How to choose rectifier diodes correctly

What should I pay attention to when purchasing rectifier diodes? What issues should be considered? When purchasing rectifier diodes, we often ask ourselves how to consider and ensure that we can buy with confidence.

Firstly, we need to know that rectifier diodes are generally planar silicon diodes used in various power rectifier circuits. Therefore, when selecting rectifier diodes, the main considerations should be their maximum rectification current, maximum reverse operating current

Parameters such as cut-off frequency and reverse recovery time.

The rectifier diode used in ordinary series stabilized power supply circuits does not have high requirements for the reverse recovery time of the cutoff frequency. As long as the maximum rectification current and maximum reverse working current of the rectifier diode are selected according to the requirements of the circuit, they can meet the requirements

Polar diode is sufficient. For example, 1N series, 2CZ series, RLR series, etc.

The rectifier diodes used in the rectifier circuit and pulse rectifier circuit of the switching voltage regulator power supply should be selected with higher operating frequency and shorter reverse recovery time (such as RU series, EU series, V series, 1SR series)

Or choose a fast recovery diode.