This write-up explains how to use these tools to determine and why understanding the datasheet is more important than a simple "drop-in" list. Part 1: What is a MOSFET Equivalent? An equivalent MOSFET is not just about matching pins (though Gate, Drain, Source is standard). It is about matching critical electrical parameters within acceptable tolerances.
When in doubt for a power supply MOSFET, overspec ( V_DSS ) by 20% and ( I_D ) by 50%, but never overspec ( Q_g ) beyond 30% of the original. all mosfet equivalent book datasheet
Want a sample "Quick Equivalent Table" for the 10 most common MOSFETs? Let me know, and I'll generate one for you. This write-up explains how to use these tools