This section provides overview, applications, and principles of pin diodes. Also, please take a look at the list of 13 pin diode manufacturers and their company rankings.
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A PIN diode is a diode with a true I-type semiconductor with high electrical resistance between the P-type and N-type semiconductors and a wide depletion layer.
The wider depletion layer improves the response characteristics. The forward voltage is almost the same as that of a PN junction diode. They can also be used as capacitors when reverse voltage is applied.
PIN diodes have low capacitance between terminals, low series resistance, and high frequency characteristics.
Therefore, they are used for switching high-frequency signals such as those used in cellular phones, since they do not easily affect high-frequency communication lines.
It is also used in band switching, AGC circuits, and receiving attenuators as a variable resistor because of its ability to change resistance in response to current. It also acts as a capacitor when a reverse voltage is applied.
*Including some distributors, etc.
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