18. Diode Replacement

Question.3

A circuit originally uses a Schottky diode.
Because it is unavailable, it is replaced with a fast-recovery diode that has the same voltage and current rating.

What is the main risk with this replacement?

The fast-recovery diode will not conduct current
The circuit may become less efficient and generate more heat
The diode will stop blocking reverse voltage
There is no difference if voltage and current ratings match

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