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How to replace the Zener diode?

If there is a problem with the regulator diode in the circuit, how should the regulator diode be replaced?

After the Zener diode is damaged, it should be replaced with a Zener diode of the same type or a Zener diode with the same electrical parameters.

A high dissipation power regulator diode with the same stable voltage value can be used to replace a regulator diode with a low dissipation power, but a regulator diode with a low dissipation power cannot be used to replace a regulator diode with a high dissipation power. For example, a 0.5W, 6.2V regulator diode can be replaced with a 1W or 6.2V regulator diode.