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IRL3103资料

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IRL3103HEXFET® Power MOSFET

3/16/01Parameter

Typ.Max.UnitsRθJCJunction-to-Case–––1.6RθCSCase-to-Sink, Flat, Greased Surface0.50–––°C/WRθ

JAJunction-to-Ambient–––62Thermal Resistancewww.irf.com1VDSS = 30VRDS(on) = 12mΩID = 64ASDG

TO-220ABAdvanced HEXFET® Power MOSFETs from InternationalRectifier utilize advanced processing techniques to achieveextremely low on-resistance per silicon area. This benefit,combined with the fast switching speed and ruggedizeddevice design that HEXFET power MOSFETs are wellknown for, provides the designer with an extremely efficientand reliable device for use in a wide variety of applications.The TO-220 package is universally preferred for allcommercial-industrial applications at power dissipationlevels to approximately 50 watts. The low thermalresistance and low package cost of the TO-220 contributeto its wide acceptance throughout the industry.DescriptionPD - 91337

Absolute Maximum RatingsParameterMax.UnitsID @ TC = 25°CContinuous Drain Current, VGS @ 10V64ID @ TC = 100°CContinuous Drain Current, VGS @ 10V45AIDMPulsed Drain Current 󰂁220PD @TC = 25°CPower Dissipation94WLinear Derating Factor0.63W/°CVGSGate-to-Source Voltage ± 16VIARAvalanche Current󰂁34AEARRepetitive Avalanche Energy󰂁22mJdv/dtPeak Diode Recovery dv/dt 󰂃5.0V/nsTJOperating Junction and-55 to + 175TSTGStorage Temperature RangeSoldering Temperature, for 10 seconds300 (1.6mm from case )°CMounting torque, 6-32 or M3 srew10 lbf•in (1.1N•m)lAdvanced Process TechnologylUltra Low On-ResistancelDynamic dv/dt Ratingl175°C Operating TemperaturelFast SwitchinglFully Avalanche Rated元器件交易网www.cecb2b.com

IRL3103元器件交易网www.cecb2b.com

IRL3103元器件交易网www.cecb2b.com

IRL3103元器件交易网www.cecb2b.com

IRL3103元器件交易网www.cecb2b.com

IRL3103元器件交易网www.cecb2b.com

IRL3103元器件交易网www.cecb2b.com

IRL3103元器件交易网www.cecb2b.com

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IRL1004中文资料

IRL1004中文资料

IRL1004中文资料

IRL1004

HEXFET ? Power MOSFET

PD - 91702B

Parameter

Typ.

Max.

Units

R θJC Junction-to-Case

–––0.75R θCS Case-to-Sink, Flat, Greased Surface 0.50–––°C/W

R q JA

Junction-to-Ambient

––– 62

Thermal Resistance

l

Logic-Level Gate Drive

l Advanced Process Technology l Ultra Low On-Resistance l

Dynamic dv/dt Rating

l 175°C Operating Temperature l Fast Switching

l Fully Avalanche Rated Fifth Generation HEXFET ? power

MOSFETs from International Rectifier utilize advanced processing

techniques to achieve the lowest possible on-resistance per

silicon area. This benefit, combined with the fast switching speed

and ruggedized device design that HEXFET power MOSFETs are

well known for, provides the designer with an extremely efficient

and reliable device for use in a wide variety of applications.

The TO-220 package is universally preferred for all

RO3103;中文规格书,Datasheet资料

RO3103;中文规格书,Datasheet资料

E-mail: info@Page 1 of 2©2009 by RF Monolithics, Inc.

RO3103 (R) - 3/2/09Electrical Characteristics CharacteristicSymNotesMinimumTypicalMaximumUnitsCenter Frequency (+25 °C)Absolute FrequencyfC2, 3, 4, 5417.925418.075MHzTolerance from 418.000 MHz∆fC±75kHzInsertion LossIL2, 5, 61.22.0dBQuality FactorUnloaded QQU5, 6, 7830050 Ω Loaded QQL1100Temperature Stability

Turnover TemperatureTO6, 7, 8

102540°C

Turnover FrequencyfOfc + 1.3kHzFrequency Temperature CoefficientFTC0.037ppm/°C2Frequency AgingAbsolute Value during the First Year|fA|1≤10ppm/yrDC Insulation Resistance between Any Two Pins51.0MΩRF Equivalent RLC ModelMotional ResistanceRM5, 7, 915ΩMotional InductanceLM47.4µHMotional CapacitanceCM3.1fFPin 1 to Pin 2 Static CapacitanceCO5, 6, 92.4pFTransducer Static CapacitanceCP5, 6, 7, 92.1pFTest Fixture Shunt InductanceLTEST2, 761.6nHLid Symbolization (in Addition to Lot and/or Date Codes)RFM RO3103TO39-3 Case •Ideal for 418 MHz Transmitters •Very Low Series Resistance•Quartz Stability•Rugged, Hermetic, Low-Profile TO39 Case•Complies with Directive 2002/95/EC (RoHS)The RO3103 is a true one-port, surface-acoustic-wave (SAW) resonator in a low-profile TO39 case. It provides reliable, fundamental-mode, quartz frequency stabilization of fixed-frequency transmitters operating at 418.0MHz. The RO2103 is designed specifically for remote-control and wireless security transmitters operating in the United Kingdom under dTI MPT 1340 and in the USA under FCC Part 15. Absolute Maximum RatingsRatingValueUnitsCW RF Power Dissipation (See: Typical Test Circuit)+0dBmDC Voltage Between Any Two Pins (Observe ESD Precautions)±30VDCCase Temperature-40 to +85°CSoldering Temperature (10 seconds / 5 cycles maximum)260°C418.0 MHzSAW ResonatorRO3103

ir国际整流公司大功率场效应管参数3175v

ir国际整流公司大功率场效应管参数3175v

PartPart StatusPackageVBRDSS (V)VGs Max (V)Circuit

IRFB7446GActive and PreferredTO-220AB4020Discrete

IRL7486MActive and PreferredDirectFET ME4020Discrete

IRF7483MActive and PreferredDirectFET MF4020Discrete

IRFS7787Active and PreferredD2-Pak7520Discrete

IRFSL7787Active and PreferredTO-2627520Discrete

IRFB7787Active and PreferredTO-220AB7520Discrete

IRFU7740Active and PreferredI-PAK7520Discrete

IRFR7740Active and PreferredD-PAK7520Discrete

IRFS7762Active and PreferredD2-Pak7520Discrete

IRFU7746Active and PreferredI-PAK7520Discrete

IRFSL7762Active and PreferredTO-2627520Discrete

IRFR7746Active and PreferredD-PAK7520Discrete

IRFB7740Active and PreferredTO-220AB7520Discrete

IRFS7734-7PActive and PreferredD2-Pak 7-Lead7520Discrete

IRFSL7734Active and PreferredTO-2627520Discrete

IRFS7734Active and PreferredD2-Pak7520Discrete

弹力袜资料学习资料

弹力袜资料学习资料

1 医用循序减压弹力袜学习资料

由来

弹力袜并非弹力丝袜，弹力袜的全名应该叫做压力递减型弹力袜，与一般妇女穿的丝袜有着很大的区别。说到弹力袜的由来，还有一则有趣的故事。

18世纪，有一位商人因严重的静脉曲张出现下肢溃疡(俗称老烂腿)。他有一个习惯，就是每年要到当地有名的温泉去放松几个星期。当地的温泉因为泉眼比较小，只能站在里面泡浴。令他感到奇怪的是，2 每年在温泉泡了几次后，脚上的溃疡都神奇般地好了。这位商人是一个非常善于思考的人，他想知道到底是什么治愈了自己的溃疡，是温泉的水质还是其他。于是他就做了个实验:将温泉的水带回家放在浴缸里洗澡，结果溃疡没有改善，而站在自己家的浴桶里洗澡，溃疡却能够治愈。显然，溃疡的治愈与水质关系不大，而与站浴有关。商人和他的几个研究物理的朋友一推敲，明白了其中的道理:就是站在温泉里洗澡和站在浴桶里洗澡都有一个共同点，就是站立时水产生的静水压在脚底最大，由下而上逐渐递减，大腿露出水面，静水压为零。就是这种由下而上递减的压力治愈了他的溃疡。商人脚上的溃疡是老毛病了，总不能随时带着水桶做治疗吧?于是商人和纺织厂商合作发明了一种治疗用的弹力袜。该袜的特点就是下面紧上面松，穿到脚上后压力由下而上递减，踝部压力最大，小腿次之，膝上最小。

弹力袜是一双经由特殊设计，品管严格的医疗弹性袜。主要藉由其渐进式压力由脚踝处渐次向上递减，收缩小腿肌肉，以预防静脉充血，使血液回流心脏，达到预防治疗静脉曲张、下肢静脉血栓和瘦腿美体的作用。

医用循序减压弹力袜在脚踝部建立最高支撑压力，顺着腿部向上逐渐递减，在小腿肚减到最大压力值的70%-90%,在大腿处减到最大压力值的25%-45%.压力的这种递减变化可使下肢静脉血回流，有效的缓解或改善下肢静脉和静脉瓣膜所承受压力。

弹力袜有促进静脉回流的功能，适用人群： 3

1.

下肢静脉曲张术前、术后以及下肢深静脉血栓形成患者慢性期的辅助治疗。

2. 需要长时间站立或坐立的人群，如伴重体力劳动尤其需要。