Company new

What is the cause of overheating of fast recovery diodes?

What is the cause of overheating of fast recovery diodes?

The reason for the overheating of the fast recovery diode loading, in the process of use, replacing a large power fast recovery diode will cause the loading overheating phenomenon.

Due to the high current signal frequency of the circuit, the speed of the diode can not keep up. What you measure is the effective value of the current, which should be DC. There may be high frequency components in the signal, and the peak current is much higher than the 2A you measured, which leads to the high peak power of the diode and the hot diode.

Fast recovery diode loading overheat treatment, in general, it is recommended that you use ultra-fast recovery diode