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What is SMD LED
- Oct 31, 2017 -

SMD LED is the surface mount LED meaning, SMD patch helps to improve production efficiency, and different facilities applications. Is a solid-state semiconductor device that can convert electricity directly into light. Its voltage is 1.9-3.2V, red, yellow light voltage is the lowest, LED heart is a semiconductor chip, one end of the chip attached to a bracket, one end is negative, the other end connected to the positive power supply, so that the entire chip is Epoxy encapsulated. Semiconductor chip consists of two parts, part of the P-type semiconductor, in which the dominant hole inside, the other end is the N-type semiconductor, mainly electronic here. But when the two semiconductors are connected, they form a P-N junction between them. When the current through the wire acting on the chip, the electron will be pushed to the P area, in the P area with the hole in the electronic composite, and then will be issued in the form of photon energy, which is the principle of LED light. And the wavelength of light is the color of light, which is determined by the material that forms the P-N junction.

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