.66 1.370.43S4(0.265)(0.314)—(0.118)(0.19)(0.214)(0.022)(0.028)(0.022)(0.028)(0.085)(0.095)(0.026)(0.054)(0.017) SMDH120 6.737.98— 3.00 4.80 5.440.560.710.560.71 2.16 2.410.66 1.370.43S4(0.265)(0.314)—(0.118)(0.19)(0.214)(0.022)(0.028)(0.022)(0.028)(0.085)(0.095)(0.026)(0.054)(0.017)SMD125F 6.737.98— 3.00 4.80 5.440.560.710.560.71 2.16 2.410.66 1.370.43S4(0.265)(0.314)—(0.118)(0.19)(0.214)(0.022)(0.028)(0.022)(0.028)(0.085)(0.095)(0.026)(0.054)(0.017)SMD260F 6.737.98— 3.00 4.80 5.440.560.710.560.71 2.16 2.410.66 1.370.43S4(0.265)(0.314)—(0.118)(0.19)(0.214)(0.022)(0.028)(0.022)(0.028)(0.085)(0.095)(0.026)(0.054)(0.017)SMD300F 6.737.98— 3.00 4.80 5.440.560.710.560.71 2.16 2.410.66 1.370.43S4(0.265)(0.314)—(0.118)(0.19)(0.214)(0.022)(0.028)(0.022)(0.028)(0.085)(0.095)(0.026)(0.054)(0.017)SMD2DevicesSize8763mm/3425milsSMD150F8.009.40— 3.00 6.00 6.710.560.710.560.71 3.68 3.940.66 1.370.43S4(0.315)(0.370)—(0.118)(0.236)(0.264)(0.022)(0.028)(0.022)(0.028)(0.145)(0.155)(0.026)(0.054)(0.017)SMD150F/338.009.40— 3.00 6.00 6.710.560.710.560.71 3.68 3.940.66 1.370.43S4(0.315)(0.370)—(0.118)(0.236)(0.264)(0.022)(0.028)(0.022)(0.028)(0.145)(0.155)(0.026)(0.054)(0.017) SMDH1608.009.40— 3.00 6.00 6.710.560.710.560.71 3.68 3.940.66 1.370.43S4(0.315)(0.370)—(0.118)(0.236)(0.264)(0.022)(0.028)(0.022)(0.028)(0.145)(0.155)(0.026)(0.054)(0.017)SMD185F8.009.40— 3.00 6.00 6.710.560.710.560.71 3.68 3.940.66 1.370.43S4(0.315)(0.370)—(0.118)(0.236)(0.264)(0.022)(0.028)(0.022)(0.028)(0.145)(0.155)(0.026)(0.054)(0.017)SMD200F8.009.40— 3.00 6.00 6.710.560.710.560.71 3.68 3.940.66 1.370.43S4(0.315)(0.370)—(0.118)(0.236)(0.264)(0.022)(0.028)(0.022)(0.028)(0.145)(0.155)(0.026)(0.054)(0.017)SMD250F8.009.40— 3.00 6.00 6.710.560.710.560.71 3.68 3.940.66 1.370.43S4(0.315)(0.370)—(0.118)(0.236)(0.264)(0.022)(0.028)(0.022)(0.028)(0.145)(0.155)(0.026)(0.054)(0.017)Part NumberAMin.Max.HMin.FigureBMin.Max.CMin.Max.DMin.Max.EMin.Max.FMin.Max.GMin.Max.100RoHS Compliant,ELV Compliant HF Halogen FreePolySwitch Resettable Devices –Surface-mount Devices101RoHS Compliant,ELV Compliant HF Halogen Free10nanoSMDCxxxFA =nanoSMDC012FB =nanoSMDC016FC =nanoSMDC020FD =nanoSMDC035FE =nanoSMDC050F/13.2F =nanoSMDC075FG =nanoSMDC110FH =nanoSMDC150FfemtoSMDCxxxFA =femtoSMDC005F*B =femtoSMDC010F*C =femtoSMDC016F*Data ispreliminarypicoSMDCxxxSA =picoSMDC010S*,picoSMDC012S*B =picoSMDC020SC =picoSMDC035SD =picoSMDC075S*E =picoSMDC100S**Data is preliminary10microSMDxxxFA=microSMD005FB=microSMD010FC=microSMD035FD=microSMD050FE=microSMD075FF=microSMD110FG=microSMD150FH=microSMD175FI=microSMD200FnanoSMDC200FA=nanoSMDC200FminiSMDCxxxF and miniSMDExxxFA=miniSMDC010F,miniSMDC014FB=miniSMDC020FC=miniSMDC050FD=miniSMDC075F,miniSMDC075F/24 E=miniSMDC100F,miniSMDC110F, miniSMDC110F/16,miniSMDC110F/24 F=miniSMDC125F,miniSMDC125F/16 G=miniSMDC150F,miniSMDC150F/12, miniSMDC150F/16,miniSMDC150F/24 H=miniSMDC160FI=miniSMDC200FJ=miniSMDE190FK=miniSMDC260F,miniSMDC260F/12, miniSMDC260F/13.2,miniSMDC260F/16102RoHS Compliant,ELV Compliant HF Halogen FreePolySwitch Resettable Devices –Surface-mount Devices103RoHS Compliant,ELV Compliant HF Halogen Free10midSMDA =SMD030F-2018B =decaSMDC050F/60C =SMD100F-2018D =SMD150F-2018E =SMD200F-2018miniSMDC300FA =miniSMDC300FminiSMDC030FA =miniSMDC030F10SMD2xxxFA=SMD150F,SMD150F/33B=SMDH160C=SMD185FD=SMD200FE=SMD250FSMDxxxFA=SMD030FB=SMD050FC=SMD075F,SMD075F/60D=SMDH120E=SMD100F,SMD100F/33F=SMD125FG=SMD260FH=SMD300F,SMD300F/15Terminal pad material100%matte tin with nickel underplateSoldering characteristics ANSI/J-STD-002Category3for femtoSMD,picoSMD,nanoSMD,microSMD and miniSMD seriesANSI/J-STD-002Category1for SMD seriesSolder heat withstand per IEC-STD68-2-20,Test Tb,Section5,Method1AFlammability resistance per IEC695-2-2Needle Flame Test for20sec.Recommended storage conditions40°C max,70%R.H.max;devices may not meet specified ratings if storage conditions are exceeded.T est T est Method Conditions Resistance ChangeStorage life Raychem PS300,Section5.3.260°C,1000hours±3%typical85°C,1000hours±5%typicalHumidity aging Raychem PS300,Section5.3.185°C,85%RH,100hours±1.2%typicalThermal shock MIL-STD-202,Method107G85°C,-40°C(20times)-33%typical125°C,-55°C(10times)-33%typicalVibration MIL-STD-883C per MIL-STD-883C No changeSolvent resistance Raychem PS300,Section5.2.2Freon No changeTrichloroethane No changeHydrocarbons No changeTable S5Physical Characteristics and Environmental Specifications for Surface-mount DevicesOperating temperature range-40°C to85°C,-40°C to125°C for SMDH120and SMDH160104RoHS Compliant,ELV Compliant HF Halogen FreePolySwitch Resettable Devices –Surface-mount Devices105RoHS Compliant,ELV Compliant HF Halogen Free10femtoSMDC SeriesSize 3216mm/1206mils nanoSMDC012F 3,00015,000P 1.60(0.063) 1.00(0.039) 2.00(0.079)UL,CSA,TÜV nanoSMDC016F 3,00015,000N 1.60(0.063) 1.00(0.039) 2.00(0.079)UL,CSA,TÜV nanoSMDC020F 3,00015,00002 1.60(0.063) 1.00(0.039) 2.00(0.079)UL,CSA,TÜV nanoSMDC035F3,00015,00003 1.60(0.063) 1.00(0.039) 2.00(0.079)UL,CSA,TÜV nanoSMDC050F/13.23,00015,000M 1.60(0.063) 1.00(0.039) 2.00(0.079)UL,CSA,TÜV nanoSMDC075F 3,00015,000L 1.60(0.063) 1.00(0.039) 2.00(0.079)UL,CSA,TÜV nanoSMDC110F 3,00015,000K 1.60(0.063) 1.00(0.039) 2.00(0.079)UL,CSA,TÜV Size 3225mm/1210mils microSMD005F 4,00020,00005 2.50(0.098) 1.00(0.039) 2.00(0.079)UL,CSA,TÜV microSMD010F 4,00020,00010 2.50(0.098) 1.00(0.039) 2.00(0.079)UL,CSA,TÜV microSMD035F 4,00020,0003 2.50(0.098) 1.00(0.039) 2.00(0.079)UL,CSA,TÜV microSMD050F 4,00020,00050 2.50(0.098) 1.00(0.039) 2.00(0.079)UL,CSA,TÜV microSMD075F 4,00020,00075 2.50(0.098) 1.00(0.039) 2.00(0.079)UL,CSA,TÜV microSMD110F 4,00020,00011 2.50(0.098) 1.00(0.039) 2.00(0.079)UL,CSA,TÜV microSMD150F 4,00020,00015 2.50(0.098) 1.00(0.039) 2.00(0.079)UL,CSA,TÜV microSMD175F 4,00020,00017 2.50(0.098) 1.00(0.039) 2.00(0.079)UL,CSA,TÜV microSMD200F 3,00015,00020 2.50(0.098) 1.00(0.039) 2.00(0.079)UL,CSA,TÜVminiSMDC SeriesminiSMDC075F 2,00010,0007 2.95(0.114) 1.68(0.066) 3.10(0.122)UL,CSA,TÜV miniSMDC075F/241,5007,500075F 24V2.95(0.114) 1.68(0.066)3.10(0.122)UL,CSA,TÜV miniSMDC100F 2,00010,0001 2.95(0.114) 1.68(0.066) 3.10(0.122)UL,CSA,TÜV miniSMDC110F 2,00010,0001 2.95(0.114) 1.68(0.066) 3.10(0.122)UL,CSA,TÜV miniSMDC110F/162,00010,000110F 16V 2.95(0.114) 1.68(0.066) 3.10(0.122)UL,CSA,TÜV miniSMDC110F/241,5007,500110F 24V2.95(0.114) 1.68(0.066)3.10(0.122)UL,CSA,TÜV miniSMDC125F 2,00010,00012 2.95(0.114) 1.68(0.066) 3.10(0.122)UL,CSA,TÜV miniSMDC125F/162,00010,000125F 16V2.95(0.114) 1.68(0.066)3.10(0.122)UL,CSA,TÜV miniSMDC150F 2,00010,00015 2.95(0.114) 1.68(0.066) 3.10(0.122)UL,CSA,TÜV miniSMDC150F/122,00010,000150F 12V 2.95(0.114) 1.68(0.066) 3.10(0.122)UL,CSA,TÜV miniSMDC150F/162,00010,00015016V 2.95(0.114) 1.68(0.066) 3.10(0.122)UL,CSA,TÜV miniSMDC150F/241,0005,000150F 24V2.95(0.114) 1.68(0.066)3.10(0.122)UL,CSA,TÜV miniSMDC160F 2,00010,00016 2.95(0.114) 1.68(0.066) 3.10(0.122)UL,CSA,TÜV miniSMDC200F 2,00010,00020 2.95(0.114) 1.68(0.066) 3.10(0.122)UL,CSA,TÜV miniSMDC260F 2,00010,000260F 2.95(0.114) 1.68(0.066) 3.10(0.122)UL,CSA,TÜV miniSMDC260F/121,5007,500260F 12V 2.95(0.114) 1.68(0.066) 3.10(0.122)UL,CSA,TÜV miniSMDC260F/13.21,5007,500260F 13V 2.95(0.114) 1.68(0.066) 3.10(0.122)UL,CSA,TÜV Part NumberT ape &Reel Quantity Standard Package Part Marking Dimension A (Nom.)Dimension B (Nom.)Dimension C (Nom.)Agency RecognitionRecommended Pad Layout Figures [mm(In.)]106RoHS Compliant,ELV Compliant HF Halogen Free10Agency Recognition for Surface-mount DevicesULFile #E74889for all surface-mount devices CSA File #CA78165for all surface-mount devicesTÜVCertificate number available upon request (certified to IEC 60730-1)miniSMDE SeriesSize 11550mm/4420mils miniSMDE190F5,00020,00019 4.75(0.187) 1.45(0.057)9.57(0.377)UL,CSA,TÜVmidSMD SeriesSize 5050mm/2018mils SMD030F-20184,00020,000A03F 4.60(0.18) 1.50(0.059) 3.40(0.134)UL,CSA,TÜV decaSMDC050F/601,0005,000050F 60V 4.32(0.17) 1.40(0.055) 3.61(0.142)UL,CSA,TÜV SMD100F-20184,00020,000A10F 4.60(0.18) 1.50(0.059) 3.40(0.134)UL,CSA,TÜV SMD150F-20184,00020,000A15F 4.60(0.18) 1.50(0.059) 3.40(0.134)UL,CSA,TÜV SMD200F-20184,00020,000A20F4.60(0.18)1.50(0.059)3.40(0.134)UL,CSA,TÜVSMD SeriesSize 7555mm/2920mils SMD030F 2,00010,000030F 3.10(0.12) 2.30(0.09) 5.10(0.201)UL,CSA,TÜV SMD050F 2,00010,000050F 3.10(0.12) 2.30(0.09) 5.10(0.201)UL,CSA,TÜV SMD075F 2,00010,000075F 3.10(0.12) 2.30(0.09) 5.10(0.201)UL,CSA,TÜV SMD075F/602,00010,000756F 3.10(0.12) 2.30(0.09) 5.10(0.201)UL,CSA,TÜV SMD100F 2,00010,000100F 3.10(0.12) 2.30(0.09) 5.10(0.201)UL,CSA,TÜV SMD100F/332,00010,000103F 3.10(0.12) 2.30(0.09) 5.10(0.201)UL,CSA,TÜV SMDH1202,00010,000H12 3.10(0.12) 2.30(0.09) 5.10(0.201)UL,CSA,TÜV SMD125F 2,00010,000125F 3.10(0.12) 2.30(0.09) 5.10(0.201)UL,CSA,TÜV SMD260F 2,00010,000260F 3.10(0.12) 2.30(0.09) 5.10(0.201)UL,CSA,TÜV SMD300F2,00010,000300F 3.10(0.12) 2.30(0.09) 5.10(0.201)UL,CSA,TÜVSize 8763mm/3425mils SMD150F 1,5007,500150F 4.60(0.18) 2.30(0.09) 6.10(0.240)UL,CSA,TÜV SMD150F/331,5007,500153F 4.60(0.18) 2.30(0.09) 6.10(0.240)UL,CSA,TÜV SMDH1601,5007,500160F 4.60(0.18) 2.30(0.09) 6.10(0.240)UL,CSA,TÜV SMD185F 1,5007,500185F 4.60(0.18) 2.30(0.09) 6.10(0.240)UL,CSA,TÜV SMD200F 1,5007,500200F 4.60(0.18) 2.30(0.09) 6.10(0.240)UL,CSA,TÜV SMD250F1,5007,500250F4.60(0.18)2.30(0.09)6.10(0.240)UL,CSA,TÜVPart NumberT ape &Reel Quantity Standard Package Part Marking Dimension A (Nom.)Dimension B (Nom.)Dimension C (Nom.)Agency RecognitionRecommended Pad Layout Figures [mm(In.)]。

© 2016 Littelfuse, Inc.Specifications are subject to change without notice. DescriptionThe Nano 2® SMF Fuse is a very small, Wire-in-Air (WIA) square shape surface mount fuse that was designed for secondary side circuit over-current protection applications. These fuses are designed for PCB using surface mount technology.Agency ApprovalsElectrical Characteristics for SeriesFeatures• Very fast-acting • Small size• Wide range of current rating available (0.062A to 20A)• Wide operating temperature range • Low temperature rerating • RoHS compliant and Halogen FreeApplications • Notebook PC • LCD/PDP TV • LCD monitor • LCD/PDP panel • LCD backlight inverter• Portable DVD player • Power supply • Networking • PC server• Cooling fan system• Storage system • Telecom system • Wireless basestation • White goods • Game console • Office Automation equipment • Battery charging circuit protection • Industrial equipmentSpecifications are subject to change without notice. Application testing is strongly recommended.Electrical Specifications by ItemNotes:- l2t calculated at 8ms.- Resistance is measured at 10% of rated current, 25ºC© 2016 Littelfuse, Inc.Specifications are subject to change without notice.Soldering Parameters© 2016 Littelfuse, Inc.Specifications are subject to change without notice.© 2016 Littelfuse, Inc.Specifications are subject to change without notice.Product CharacteristicsDimensionsPackagingPart Numbering System(.077")(.106")Recommended pad layout0451 001. M R LSERIESAMP CodeQUANTITY CodePACKAGING CodeRefer to Electrical characteristics table M = 1000 pcs N = 5000 pcsR = Tape and ReelL -RoHS Compliant & Halogen Free (Gold Plated Caps)451 = Gold / SnPb / Silver Plated Caps 453 = Silver Plated Caps NOTE: “L ” suffix applies to 451 series only- 451 series may be ordered as either “RoHS and HF” (“L ” suffix) or non-RoHS (no suffix) version.- 453 series is available only as RoHS compliant version and does not require “L ” suffix. Please do not include “L ” suffix within 453 series ordering instructions.SN-RoHS Compliant & Halogen Free (Sn-dipped Caps)。

Class II/Type 2/Type 1 CA Pluggable Multi-PoleDescriptionSurge protection devices (SPDs) provide equipment protection from transient overvoltage events lasting micro-seconds. By limiting the overvoltage to the equipment during these events, costly damage and downtime can be mitigated.The surge protection devices for the 4+0 configuration are available for 120 V to 480 V nominal voltage sub-distribution board applications.RCLegend L Line N Neutral Protective EarthRC Remote ContactsTD Thermal DisconnectionInternal ConfigurationFeatures & BenefitsModule & Base Ordering InformationCapability to clamp and withstand high-energy transients surge events and higher nominal discharge current to prevent disruption, downtime, and degradation or damage to equipment UL and VDE-IEC compliant in single part number One component can be utilized globally, reducing inventory needs and simplifying allocation of parts Interlocking tab mechanismSecures module to withstand vibration No additionalovercurrent protection devices required in UL applicationsReduces the number of components and costs required for protectionCompact footprint I ncreases panel design flexibilityVisual life indicatorQuick visual determines module replacement status to avoid loss of protectionPluggable modules Fast and simple to replace, minimizing maintenance and downtime. No tools required Thermal protection Eliminates catastrophic failureIP20 protection ratingFinger-safe design increases worker protectionPluggable RC ConnectorReplacement Module Ordering InformationDisclaimer Notice – Information furnished is believed to be accurate and reliable. However, users should independently evaluate the suitability of and test each product selected for their own applications. Littelfuse products are not designed for, and may not be used in, all applications. Read complete Disclaimer Notice at /product-disclaimer.Thermal Protection YesOperating State/Fault Indica tionGreen Flag/No Green FlagRemote Contact Switching Ca pa city AC: 250 V/1 A, 125 V/1 A;DC: 48 V/0.5 A, 24 V/0.5 A, 12 V/0.5 A Remote Contact Conductor Cross Section (max) 1.5 mm 2 (16 AWG) (Solid)Standards Passed* IEC 61643-11:2011 EN 61643-11:2012UL 1449, 4th editionProduct Dimensions 4TE Module and Base H 90.0 mm (3.54”); W 72.0 mm (2.84”);D 70.0 mm (2.76”)1TE Replacement Module H 45.0 mm (1.77”); W 18.0 mm (0.71”);D 57.2mm (2.25”)Package Dimensions 4TE Module and Base H 102.0 mm (4.01”); W 82.0 mm (3.23”);D 110.0 mm (4.33”)1TE Replacement Module H 102.0 mm (4.01”); W 28.0 mm (1.10”);D 110.0 mm (4.33”)SpecificationsNetwork Systems TN-S Mode of Protection L-PE, N-PE Nominal Discharge Current (8/20 µs) (I n ) 20 kA Maximum Discharge Current (8/20 µs) (I max ) Up to 50 kA Protective Elements High Energy MOV Response Time (t A ) < 25 ns Back-Up Fuse (max) 315 A / 250 A Gg Number of Ports 1Mechanical & Environmental Operating Temperature Range (T a ) -40 °C to +80 °C (-40 °F to +185 °F)Permissible Operating Humidity (RH) 5% to 95%Altitude (max) 4,000 m (13,123 ft)Terminal Screw Torque (M max ) 4.5 Nm (39.9 lbf-in)Conductor Cross Section (max) 35 mm² (2 AWG) (Solid, Stranded)/ 25 mm 2 (4 AWG) (Flexible)Mounting 35 mm DIN Rail, EN60715Degree of Protection IP20 (built-in)Housing Material Thermoplastic: Extinguishing Degree UL 94 V-0*SPD2-550-4P0-R and SPD2-550-M are UL Listed onlyWarranty – Visit /warranty for details.Module & Base Part Numbering SystemModule Only Part Numbering SystemSPD2 VVV MModule OnlySeriesMaximum Continuous Operating AC VoltageSPD2 VVV XPZ RModule & Base SeriesNeutralNumber of PolesMaximum Continuous Operating AC Voltage(1=yes or 0=no)。

小保险大用途――带你认识LittelfuseLittelfuse 是全球最大的电路保护器件供应商，产品涵盖三个业务部：电子、汽车以及电气，营收占比分别为50%、34%和16%。

Littelfuse 创办于1927 年，员工总数超过7000 名，2013 年销售额达创纪录的7.58 亿美元，全球拥有超过35 个销售、制造和研发中心。

谈到电路保护器件的用途，大家可能都会认为是保护电路板的，但实际上电路保护器件最重要的功能是保护人身财产安全，避免过压过流引起火灾等事故。

Littelfuse 的产品所面向应用包括过流保护(短路等)、过压保护(雷击、静电等)、电力监控和继电保护(接地保护、设备保护等)、配电控制(配电室等)。

目前，主流的汽车公司、电子公司等都是Littelfuse 的客户，如图所示。

Littelfuse 的产品线是几家公司中最强的，如图所示，从保险丝到TVS 管全都有。

目前Littelfuse 按照产品线来分，电路保护仍然占66%的绝大份额，不过Littelfuse 早已意识到需要拓展多领域，因此在不同领域进行收购，包括目前占20%的电能控制业务及14%的传感器业务，都主要依靠收购完成的。

收购的公司包括：Accel、Cole Hersee、Concord、Hamlin、Pudenz、Selco、Shock- Block、Smart Glow Fuses、Startco、SymCom、Teccor、Wickmann。

汽车电子是Littelfuse 一直以来关注的重点，汽车保护单元最主要的一点就是要满足各种标准，这正是Littelfuse 所擅长的。

关于Littelfuse 汽车保险丝的历史：30 年代Littelfuse 首次推出汽车保险丝，40 年代设计出第一款用于汽车行业的集中式仪表盘下保险丝盒，1976 年推出第一款插片式ATO(Autofuse?)快熔保险丝，如今仍被视为汽车保险丝的全球标。

力特littelfuse保险丝产品体系一、力特保险丝类别：Littelfuse致力于生产最全面、最具创新性的保险丝产品系列。

保险丝包括：汽车售后市场产品，乘用车轴向型、径向型及通孔型保险丝，盒型保险丝，危险区域型保险丝，工业用电源和UL保险丝，中等电压保险丝，军用高可靠性保险丝，特种电源保险丝，表面贴装保险丝。

1.轴向型、径向型及通孔型保险丝在创新推动下，Littelfuse提供各种轴向型、径向型及通孔型保险丝以满足每位客户的需求。

包括PICO保险丝、HVAC保险丝、Micro TR3 保险丝、危险区域型保险丝等。

2.汽车售后市场产品汽车保险丝，切片保险丝，保险丝螺栓等。

3.表面贴装保险丝（1）一次性贴片保险丝：Littelfuse的表面封装保险丝可用于众多过流保护应用。

我们的优质保险丝包括扁平封装保险丝和Nano 2保险丝、薄膜贴片保险丝等。

①Nano 保险丝包括：0443，0448,0449,0451,0452,0453,0454,0455，0456,0458,0461,0462，0463，0464，0465，0470。

0485系列。

②薄膜贴片保险丝包括：0429，0430，0431，0433，0434，0435，0437，0438， 0440，0441， 0466，0467， 0468， 0469， 0494，0501等系列。

（2）自恢复保险丝Littelfuse PolySwitch聚合物和POLY-FUSE设备正温度系数(PPTC)设备提供复位过电流保护的选择,从而减少保修,服务和维修成本。

理想的情况下,频繁的过电流条件下发生或持续正常运行时间是必需的,复位ptc(PPTCs)通常用于消费电子、电力线路、电信、I / O端口,过程控制和医疗设备保护的应用程序。

ptc电阻随着温度的增加,由于增加流量增加。

旨在限制不安全的电流,同时允许安全目前的水平不变,阻力将“重置”故障时自动删除和温度返回到一个安全的水平。

新能源考试试题库含答案1、自动驾驶L1 和L2 级阶段,实现车辆对道路的高识别性、高可靠性、实时的信息交换需要解决的两个共性技术问题,即单传感器简单环境识别技术( )问题和车辆底层控制实现的可靠性问题。

A、显著性B、时效性C、传递性D、准确性答案：D2、对于间接触电可采用( )等措施。

A、电气隔离B、漏电保护装置C、布置安全电压D、切断电源答案：A3、在信息感知方面,根据信息对驾驶行为的影响和相互关系分为驾驶相关类信息和()。

A、车辆状态相关类信息B、环境相关类信息C、道路相关类信息D、非驾驶相关类信息答案：D4、燃料电池是燃料(如CO、H2、CH4 等)跟O2(或空气)反应,将化学能转化为电能的装置,电解质溶液是强碱溶液。

下列关于CH4 燃料电池的说法正确的是( )。

A、负极反应式为:CH4+10OH--8e=CO32-+7H2OB、负极反应式为:O2+2H2O+4e=4OH-C、随着放电的进行,溶液的pH 不变D、放电时溶液中的阴离子向正极移动答案：A5、实现汽车轻量化的基本原理( )。

A、保证足够的刚度、保证足够的强度、保持良好的疲劳耐久性能B、保证足够的韧性、保证足够的轻、保持良好的疲劳耐久性能C、保证足够的安全性、保证足够的弹性、保持良好的疲劳耐久性能D、以上都是答案：A6、减少车身骨架及车身钢板的( ),确保汽车在满足性能的前提下减轻自重。

A、质量B、结构C、链接D、数量答案：A7、极化指数是指( )。

A、测量开始10min 后的绝缘电阻与1min 后的绝缘电阻之间的比率B、测量开始1min 后的绝缘电阻与30s 后的绝缘电阻之间的比率C、测量开始1min 后的绝缘电阻与1min 后的绝缘电阻之间的比率D、测量开始10min 后的绝缘电阻与30s 后的绝缘电阻之间的比率答案：A8、智能网联汽车推动了车用传感器的快速发展,()目前已经成熟的应用到各量产车上,其技术相对成熟。

A、超声波雷达B、激光雷达C、毫米波雷达D、红外传感器答案：A9、新能源汽车动力电池性能指标主要有储能密度、循环寿命、充电速度、抗高低温和安全性等,其中( )和安全性最受关注,也因此磷酸铁锂电池和三元锂电池跻身主流市场,分别应用于客车市场和乘用车市场。

电动化模块单选题（1-200）1.新能源汽车动力电池性能指标主要有储能密度、循环寿命、充电速度、抗高低温和安全性等，其中（）和安全性最受关注，也因此磷酸铁锂电池和三元锂电池跻身主流市场，分别应用于客车市场和乘用车市场。

A.储能密度(正确答案)B. 循环寿命C. 充电速度D. 抗高低温2.动力蓄电池系统由一个或一个以上的蓄电池包及相应附件构成的为电动汽车整车行驶提供电能的能量储存装置。

其相应的附件有（）、高压电路、低压电路、热管理设备以及机械总成。

A.蓄电池管理系统(正确答案)B. 整车管理系统C. 电机管理系统D. 能源管理系统3.当动力电池温度超过限值时，发出报警信号的装置称为（）。

A.温度报警装置B. BMSC. 电池过热报警装置(正确答案)D. ECU4.蓄电池是将所获得的电能以（）的形式储存，并能够将其转换成电能的电化学装置，可以重复充电和放电。

A.机械能B. 化学能(正确答案)C. 动能D. 势能5.动力电池组内的电池单体之所以需要电量均衡是因为（）。

A.充电时间长短不一B. 每个电池单体的一致性不理想(正确答案)C. 放电率不均匀D. 动力电池总成内温度不均衡6.下面（）不属于超级电容储能结构的优点。

A. 自放电率低(正确答案)B. 功率密度高C. 功率密度高D. 寿命很长7.辅助电池为电动汽车（）系统供电的蓄电池。

A. 驱动B. 低压辅助(正确答案)C. 储能D. 行驶8.在动力电池系统中不能控制高压输入输出电路的高压继电器的是（）。

A. 加热继电器(正确答案)B. 总正继电器C. 预充继电器D. 总负继电器9.蓄电池管理系统监视蓄电池状态有温度、（）、荷电状态等。

A. 电压(正确答案)B. 电阻C. 电容D. 电抗10.锂离子电池是利用（）作为导电离子在阴极和阳极之间移动，通过化学能和电能相互转化实现充放电的。

A.电子B. 电荷C. 锂离子(正确答案)D. 电芯11.荷电状态 SOC是当前蓄电池中按照规定放电条件可以释放的（）占可用容量的百分比。

EVK Series/系列 (1000 Vdc, 15-600A) Electric Vehicle Fuses 新能源车用熔断器EVK series/系列 (1000 Vdc, 15-600A)2Electric Vehicle Fuses —EVK series (1000 Vdc, 15-600A)新能源车用熔断器 — EVK 系列 (1000 Vdc, 15-600A)Eaton’s Bussmann series Electric Vehicle (EV) full range fuses for the protection of high power and auxiliary electrical systems up to 1000 Vdc in ratings from 15 to 600 amps.伊顿Bussmann 系列EV 级车用熔断器可提供主回路及辅助支路系统的全范围保护，电压达到1000V 直流，电流可以从15A 到600A.Specifications /参数:• Volts / 电压: 1000 Vdc • Amps / 电流: 15-600 A• Interrupting rating / 分断能力: Max / 最大25kA• Time constant / 时间常数: 2±0.5ms• Ambient temperature / 环境温度: -40 ~ 125ºCEVK series/系列 (1000 Vdc, 15-600A)Features /性能:• Excellent design and application experiences with EV for decades, to serve the customers globally在EV 行业内，优秀的产品设计能力和长期的应用经验，服务于世界范围内众多用户• Comply with various international and field EV application standards worldwide符合世界范围及行业内多项EV 熔断器产品标准• Higher voltage rating provides overall system with moreefficient and economical solution while meeting the needs of higher voltage battery packs在满足高压直流电池系统应用的同时，提供给系统更有效且经济的产品方案• Higher interrupting rating projects high capacity batterypacks needed for vehicle long mileage and fast acceleration requirements具有更高的分断能力，适合大容量电池系统的应用，满足车辆长续航和急加速的使用要求• To help project the life of the fuse in the application, unique driving profiles and conditions can be simulated to verify proper fuse size and performance under a wide range of driving behaviors提升了熔断器在使用过程中的寿命，在各种驾驶工况条件下，根据工况条件进行模拟和计算得出合理的参数规格• Operation as low as 135% for 15A to 200A and 200% for 225A to 600A overload provides back up protection to the battery management system能够对电池系统提供135%（15A 到200A ）或200%（225A 到600A ）的低电流过载保护• More wider protection range with lower MBC and higher IR, much faster opening with low temperature rise under high fault current conditions helps assure reliable protection of circuits and components更低的最小熔断电流值MBC 和更高的最大分断电流值IR ，使得产品具有更广的电流保护范围；更快的熔断速度和较低的产品温升，使得产品在线路发生故障时能提供可靠的保护Catalog symbol / 型号:EVK10-(amp)-T bolt-on /螺栓固定EVK14-(amp)-T bolt-on /螺栓固定EVK22-(amp)-T bolt-on /螺栓固定EVK25-(amp)bolt-on /螺栓固定EVK30-(amp)bolt-on /螺栓固定EVK40-(amp)bolt-on /螺栓固定EVK50-(amp)bolt-on /螺栓固定EVK60-(amp)bolt-on /螺栓固定Basic information /基本信息:P/N / 型号Current / 电流 (A)Packing quantity/包装数量(per container/每包装)Screw / 螺栓Recommended tightening torque /推荐扭矩 (N.m)EVK10-XXX-T 15202530270M5 4.5±1EVK14-XXX-T 35405075M5 4.5±1EVK22-XXX-T 607080100M69±1EVK25-XXX 708090100195M812±1EVK30-XXX 12515017520075M812±1EVK40-XXX 22525027530085M1020±1EVK50-XXX 35040028M1020±1EVK60-XXX45050055060018M1020±1Electric Vehicle Fuses — EVK series (1000 Vdc, 15-600A)新能源车用熔断器 — EVK 系列 (1000 Vdc, 15-600A)3Agency information /相关标准信息:• Designed to / 符合标准: UL248-20 / ISO8820-8 / JASO D622• Manufactured under ITAF16949/VDA6.3 quality system for compliance with automotive requirements在 ITAF16949/VDA6.3 质量系统下制造，符合汽车标准要求• RoHS compliant 符合RoHS 要求• REACH declaration available upon request 根据需要可提供REACH 声明Packaging and installation suggestion / 包装和安装建议:Installation method diagram 安装方式图See below table and right diagram / 见下表及右图The installation surface should be flat and clean without oil stain, etc安装表面应平整、洁净、无油污等EVK series/系列 (1000 Vdc, 15-600A)Dimensions /尺寸: mmSize 系列Current Rating 额定电流(A)A B C D E F G H J EVK1435 ~ 505163.57714.3 5.58120.815.1EVK2260 ~ 8058759022.26.5916123.2EVK14 / EVK22Electric Vehicle Fuses — EVK series (1000 Vdc, 15-600A)新能源车用熔断器 — EVK 系列 (1000 Vdc, 15-600A)4EVK10EVK series/系列 (1000 Vdc, 15-600A)Size 系列Current Rating 额定电流(A)A B C D E F G H EVK2570 ~ 10072.29311025.491119 2.2EVK30125 ~ 20072.29311031911253EVK40225 ~ 30072.210012238.1111328 3.5EVK50350 ~ 40072.210012250.81113285EVK60450 ~ 60072.210012263.51113406EVK25 / EVK30 / EVK40 / EVK50 / EVK60Electric Vehicle Fuses — EVK series (1000 Vdc, 15-600A)新能源车用熔断器 — EVK 系列 (1000 Vdc, 15-600A)5EVK series/系列 (1000 Vdc, 15-600A)0.00010.0010.010.111010010001000010100100010000Prospective Current in Ampere r.m.s.V i r t u a l p r e a r c i n g T i m e (s )T -C curve / 曲线Electric vehicle auxiliary fuses /新能源车用辅助支路熔断器 — EVK10-XXX-T (1000 Vdc, 15-30A)Voltage rating电压 (V)Current rating 额定电流 In(A)Pre-arcing I 2t 弧前 I 2t 值(A 2s)Total I 2t 总I 2t 值(A 2s)Power dissipationat 1.0 I n1.0 I n (W)时功率损耗Power dissipationat 0.5 I n0.5 I n (W)时功率损耗1000Vdc15120700 2.80.6202271,200 3.70.7254802,20040.8306773,4004.91Electric Vehicle Fuses — EVK series (1000 Vdc, 15-600A)新能源车用熔断器 — EVK 系列 (1000 Vdc, 15-600A)6EVK series/系列 (1000 Vdc, 15-600A)T -C curve /曲线Electric vehicle auxiliary fuses /新能源车用辅助支路熔断器 — EVK14-XXX-T (1000 Vdc, 35-50A)Voltage rating电压 (V)Current rating 额定电流 In(A)Pre-arcing I 2t 弧前 I 2t 值(A 2s)Total I 2t 总I 2t 值(A 2s)Power dissipationat 1.0 I n1.0 I n (W)时功率损耗Power dissipationat 0.5 I n0.5 I n (W)时功率损耗1000Vdc354152,1007.5 1.9406203,0008.22501,2305,5009.22.30.00010.0010.010.111010010001000010100100010000Prospective Current in Ampere r.m.s.V i r t u a l p r e a r c i n g T i m e (s )Electric Vehicle Fuses — EVK series (1000 Vdc, 15-600A)新能源车用熔断器 — EVK 系列 (1000 Vdc, 15-600A)7EVK series/系列 (1000 Vdc, 15-600A)Voltage rating电压 (V)Current rating 额定电流 In(A)Pre-arcing I 2t 弧前 I 2t 值(A 2s)Total I 2t 总I 2t 值(A 2s)Power dissipationat 1.0 I n1.0 I n (W)时功率损耗Power dissipationat 0.5 I n0.5 I n (W)时功率损耗1000Vdc603,0009,60012.2 2.4704,68815,00013.4 2.7806,05019,40015.93.2T -C curve /曲线Electric vehicle power fuses /新能源车用主回路熔断器 —EVK22-XXX-T (1000 Vdc, 60-80A)0.00010.0010.010.111010010001000010100100010000Prospective Current in Ampere r.m.s.V i r t u a l p r e a r c i n g T i m e (s )Electric Vehicle Fuses — EVK series (1000 Vdc, 15-600A)新能源车用熔断器 — EVK 系列 (1000 Vdc, 15-600A)8EVK series/系列 (1000 Vdc, 15-600A)T -C curve /曲线Electric vehicle power fuses /新能源车用主回路熔断器 —EVK25-XXX (1000 Vdc, 70-100A)Voltage rating电压 (V)Current rating 额定电流 In(A)Pre-arcing I 2t 弧前 I 2t 值(A 2s)Total I 2t 总I 2t 值(A 2s)Power dissipationat 1.0 I n1.0 I n (W)时功率损耗Power dissipationat 0.5 I n0.5 I n (W)时功率损耗1000Vdc709083,40021.3 4.3801,3674,90024 4.8901,8616,30026.7 5.31002,4308,30029.65.90.00010.0010.010.111010010001000010100100010000Prospective Current in Ampere r.m.s.V i r t u a l p r e a r c i n g T i m e (s )Electric Vehicle Fuses — EVK series (1000 Vdc, 15-600A)新能源车用熔断器 — EVK 系列 (1000 Vdc, 15-600A)9EVK series/系列 (1000 Vdc, 15-600A)T -C curve /曲线Electric vehicle power fuses /新能源车用主回路熔断器 —EVK30-XXX (1000 Vdc, 125-200A)Voltage rating电压 (V)Current rating 额定电流 In(A)Pre-arcing I 2t 弧前 I 2t 值(A 2s)Total I 2t 总I 2t 值(A 2s)Power dissipationat 1.0 I n1.0 I n (W)时功率损耗Power dissipationat 0.5 I n0.5 I n (W)时功率损耗1000Vdc1251,6596,00033.68.4150 2.4789,00040.310.11754,42714,00042.410.62006,27221,00046.911.70.00010.0010.010.1110100100010000100100010000100000Prospective Current in Ampere r.m.s.V i r t u a l p r e a r c i n g T i m e (s )Electric Vehicle Fuses — EVK series (1000 Vdc, 15-600A)新能源车用熔断器 — EVK 系列 (1000 Vdc, 15-600A)10EVK series/系列 (1000 Vdc, 15-600A)T -C curve /曲线Electric vehicle power fuses /新能源车用主回路熔断器 — EVK40-XXX (1000 Vdc, 225-300A)Voltage rating电压 (V)Current rating 额定电流 In(A)Pre-arcing I 2t 弧前 I 2t 值(A 2s)Total I 2t 总I 2t 值(A 2s)Power dissipationat 1.0 I n1.0 I n (W)时功率损耗Power dissipationat 0.5 I n0.5 I n (W)时功率损耗1000Vdc2257,16224,00068.713.72509,03229,00078.715.727511,79635,00083.316.730015,26443,00087.117.40.00010.0010.010.1110100100010000100100010000100000Prospective Current in Ampere r.m.s.V i r t u a l p r e a r c i n g T i m e (s )Electric Vehicle Fuses — EVK series (1000 Vdc, 15-600A)新能源车用熔断器 — EVK 系列 (1000 Vdc, 15-600A)11EVK series/系列 (1000Vdc, 15-600A)Voltage rating电压 (V)Current rating 额定电流 In(A)Pre-arcing I 2t 弧前 I 2t 值(A 2s)Total I 2t 总I 2t 值(A 2s)Power dissipationat 1.0 I n1.0 I n (W)时功率损耗Power dissipationat 0.5 I n0.5 I n (W)时功率损耗1000Vdc35019,11769,00089.317.940028,64797,00096.219.2T -C curve /曲线Electric vehicle power fuses /新能源车用主回路熔断器 — EVK50-XXX (1000 Vdc, 350-400A)0.00010.0010.010.1110100100010000100100010000100000V i r t u a l p r e a r c i n g T i m e (s )-Prospective Current in Ampere r.m.s.Electric Vehicle Fuses — EVK series (1000 Vdc, 15-600A)新能源车用熔断器 — EVK 系列 (1000 Vdc, 15-600A)12EVK series/系列 (1000 Vdc, 15-600A)T -C curve /曲线Electric vehicle power fuses /新能源车用主回路熔断器 —EVK60-XXX (1000 Vdc, 450-600A)Voltage rating电压 (V)Current rating 额定电流 In(A)Pre-arcing I 2t 弧前 I 2t 值(A 2s)Total I 2t 总I 2t 值(A 2s)Power dissipationat 1.0 I n1.0 I n (W)时功率损耗Power dissipationat 0.5 I n0.5 I n (W)时功率损耗1000Vdc45032,604104,000113.128.350040,011120,000129.632.455053,268149,000139.634.960067,948177,000154.838.70.00010.0010.010.1110100100010000100100010000100000V i r t u a l p r e -a r c i n g T i m e (s )Prospective Current in Ampere r.m.s.Electric Vehicle Fuses — EVK series (1000 Vdc, 15-600A)新能源车用熔断器 — EVK 系列 (1000 Vdc, 15-600A)13EVK series/系列 (1000 Vdc, 15-600A)Electric vehicle power fuses /新能源车用主回路熔断器 — EVK series (1000 Vdc, 15-600A)Power loss curve /功率损耗曲线T emperature derating curve /温度降容曲线00.10.20.30.40.50.60.70.80.91010203040506070809100P O W E R L O S S C O R R E C T I O N F A C T O R %O FR ATED CURRENTPower loss curveElectric Vehicle Fuses — EVK series (1000 Vdc, 15-600A)新能源车用熔断器 — EVK 系列 (1000 Vdc, 15-600A)14Note:Electric Vehicle Fuses — EVK series (1000 Vdc, 15-600A)新能源车用熔断器— EVK 系列 (1000 Vdc, 15-600A)15EVK series/系列 (1000 Vdc, 15-600A)Eaton’s mission is to improve the quality of life and the environment through the use of power management technologies and services. We provide sustainable solutions that help our customers effectively manage electrical, hydraulic, and mechanical power – more safely, more efficiently, and more reliably. Eaton’s 2020 revenues were $17.9 billion, and we sell products to customers in more than 175 countries. We have approximately 94,000 employees.Eaton began operation in China more than 20 years ago. Since entering the Chinese market in 1993, Eaton’s presence has grown significantly in the country. In 2004, Eaton moved its Asia Pacific headquarters from Hong Kong to Shanghai.In the Greater China region, Eaton has nearly 9,800 employees,29 manufacturing bases and 5 R&D centers. T oday, we make most products for all of Eaton’s distinct business here.For more information about the company, visit For more information about Eaton China, visit Eaton China official social media account: Eaton_China伊顿公司致力于通过运用动力管理技术和服务来改善人类生活品质并提升环境质量。