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What are the methods for checking fast recovery diodes

What methods can be used to check if there is a problem with the fast recovery diodes?

Place the multimeter in R × At 1k gear, measure the forward and reverse resistance values of the fast recovery diode, where the forward resistance value is about a few ohms and the reverse resistance value is ∞; If the resistance measurements are all ∞ or 0, it indicates that the measured fast recovery diodes is damaged.

The detection method for the is the same as the above method, but it is necessary to first determine which pin is the common end of the , and then use the above method to detect the two fast recovery diodes.