贴片式LED（Light Emitting Diode，发光二极管）通常有两个引脚，一个是正极（Anode），另一个是负极（Cathode）。正确区分正负极对于正确连接LED至电路是非常重要的。以下是一些帮助你区分贴片LED正负极的方法：1.标记或标识： 通常，贴片LED的正极会有一个稍微较长的引脚，或者在LED的底部有一个小凸起，用于标识正...
LED通常有四个引脚,分别是正极(Anode,A)、负极(Cathode,K)、限流电阻(R)和公共接地(GND)。 二、LED正负极的识别方法 1.观察LED引脚 一般来说,LED的正极较长,负极较短。此外,正极的引脚通常比负极粗,这是因为正极承担了较大的电流。也可以通过观察LED内部的金属块来区分,金属块连接的是负极。 2.使用万用表...
PN结是P型半导体和N型半导体的结合面,其中P型半导体的材料被称为阳极(Anode),N型半导体的材料被称为阴极(Cathode)。 二、LED的工作原理 当LED两端施加正向电压时,即阳极电压高于阴极电压,电流会从阳极流向阴极。在这种情况下,PN结处会发生以下几个重要的物理现象: 1.载流子注入:当电流通过PN结时,P型材料中的空穴...
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The anode is where electricity moves into the diode, while the cathode is where the current flows out in the other direction. The anode is referred to as the positive terminal; the cathode is referred to as the negative terminal. The cathode plays the role of an electron acceptor. The anod...
Max. Reverse Voltage:3-3.3v;More discounts:Please contact us;Type:LED;Package Type:Other;Media Available:Other;Place of Origin:CN;Operating Temperature:standard;Series:LED diode;Mounting Type:custom installation;Description:LED diode;Model Number:RGB LED
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As with p-n junctions, electrons and holes flow towards the junction when a positive differential voltage is applied between the anode (p-side), and cathode (n-side). Once an electron is recombined with a hole, it releases energy. Depending on the physical properties of the p-n junction ...
A power interruption protection structure for an LED string light implements a Zener diode 30 connected between an anode and a cathode inside or outside a casing 11 of each of plural monochromatic or polychromatic LEDs 14 that are connected in series to form the LED string light. In case of...
LED（Light Emitting Diode）发光二极管的共阳极和共阴极是指LED中的引脚连接方式，有以下区别和作用：1. 共阳极（Common Anode）：- 区别：在共阳极配置中，所有LED芯片的阳极引脚连接在一起，并与正极供电连接。各个LED的阴极引脚则分别连接到地线。- 作用：共阳极配置的LED会在阳极引脚上产生电位，通过将...