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SMT LED light-emitting article!

by:Tranch      2020-04-17

SMD leds are called SMD LED, which means that the meaning of surface-mount leds, SMD patch helps to improve the production efficiency. It is a solid-state semiconductor devices, it can be directly put DianZhuan into light. The voltage of 1. 9 - 3. Minimum 2 v, the red light, yellow light voltage, the heart of the LED is a semiconductor chip, chip attached on a bracket, at the end of the end is negative, the positive and the other end connected to the power supply the whole chip is encapsulated by epoxy resin. Semiconductor chip consists of two parts, one part is a p-type semiconductor, dominated by holes in it, the other end is n-type semiconductor, here is mainly electronic. But this two kinds of semiconductor connected, forming a P - between them N junction. When a current flows through a wire to the chip, the electronic will be to P, electron and holes in the P zone compound, then will be issued in the form of photon energy, so in our opinion this LED light-emitting < / P> < P> < / P>
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