Precautions for fast recovery diodes​

Precautions for fast recovery diodes:

Some single tubes have a total of three pins, with the middle pin being an empty pin that is usually cut off at the factory, but there are also some that are not cut off.

If one of the pipes is damaged, it can be used as a single pipe.

When measuring the pressure drop of the guide wire, R must be used × 1st gear. If R is used × At 1k gear, due to the low test current, which is much lower than the normal working current of the tube, the measured VF value will be significantly lower. In the above example, if R is selected × When measured at 1k level, the forward resistance is equal to 2.2k Ω, at which point n '=9 bars. The calculated VF value is only 0.27V, much lower than the normal value (0.6V).