General MOSFET upgrade rules?

[Glitcher]

Whats the typical rule when looking to replace a commonly failed FET with a different labeled FET in a power supply?

[Ltank]

Re: General MOSFET upgrade rules?

Generally there are parts that will cross reference with other parts. There used to be cross reference books but generally are not available with today's search engines. Going with a part that has higher voltage and current ratings.