SPEC NO: DSAL0849 REV NO: V.3A DATE: DEC/04/2011 PAGE: 2 OF 6
APPROVED: WYNEC CHECKED: Allen Liu DRAWN: C.H.HAN ERP: 1201006490 
Handling Precautions
Compare to epoxy encapsulant that is hard and brittle, silicone is softer and flexible. Although its characteristic
significantly reduces thermal stress, it is more susceptible to damage by external mechanical force.
As a result, special handling precautions need to be observed during assembly using silicone encapsulated
LED products. Failure to comply might lead to damage and premature failure of the LED.
1. Handle the component along the side surfaces by using forceps or appropriate tools.
2. Do not directly touch or handle the silicone lens surface. It may damage the internal circuitry.
3. Do not stack together assembled PCBs containing exposed LEDs. Impact may scratch the silicone lens or
  damage the internal circuitry.
4.1. The inner diameter of the SMD pickup nozzle should not exceed the size of the LED to prevent air leaks.
4.2. A pliable material is suggested for the nozzle tip to avoid scratching or damaging the LED surface during pickup.
4.3. The dimensions of the component must be accurately programmed in the pick-and-place machine to insure precise pickup
  and avoid damage during production.
5. As silicone encapsulation is permeable to gases, some corrosive substances such as H
2
S might corrode silver plating of
leadframe. Special care should be taken if an LED with silicone encapsulation is to be used near such substances.
相关PDF资料
AA3021ES LED RED RECT CLEAR SMD
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AA3021YS LED YELLOW RECT CLEAR SMD
相关代理商/技术参数
AA3021ES 功能描述:标准LED-SMD Red Water Clear 625nm 30mcd RoHS:否 制造商:Vishay Semiconductors 封装 / 箱体:0402 LED 大小:1 mm x 0.5 mm x 0.35 mm 照明颜色:Red 波长/色温:631 nm 透镜颜色/类型:Water Clear 正向电流:30 mA 正向电压:2 V 光强度:54 mcd 显示角:130 deg 系列:VLMx1500 封装:Reel
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AA3021LZGSK 功能描述:LED GREEN CLEAR SMD 制造商:kingbright 系列:- 包装:剪切带(CT) 零件状态:在售 颜色:绿色 配置:独立式 透镜颜色:无色 透镜透明度:透明 毫烛光等级:180mcd 透镜样式/尺寸:椭圆形,带平顶,2.50mm x 1.50mm 电压 - 正向(Vf)(典型值):2.65V 电流 - 测试:2mA 视角:125° 安装类型:表面贴装 波长 - 主:525nm 波长 - 峰值:515nm 特性:- 封装/外壳:2-SMD,J 形引线 供应商器件封装:- 大小/尺寸:3.00mm 长 x 2.00mm 宽 高度(最大值):1.50mm 标准包装:1
AA3021PR4S 制造商:KINGBRIGHT 制造商全称:Kingbright Corporation 功能描述:3.0x2.0mm SURFACE MOUNT LED LAMP
AA3021PR4S/Z 制造商:KINGBRIGHT 制造商全称:Kingbright Corporation 功能描述:3.0x2.0mm SURFACE MOUNT LED LAMP