COB面光源参数规格

◆Energy saving◆ General Linghting(节能) (普通照明)◆Long life◆ Advertisement(寿命长) (广告灯)◆The second level response speed◆Architectural Lighting(纳秒级相应速度) (建筑照明◆Environmental protection◆ Street Lamps(环保) (路灯)■Package Dimensions(外观尺寸)Notes:1. 所有尺寸以毫米（mm）为单位。

2. 公差为：±0.25mm。

3. 当实物与图片有差别时，以实物为准。

■Electrical/Optical Characteristics (At T A=25°C)(光电参数)Parameter (参数) Symbol(符号)Conditions(测试条件)Min.(最小值)Avg.(平均值)Max.(最大值)Units(单位)Forward Voltage (正向电压) V F I F=900mA 3 3.4 VColor Temperature(色温) TC/WD I F=900mA5800-6300 KLuminous Efficac (发光强度) ηI F=900mA 500 550 LMColor Rendering Index显色指数 a I F=900mA 70 %Viewing Angle [1](发光角度)2Θ1/2I F=900mA −− 120 −− Deg ■Absolute Maximum Rating(At TA=25°C)(极限参数)Parameter (参数) Symbol(符号)Ratings(数值)Units(单位)Continuous Forward Current (正向输入电流) I F 1600mAContinuous Forward Voltage(正向输入电压)I F 3.0 VPower Dissipation(功率)P D 5 W LED Junction Temperature(结点温度)T J 85 °COperating Temperature Range(工作温度) T OPR -30°CTo+65°CStorage Temperature Range(储存温度) T STG -40°CTo+70°CESD Sensitivity (抗静电能力) ESD 2000VHBM注意事项：1) 产品光电性能级别由我司自行决定，各不同级别的产品光电性能有所差异，请客户根据己方使用条件自行决定使用方法。

cob标准模组规格一、概述本标准模组规格适用于我们公司生产的COB（ChipOnBoard）标准模组，该模组广泛应用于各类电子产品中。

本规格旨在确保COB模组的品质和性能符合客户要求，同时也为用户提供一致、可靠的产品体验。

二、产品描述1.组成：COB模组主要由芯片、支架、荧光粉、胶水等组成。

2.结构：COB模组采用倒装结构，将芯片直接贴装在支架上，荧光粉与芯片通过高温固化胶水固定。

3.尺寸：COB模组尺寸根据客户需求定制，通常为5mmx5mm或8mmx8mm。

4.颜色：COB模组通常为白色，也可根据客户需求定制其他颜色。

三、规格要求1.亮度：COB模组的亮度应不低于客户要求的最低标准。

2.稳定性：COB模组在温度、湿度等环境条件下应保持稳定，无脱落、损坏等现象。

3.抗老化：COB模组应具备一定的抗老化性能，确保长时间使用不褪色。

4.安全性：COB模组应符合相关安全标准，确保用户在使用过程中不会受到伤害。

5.寿命：COB模组的寿命应不低于客户要求的最低标准。

6.包装：COB模组应按照要求进行包装，确保在运输、存储过程中不受损害。

四、生产流程1.准备阶段：根据客户需求定制尺寸和数量，并对材料进行检测。

2.贴装芯片：将芯片按照设计要求贴装在支架上。

3.固定荧光粉：将荧光粉与胶水混合后，通过高温固化将其固定在芯片上。

4.质量检测：对COB模组进行质量检测，确保符合规格要求。

5.包装发货：对合格产品进行包装，并按照约定时间发货。

五、检验标准1.外观检验：对COB模组的外观进行检查，确保无脱落、损坏等现象。

2.亮度测试：使用专业仪器对COB模组的亮度进行测试，确保符合规格要求。

3.稳定性测试：在不同温度、湿度等环境下对COB模组进行测试，确保其稳定性。

4.抗老化测试：对COB模组进行长时间老化测试，确保其抗老化性能符合要求。

5.安全性能测试：对COB模组进行安全性能测试，确保符合相关安全标准。

六、包装与运输1.包装材料：采用防震、防摔的包装材料对COB模组进行包装，确保在运输过程中不受损害。

HR系列产品描述产品概述本公司供应TOYONIA Y5K LED ，2700、3000、3500、4000、5000、6000k 110lm 38v，质量保证，欢迎咨询洽谈。

TOYONIA YOLL系列高品质COB光源产品是东洋推出在LED光源旗舰产品。

YOLL系列COB光源色彩还原能力强，产品性能稳定，灯具在照射效果出色。

TOYONIA YOLL 系列高品质COB光源产品已进入中国市场销售，为中国市场LEDD灯具光源提供优秀的技术解决方案。

产品特点1、该型号产品采用：无金线封装、高光效封装、高密度封装（1）无金线封装：更高温度承载能力，更高的物理强度，更高的可靠性。

（2）高光效封装：减少了光的损失，提升了出光效率及光照效果。

（3）高密度封装：小发光面高密集光束输出，更高的中心光强。

2、TOYONIA YOLL HR系列COB光源，在实现小LES芯片高密度同时，还具备高可靠性，高稳定性以及较高的抗冲压，抗挤压物理强度。

3、产品耐温，耐湿，耐候能力较传统COB光源均有提升。

4、可匹配小角度的反光杯与透镜，大幅提升灯具的中心光强，减少灯光散射，降低光损。

我们的优势1、TOYONIA COB采用高端覆晶结构，倒装技术。

具有高密度、可靠性高、光效高的优势2、照度高3、显指高，Ra＞80，Ra＞90，994、交期短，服务好Y5K参数：发光面：9规格：15.8*15.8mm电压：38v 电压范围：36——40v电流范围：500——900mA推荐功率：35w 功率范围：20——35w价格：Ra＞80 22元/pcsRa＞90 22.5元/pcs产品描述：本公司供应TOYONIA Y5G LED ，2700、3000、3500、4000、5000、6000k 110lm 38v，质量保证，欢迎咨询洽谈。

该型号产品采用：无金线封装、高光效封装和高密度封装（1）无金线封装：更高温度承载能力，更高的物理强度，更高的可靠性。

调焦cob面光说明书
调焦COB面光是一种用于照明应用的专业灯具，它具有以下
说明和特点：
1. 灯具类型：调焦COB面光一般采用高亮度的COB LED芯
片作为光源，结合特殊的散热设计，以确保灯具的长寿命和高效能。

2. 调焦功能：该灯具具有调焦功能，可根据不同的照明需求调整光束的角度，实现远距离和近距离照明。

3. 安装方式：调焦COB面光一般采用壁挂或吊装等安装方式，可根据具体需求选择安装位置。

4. 防护等级：该灯具一般具有IP65或以上的防护等级，适合
户外环境和潮湿环境使用。

5. 耐用性：调焦COB面光通常采用高品质的铝合金材料制造，具有耐用、抗震、抗腐蚀等特性，适合各种恶劣环境使用。

6. 安全性：该灯具采用低压直流供电，具有过流、过压、过温等多重保护措施，确保安全可靠。

7. 节能环保：调焦COB面光采用LED作为光源，具有高效节能、低碳环保等特点，可显著降低能源消耗。

8. 应用范围：调焦COB面光广泛应用于建筑物外立面照明、
广告牌照明、广场景观照明等场合，提供高亮度、高质量的照明效果。

以上是对调焦COB面光的简要说明书，具体的操作和注意事项可以进一步参考具体产品的说明书或咨询专业人士。

光因照明解析——COB平面光源知识一.COB平面光源死灯是什么原因造成的COB平面光源有多颗芯片直接丝焊在PCB基板上, 芯片与基板的电气连接用引线缝合方法实现。

COB 平面光源基板的表面层结构有绝缘层、铜箔、超高亮耐高温绝缘油墨（表面呈光亮白色），铜箔是用来布局排列（LAYOUT）混联线路。

COB平面光源死灯其核心就是电路断开，与下面几个因素有关：1、PCB基板表面层铜箔布线过程中进入粉尘颗粒，引起开路2、表面的金焊点被氧化3、表层有铝屑，没被清理干净就直接焊接4、引线被拉断5、芯片本身质量有问题因此要使COB平面光源不死灯，把上面5个细节控制好，增加COB平面光源的可靠性。

二.COB平面光源显色(CRI)指数提高跟哪些因素有关系COB平面光源显色（CRI）是指COB面光源照射物体真实颜色的呈现程度。

显色指数（RA）是光源对物体的显色能力。

目前COB平面光源提高显色指数最常用的方法是加红粉，红粉的选择关系到COB平面光源的光效及稳定性。

红粉有氮化物和硅酸盐之分，建议选用氮化物红粉（红粉如英特美、丰田合成、德盛等是比较好的选择）。

COB平面光源加氮化物红粉后，显色指数提高，但颜色会跑偏，光效会随之降低。

亮度与显指不能同时提高，提高COB平面光源显色指数关键是让红粉激发光谱宽带加宽，趋向长波方向，但亮度自然会降低。

就目前COB封装技术而言，一般能做到80~90，暖白光会低5~8个LM。

显指高于90以上，光强亮度明显会降低。

三.LED平面光源过UL安规认证采用COB封装还是MCOB封装好LED平面光源过UL安规认证一般要求耐高压2200V以上，出口日本市场要求耐高压3800V。

MCOB 平面光源是多杯多芯片集成封装结构，多杯边缘绝缘层打通，受高压就会击穿，引起断路。

而COB平面光源的基板表层具有结实的绝缘层，绝缘层的介电常数为2.0~4.0,，绝缘性能好，耐2200V以上高压的冲击。

LED平面光源能耐多高的电压与LED平面光源绝缘层的绝缘性能有关，绝缘性能与其介电常数有关。

【科普】COB光源温度分布与测量COB光源发光面温度偏高，一方面是由光源具有高光通量密度输出，荧光胶吸光转成热造成的；另一方面则是发光面的温度不适合采用热电偶进行接触测量。

COB(Chip-on-Board)封装技术因其具有热阻低、光通量密度高、色容差小、组装工序少等优势，在业内受到越来越多的关注。

COB封装技术已在IC集成电路中应用多年，但对于广大的灯具制造商和消费者，LED光源采用COB封装还是新颖的技术。

LED产品的可靠性与光源的温度密切相关，由于COB光源采用多颗芯片高密度封装，其温度分布、测量与SMD光源有明显不同。

本文将介绍COB光源的温度分布特点与其内在机理，并对常用的温度测量方法进行比较。

COB封装就是将芯片直接贴装到光源的基板上，使用时COB光源与热沉直接相连，无需进行SMT表面组装。

SMD封装则先将芯片贴装在支架上成为一个器件，使用时需将器件贴装到基板上再与热沉连接。

两者的热阻结构示意图如图1所示，相对于SMD器件，COB热阻比SMD在使用时少了支架层热阻与焊料层热阻，芯片的热量更容易传递到热沉。

图1：热阻结构示意图1、常用温度测量方法比较常用的温度传感器类型有热电偶、热电阻、红外辐射器等。

热电偶是由两条不同的金属线组成，一端结合在一起，该连接点处的温度变化会引起另外两端之间的电压变化，通过测量电压即可反推出温度。

热电阻利用材料的电阻随材料的温度变化的机理，通过间接测量电阻计算出温度。

红外传感器通过测量材料发射出的辐射能量进行温度测量，三者的主要特征如表1所示。

表1：温度测量方法对比热电偶成本低廉，在测温领域中最为广泛，探头的体积越小，对温度越灵敏，IEC60598要求热电偶探头涂上高反射材料减少光对温度测量的影响。

但如果将热电偶直接贴在发光面上进行测量，探头吸光转换成热的效果十分明显，会导致测量值偏高。

实际测量中有不少技术人员习惯用高温胶带进行探头固定，如图2所示。

这种粘接会加剧这种吸光转热效应，导致测量值严重偏高，偏差可达50℃以上。

DATA SHEETIntroduction Performance Characteristics Mechanical Dimensions Characteristic Curves ReliabilityPacking Specification PrecautionP 2P 3P 5P6P 9P 10P 11 CITILED COB SeriesCLU054-1825B81. Introduction1-1. Product Description1-2. FeaturesCITIZEN ELECTRONICS is the first COB manufacture. Our advanced knowledge and packaging technology for many years has excellent reliability and high quality of our products. CITILED COB Series covers a wide range of luminous flux from a 10W incandescent bulb to a 300W mercury lamp in general lighting sources. The element arrangement of LED package is capable of utilizing light more effectively and higher performance.The new version of Standard series increase the performance significantly from version 2. Version 3 creates more options to match your products design. (ex. High performance , Cost effective , Small Light Emitting Surface(LES))Emitted light density of the LED package is improved higher for suitable use of light-condensing products. The outline and LES size of version 3 is the same as for versions 1 and 2. Thus existing parts of 3rd parties are compatible in mechanical characteristics. Ra70 is added to the new lineup.・Mechanical Dimensions :38.0 x 38.0 x 1.4 (mm)・Package Structure :Aluminum Base Chip on Board ・Reference Assembly :M3 screw, Connector ・CRI (Ra):80Min., 70Min.・Nominal CCT :2,700K, 3,000K, 3,500K, 4,000K, 5,000K ( CRI(Ra) 80Min. )3,000K, 4,000K, 5,000K ( CRI(Ra) 70Min. )・Chromaticity Range:3-step MacAdam Ellipse, the center refers to ANSI C78.377:2011. ( CRI(Ra) 80Min. )ANSI C78.377:2011. compliant ( CRI(Ra) 70Min. )・Thermal Resistance :0.25C/W ・Maximum drive current :3000mA ・UL recognized component (E358566)・RoHS compliant・Better die arrangement for optics・Wide range of luminous flux and high efficacy・Improved lumen density compared with previous version CLU054-1825B8-273M1A2[1][2][3][4][5][1][2][3][4][5]Table 1. Product NomenclatureCLU05418252700K Min.80Product shape Die count in series Die count in parallel Nominal CCT CRI (Ra)2. Performance Characteristics2-1. Electro Optical Characteristics2-2. Absolute Maximum RatingsSymbol RatingPi 177.9*1If 3000*1If min 125Ir 1Top -30 ~ +85Tst -40 ~ +100Tc 100*2Tj140*3*1. Input power and forward current are the values when the LED is used within the range of the derating curve in this data sheet.*2. Refer to 3. Outline drawing for Tc measurement point.ParameterInput Power (W)Forward Current (mA)Minimum Current (mA)Reverse Current (mA)*3. D.C. Current : Tj = Tc + Rj-c x PiStorage Temperature (C)Case Temperature (C)Junction Temperature (C)Operating Temperature (C)( Tc=25C )Efficacy ( lm/W )Min.Typ.Min.Typ.Typ.Min.Typ.Max.CLU054-1825B8-273M1A22700K 80-12,91714,6781222,25049.253.557.00.25CLU054-1825B8-303M1A23000K 80-13,52615,3711282,25049.253.557.00.25CLU054-1825B8-353M1A23500K 80-13,87215,7641312,25049.253.557.00.25CLU054-1825B8-403M1A24000K 80-14,15616,0861342,25049.253.557.00.25CLU054-1825B8-503M1A25000K 80-14,43416,4021362,25049.253.557.00.25CLU054-1825B8-30AL7C83000K 70-14,47216,4451372,25049.253.557.00.25CLU054-1825B8-40AL7C84000K 70-15,14817,2131432,25049.253.557.00.25CLU054-1825B8-50AL7C85000K70-15,33317,4231452,25049.253.557.00.25Notes :1. Citizen Electronics maintains forward voltage +/-3%, luminous flux +/-10%, chromaticity ( x, y ) +/-0.005 and Ra +/-1.Product cord Voltage ( V )ForwardCurrent( mA )Thermal Resistance Rj-c( C/W )CRI (Ra)Luminous flux ( lm )NominalCCT2-3. Chromaticity CharacteristicsNote : Citizen Electronics maintains forward voltage +/-3%, luminous flux +/-10%, chromaticity ( x, y ) +/-0.005 and Ra +/-1.0.300.350.400.450.300.350.400.450.50yxx-y chart CIE19314,000K3,500K3,000K2,700K5,000KBlack Body LocusANSI 3-step2700K ( 0.4577, 0.4098)3000K( 0.4339, 0.4032)3500K ( 0.4078, 0.3929)4000K ( 0.3818, 0.3796)5000K ( 0.3446, 0.3551)3000K( 0.4339, 0.4032)4000K ( 0.3818, 0.3796)5000K( 0.3446, 0.3551)* Color region stay within MacAdam 3-step ellipse from the chromaticity center.* The chromaticity center refers to ANSI C78.377:2011. Please refer to ANSI C78. 377 for the chromaticity center.* θ is the angle between the major axis of the ellipse and the x-axis, and a and b are the major and minor semi-axes of an ellipse.(Ref. IEC 60081:1997 AnnexD)0.37080.35500.37520.33750.36190.33660.33720.35140.3480ANSI C78. 377:20110.38200.43730.38920.35830.38950.45610.42590.43020.41710.41490.40030.40340.37370.38790.3671Color RegionNominal CCT Center Point ( x, y )ANSI parametera ( x, y )b ( x, y )c ( x, y )d ( x, y )3-step MacAdam ellipse0.007740.0041157.280.008340.0040853.170.009510.0041752.970.009390.0040254.000.008220.0035459.62( Rated current, Tc=25C )Color RegionNominal CCT Center Point ( x, y )Oval parameterMajor Axisa Minor Axisb E llipse Rotation Angleθ3. Mechanical Dimensions Figure 1. Outline drawing - MarkingMarking 1 : Serial No.Marking 2 : B 18 25 ** **CRICCTDies count in parallelDies count in seriesForward Current vs. Forward VoltageForward Current vs. Relative Luminous FluxTc=25C Tc=25CCase Temperature vs. Forward VoltageCase Temperature vs. Relative Luminous FluxIf=2250mA If=2250mA30.035.040.045.050.055.060.00500100015002000250030003500V f [V ]If [mA]0%20%40%60%80%100%120%140%0500100015002000250030003500R e l a t i v e L u m i n o u s F l u x [a .u .]If [mA]50.051.052.053.054.055.00255075100V f [V ]Tc [C]0%20%40%60%80%100%120%0255075100R e l a t i v e L u m i n o u s F l u x [a .u .]Tc [C]4. Characteristic Curves4-1. Forward Current Characteristics / Temperature Characteristics4-2. Optical CharacteristicsSpectrum : CRI(Ra) 80Min.0%10%20%30%40%50%60%70%80%90%100%380430480530580630680730780R a d i a t i v e I n t e n s i t yWave length [nm]5000K4000K3500K3000K2700KTc=25℃If=2250mASpectrum : CRI(Ra) 70Min.0%10%20%30%40%50%60%70%80%90%100%380430480530580630680730780R a d i a t i v e I n t e n s i t yWave length [nm]5000K4000K3000KTc=25℃If=2250mA4-2. Optical Characteristics (continued)4-3. Derating CharacteristicsCase Temperaturevs. Allowable Forward Current05001000150020002500300035000255075100125I f [m A ]Tc [C]Radiation Characteristic0%20%40%60%80%100%X Y80°70°60°50°40°30°20°10°-80°-70°-60°-50°-20°-30°-40°-10°90°-90°5. Reliability5-1. Reliability Test5-2. Failure Criteria-40 C × 30 minutes – 100 C × 30 minutes, 100 cycle85 C, 85 %RH for 500 hoursThermal Shock TestContinuous Operation Test High Temperature Storage TestLow Temperature Storage Test Moisture-proof Test IF=2250mA Tj=140C (with Al-fin) ×1000hrsTest Item100 C × 1000 hours -40 C × 1000 hours Test ConditionIF=2250mA Ta=25C (with Al-fin) ×1000hrs ( Tc=25C )U defines the upper limit of the specified characteristics. S defines the initial value.Note : Measurement shall be taken between 2 hours and 24 hours, and the test pieces should be return to the normal ambient conditions after the completion of each test.Total Luminous FluxΦvIf=2250mA<S × 0.85Measuring Item Symbol Measuring ConditionFailure CriteriaForward Voltage Vf If=2250mA >U × 1.11455001(2)(1)(3)Example of indication label1. TYPE e.g. CLU054-1825B82. P.No. ( Cutomer's P/N )3. Lot No.e.g. 4. Quantity(1) Last digit of the year 14 : year 2014(2) Production month 5 : MayNote: October, November and December are designated X,Y and Z.(3) CE's control number 6. Packing Specification6-1. PackingAn empty tray is placed on top of a 6-tier tray which contain 20 pieces each. (Smallest packing unit: 120 pieces)A label with product name, quantity and lot number is placed on the upper empty tray.Tray (Dimensions: 310 x 210 x 12 mm / Materials: Electrically conductive PS)CUSTOMERTYPE P.NO Lot No Q'ty: CLU***-******-*******: ******: *******: ***---( 1 )---( 2 )---( 3 )---( 4 )7. Precaution7-1. Handling with care for this product-Both the light emitting area and white rim around the light emitting area is composed of resin materials.Please avoid the resin area from being pressed, stressed, rubbed, come into contact with sharp metal nail(e.g. edge of reflector part) because the function, performance and reliability of this product are negatively impacted.-Please be aware that this product should not come into contact with any other parts while incorporating in your lighting apparatus or your other products.-Please be aware that careful handling is required after the attachment of lead wires to prevent the application of any load to the connections.-For more information, please refer to application note "Instruction Manual(COB LED Package)".7-2. Countermeasure against static electricity-Handling of this product needs countermeasures against static electricity because this is a semiconductor product.-Please take adequate measures to prevent any static electricity being produced such as the wearing of a wristband oranti-static gloves when handling this product.-Every manufacturing facility in regard to the product (plant, equipment, machine, carrier machine and conveyance unit) should be connected to ground and please avoid the product to be electric-charged.-ESD sensitivity of this product is over 1000V (HBM, based on JEITA ED-4701/304).-After assembling the LEDs into your final product(s), it is recommended to check whether the assembled LEDs are damaged by static electricity (electrical leak phenomenon) or not.-It is easy to find static damaged LED dies by a light-on test with the minimum current value.7-3. Caution of product assembly-Regarding this product assembling on the heat sink, it is recommended to use M3 screw.It might be good for screw tightening on the heat sink to do temporary tightening and final tightening.In addition, please don’t press with excess stress on the product.-The condition of the product assembling on the heat sink and the control of screw tightening torque needs to be optimized according to the specification of the heat sink.-Roughness, unevenness and burr of surface negatively impact thermal bonding between the product and heat sink and increase heat thermal resistance between them.Confidence of thermally and mechanical coupling between the product and heat sink are confirmed by checkingthe mounting surface and measuring the case temperature of the product.-In order to reduce the thermal resistance at assembly, it might be good to use TIM (Thermal Interface Material) on whole contact surface of the product.In case of using thermal grease for the TIM, it might be good to apply uniformly on the contact surface of the product.In case of using thermal sheet for the TIM, it might be good to make sure that the product is NOT strained by stress when the screws are tightened for assembly.-For more information, please refer to application note "Instruction Manual(COB LED Package)".7-4. Thermal Design-The thermal design to draw heat away from the LED junction is most critical parameter for an LED illumination system. High operating temperatures at the LED junction adversely affect the performance of LED’s light output and lifetime. Therefore the LED junction temperature should not exceed the absolute maximum rating in LED illumination system.-The LED junction temperature while operation of LED illumination system depends upon thermal resistance of internal LED package (Rj-c), outer thermal resistances of LED package, power loss and ambient temperature. Please take both of the thermal design specifications and ambient temperature conditions into consideration for the setting of driving conditions.-For more information, please refer to application note "Thermal Management", "Instruction Manual(COB LED Package)".7-5. Driving Current-A constant current is recommended as an applying driving current to this product.In the case of constant voltage driving, please connect current-limiting resistor to each products in series and controlthe driving current to keep under the absolute maximum rating forward current value.-Electrical transient might apply excess voltage, excess current and reverse voltage to the product(s).They also affect negative impact on the product(s) therefore please make sure that no excess voltage, excess current and reverse voltage is applied to the product(s) when the LED driver is turn-on and/or turn-off.-For more information, please refer to application note "Driving", "Instruction Manual(COB LED Package)".7-6. Lighting at a minimum current value-In a case where the minimum current(I F min) is applied to the product, some of LED dice in the product might look different in their brightness due to the individual difference of the LED dice, and they are not failed.7-7. Electrical Safety-This product is designed and produced according to IEC 62031:2008(IEC 62031:2008 LED modules for general lighting. Safety specification)-Dielectric voltage withstand test has been conducted on this product to see any failure after applyingvoltage between active pads and aluminum section of the product, and to pass at least 500V.-Considering conformity assessment for IEC62031:2008, almost all items of the specification depend uponyour final product of LED illumination system.Therefore, please confirm with your final product for electrical safety of your product.As well, the products comply with the criteria of IEC62031:2008 as single LED package.7-8. Recommended soldering Condition (This product is not adaptable to reflow process.) -For manual solderingPlease use lead-free soldering.Soldering shall be implemented using a soldering bit at a temperature lower than 350C, and shall befinished within 3.5 seconds for one land.No external force shall be applied to resin part while soldering is implemented.Next process of soldering should be carried out after the product has return to ambient temperature.Contacts number of soldering bit should be within twice for each terminal.* Citizen Electronics cannot guarantee if usage exceeds these recommended conditions.Please use it after sufficient verification is carried out on your own risk if absolutely necessary.-For more information, please refer to application note "Instruction Manual(COB LED Package)".7-9. Eye Safety-The International Electrical Commission (IEC) published in 2006 IEC 62471”2006 Photobiological safety of lamps and lamp systems ” which includes LEDs within its scope.When sorting single LEDs according to IEC 62471, almost all white LEDs can be classifiedas belonging to either Exempt Group (no hazard) or Risk Group 1 (low risk).-However, Optical characteristics of LEDs such as radiant flux, spectrum and light distribution are factorsthat affect the risk group determination of the LED, and especially a high-power LED, that emits lightcontaining blue wavelengths,might have properties equivalent to those of Risk Group 2 (moderate risk).-Great care should be taken when directly viewing an LED that is driven at high current, has multipleuses as a module or when focusing the light with optical instruments, as these actions might greatlyincrease the hazard to your eyes.-It is recommended to regard the evaluation of stand-alone LED packages as a referenceand to evaluate your final product.7-10. This product is not designed for usage under the following conditions.If the product might be used under the following conditions, you shall evaluate its effect and appropriate them. In places where the product might:-directly and indirectly get wet due to rain and/or at place with the fear.-be damage by seawater and/or at place with the fear-be exposed to corrosive gas (such as Cl2, H2S, NH3, SOx, NOx and so on) and/or at place with the fear.-be exposed to dust, fluid or oil and/or at place with the fear.8, Precautions with regard to product use(1) This document is provided for reference purposes only so that CITIZEN ELECTRONICS' products are used as intended. CITIZEN ELECTRONICS neither makes warranties or representations with respect to the accuracy or completeness of the information contained in this document nor grants any license to any intellectual property rights or any other rights of CITIZEN ELECTRONICS or any third party with respect to the information in this document. (2) All information included in this document such as product data, diagrams, charts, is current as of the date this document is issued.Such information, however, is subject to change without any prior notice.Before purchasing or using any CITIZEN ELECTRONICS' products listed in this document, please confirm the latest product information with a CITIZEN ELECTRONICS' sales office, and formal specifications must be exchanged and signed by both parties prior to mass production.(3) CITIZEN ELECTRONICS has used reasonable care in compiling the information included in this document, but CITIZEN ELECTRONICS assumes no liability whatsoever for any damages incurred as a result of errors or omissions in the information included in this document.(4) Absent a written signed agreement, except as provided in the relevant terms and conditions of sale for product, and to the maximum extent allowable by law, CITIZEN ELECTRONICS assumes no liability whatsoever, including without limitation, indirect, consequential, special, or incidental damages or loss, including without limitation, loss of profits, loss of opportunities, business interruption and loss of data, and disclaims any and all express or implied warranties and conditions related to sale, use of product, or information, including warranties or conditions of merchantability, fitness fora particular purpose, accuracy of information, or no infringement.(5) Though CITIZEN ELECTRONICS works continually to improve products' quality and reliability, products can malfunction or fail. Customers are responsible for complying with safety standards and for providing adequate designs and safeguards to minimize risk and avoid situations in which a malfunction or failure of a product could cause loss of human life, bodily injury or damage to property, including data loss or corruption.In addition, customers are also responsible for determining the appropriateness of use of any information contained in this document such as application cases not only with evaluating by their own but also by the entire system.CITIZEN ELECTRONICS assumes no liability for customers' product design or applications.(6) Please contact CITIZEN ELECTRONICS' sales office if you have any questions regarding the information contained in this document, or if you have any other inquiries.CITIZEN Micro HumanTech is a registered trademark of Citizen Holding Co., Japan.CITILED is a registered trademark of CITIZEN ELECTRONICS CO., LTD. Japanand are trademarks or registered trademarks of CITIZEN HOLDINGS CO., LTD. JAPAN.is a trademark or a registered trademark of CITIZEN ELECTRONICS CO., LTD. JAPAN.。

LED散热核心-金属/陶瓷基板技术分析光拓光电公司陶瓷基板COB面光源原理：使用高导热的AL2O3氧化铝材料的铝基板,以COB工艺,采多颗低瓦数芯片封装并利用扩散层及光学导光结构点设计以达到均匀的平面光源出光,无重叠影,且出光率较其它封装方式高出20~30%，热阻低于8，陶瓷基板COB面光源的陶瓷基板为高温烧结银涂层。

陶瓷基板COB面光源的优势1、本陶瓷基板平面光源模块可靠性高，陶瓷和芯片都是AL2O3氧化铝材料，膨胀系数相近，不会因温度变化引起晶粒开焊，导致衰减与死灯，保证了芯片的稳定性。

性能稳定，无死灯，无斑块。

2、热阻低于8，陶瓷平面光源的陶瓷基板为高温烧结银涂层。

LED芯片直接封装在陶瓷基板上，热量直接在陶瓷基板上传导，散热快。

3、出光面一致性好，发光角度宽。

发光均匀柔和，无斑马纹，无眩光，不伤眼睛。

4、出光面宽，发光效率高，110LM/W以上，衰减小，10000个小时光衰低于2%。

5、本平面光源为集成化光源模块，组装简便，直接安装使用，无须考虑其它工艺设计。

6、陶瓷平面光源工作时荧光粉与硅胶的结点温度可控制在120°C以下。

LED在芯片表面温度80-90度时依然能够正常工作。

7、耐压4000V以上，耐高压安全性好。

可匹配低电流高电压非隔离电源，能满足产品出口安规认证。

降低电源成本，提高电源效率，从而提高陶瓷平面光源光转换效率。

LED散热核心-金属和陶瓷基板技术分析散热基板随着线路设计、LED种类及功率大小有不同的设计，而产品的可靠性与价格是决定散热设计最重要的规范。

散热基板主要的功能是提供LED所需要的电源及热传递的媒介，1个好的LED散热板是能够把80%-90%的热传递出去，这样的散热板就是好的基板。

另外1个功能是能够增加LED底部的面积，这样可以使热更快的先后传导更快的均匀散开。

由于传统的印刷电路板热传导系数低(大都在0.5W/mK以下，且仅能利用增加散热用的通孔有限度地改善散热，已经逐渐在高功率LED的散热市场中消失。