Hi Kumar,
The datasheets give the following parameters:
IRF510: RDS = 0.54 Ohms; ID(continous) = 5.6 A; maxPower = 43W; Input
capacitance = 180 pF
IRF540: RDS = 0.077 Ohms; ID(continous) = 28A; max Power = 150W; Input
capacitance = 1700 pF
The IRF540 is a more robust version than the IRF510. It looks to me as if
the 540 has more junctions wired internally in parallel. This is also
reflected in the input capacitance, which is much higher for the 540. I am
afraid this might cause problems for the gate driving circuit, especially
at higher frequencies.
Is anybody out there with a working IRF510 amp who would like to do some
experiments with a IRF540 replacement? Please share your results!
73 Heinz, OE5EEP
Am Freitag, 22. Juli 2005 07:33 schrieb kumar gautam:
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HI,
HERE IN MARKET IRF510 IS NOT AVAILABLE, ONLY IRF540 IS AVAILABLE. ANY
ONE HELP ME THAT IRF540 IS EQUIVALENT OF IRF510 OR I CAN SUBSTITUTE THIS
FET. WITH 73'S
DE KUMAR GAUTAM
