Date：2026-01-08 Categories：Product knowledge Hits：130 From：Guangdong Youfeng Microelectronics Co., Ltd
5、 The difference between voltage regulator diode and ordinary rectifier diode
1. Definition
Zener diode is a special type of diode that has the characteristic of stabilizing the output voltage. Its working principle is to stabilize the input voltage and output it as a certain DC voltage through the internal circuit of the chip. Zener diodes are commonly used in power circuits to ensure stable operation of the circuit.diode
A regular rectifier diode is a type of ordinary diode whose main function is to convert alternating current into direct current. Its working principle is to utilize the unidirectional conductivity of diodes to convert the voltage of the positive or negative half cycle into direct current through the forward conduction or reverse cutoff of the diode.diode
2. Structure
The basic structure of voltage regulator diodes and ordinary rectifier diodes is composed of P-type and N-type semiconductor materials. However, the internal structure of the voltage regulator diode is relatively complex, and its chip is composed of multiple PN junctions, metal connection lines, and other materials. The structure of ordinary rectifier diodes is relatively simple, usually with only one PN junction and two pins.diode
3. Job characteristics
The main characteristics of a voltage regulator diode are its fixed output voltage and high stability. Its output voltage can be adjusted within a certain range, usually at common voltage values such as 3.3V, 5V, 12V, etc. Zener diodes can automatically adjust the output voltage when the input voltage changes, maintaining stable operation of the circuit.diode
The main characteristic of ordinary rectifier diodes is their unidirectional conductivity, with a voltage drop of around 0.7V when conducting in the forward direction and a very high resistance when turning off in the reverse direction. Ordinary rectifier diodes are commonly used in circuits for rectifying power supplies, reverse protection, and other purposes.diode
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