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谁能告诉我led灯封装尺寸是多少？

谁能告诉我led灯封装尺寸是多少？

浏览：45次 | 提问时间： 08-06 10:13

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链子再好也栓不住想跑的狗 08-06 10:13

极限参数的意义允许功耗Pm:允许加于LED两端正向直流电压与流过它的电流之积的最大值。超过此值，LED发热、损坏。最大正向直流电流IFm：允许加的最大的正向直流电流。超过此值可损坏二极管。最大反向电压VRm：所允许加的最大反向电压。超过此值，发光二极管可能被击穿损坏。工作环境topm:发光二极管可正常工作的环境温度范围。低于或高于此温度范围，发光二极管将不能正常工作，效率大大降低。 2．电参数的意义正向工作电流If：它是指发光二极管正常发光时的正向电流值。在实际使用中应根据需要选择IF在0.6·IFm以下。正向工作电压VF：参数表中给出的工作电压是在给定的正向电流下得到的。一般是在IF

怣 08-06 10:22

20mA时测得的。发光二极管正向工作电压VF在 1.4～3V。在外界温度升高时，VF将下降。 V-I特性：发光二极管的电压与电流的关系在正向电压正小于某一值（叫阈值）时，电流极小，不发光。当电压超过某一值后，正向电流随电压迅速增加，发光。由V-I曲线可以得出发光管的正向电压，反向电流及反向电压等参数。正向的发光管反向漏电流IR

没让你失望 08-06 10:30

LED的封装方式主要有以下方式： 1.引脚式（Lamp）LED封装； 2.表面组装（贴片）式（SMT－LED）封装； 3.板上芯片直装式（COB）LED封装； 4.系统封装式（SiP）LED封装如果是贴片的，电阻电容LED通用，用0805这个封装就行了。直插的，只要大概有两个孔就可以，可以用电解电容直插封装RB7.6。其实DXP里有专门的LED封装及原理图，就叫做LED

撞进你怀 08-06 10:38

尺寸种类T45:1000×45×74mm（长宽高）T54:1000×54×74mm（长宽高）T62:1000×62×97mm（长宽高）T61:1000×60×71mm（长宽高）T64:1000×64×128mm（长宽高）T42:1000×42×68mm（长宽高）希望我的回答可以帮助到你

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谁能告诉我led灯封装尺寸是多少？