Chip diode what is?

Release time:

2024-03-27

Product introduction:
It is an electronic device with unidirectional conduction current. There is a PN junction two lead terminals inside the semiconductor diode. This electronic device has unidirectional current transduction according to the direction of the applied voltage. In general, a chip crystal diode is a p-n junction interface formed by sintering a p-type semiconductor and an n-type semiconductor. A space charge layer is formed on both sides of the interface to form a self-built electric field. When the applied voltage is equal to zero, the diffusion current caused by the concentration difference of carriers on both sides of the p-n junction is equal to the drift current caused by the self-built electric field, which is also the diode characteristic under normal conditions.
Specific parameters:
The tube voltage drop of the chip diode: the forward tube voltage drop of the silicon diode (non-luminous type) is 0.7V, and the forward tube voltage drop of the germanium tube is 0.3V. The forward tube voltage drop of the light-emitting diode will vary with different light-emitting colors. There are mainly three colors. The specific voltage drop reference values are as follows: the voltage drop of the red light-emitting diode is 2.0-2.2V, the voltage drop of the yellow light-emitting diode is 1.8-2.0V, and the voltage drop of the green light-emitting diode is 3.0-3.2V. The rated current during normal light emission is about 20mA. The voltage and current of the patch diode are not linear, so when different patch diodes are connected in parallel, they should be connected with appropriate resistors.
SMD diode characteristics SMD diode (English: Diode), electronic components, a device with two electrodes, only allows current to flow in a single direction. Many of the uses are applied to its rectifying function. The varactor diode is used as an electronic adjustable capacitor.

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