Date：2025-08-25 Categories：Product knowledge Hits：146 From：Guangdong Youfeng Microelectronics Co., Ltd
17. Transient voltage suppression diode
TVP tube provides fast overvoltage protection for circuits, divided into bipolar and unipolar types, classified according to peak power (500W-5000W) and voltage (8.2V-200V).
18. Dual base diode (single junction transistor)
A three terminal negative resistance device with two bases and one emitter, used in relaxation oscillation circuits and timed voltage readout circuits, has the advantages of easy frequency adjustment and good temperature stability.
19. Light Emitting Diodes
Made of gallium phosphide and gallium arsenide materials, with small volume and forward driven luminescence. Low working voltage, low working current, uniform light emission, long lifespan, capable of producing red, yellow, and green monochromatic light.
3、 Classify based on characteristics
Point contact diodes are classified according to their forward and reverse characteristics as follows.
1. Generally, point contact diodes are used
As the title suggests, this type of diode is commonly used in detection and rectification circuits, and is an intermediate product with neither particularly good nor particularly bad forward and reverse characteristics. For example, SD34, SD46, 1N34A, etc. belong to this category.
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