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Old 19th November 2003, 09:00 PM   #1
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Default Seeking advise on mosfet equivalents

Greetings.
I was recently given two high powered power amps which need replacement mosfets (j50 and k135)
I am having dificulty sourcing the replacement parts and was wondering if there are equivalents for the mosfets.
Any advice would be greatly appreciated - Luke -
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Old 20th November 2003, 02:58 PM   #2
mskeete is offline mskeete  United Kingdom
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visit http://exicon.com/
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Old 20th November 2003, 09:06 PM   #3
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www.Farnell.com has them.
They are not the original (obsolete Hitachi) but they are ok, thrust me.

Dick.
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Old 21st November 2003, 05:29 AM   #4
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I have a bunch of them for sale, unsused and in their original box.
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Old 24th November 2003, 08:21 PM   #5
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Default IR vs Toshiba MOSFET SOAs

I was checking out the IRFP240 & IRFP9240 data sheets vs the Toshiba 2SJ201 & 2SK1530 data sheets, and differences in the single pulse SOA envelopes really leaped out at me. The Toshibas spec the same envelope for a 100mS pulse as IR does for a 10mS pulse. Is this a real difference in SOA, or is IR just being very conservative here? If it's real, it would make a big difference for my intended application.

Also, anybody know a stocking distributor for the Toshiba power mosfets in the US?

TIA.
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Old 25th November 2003, 10:27 AM   #6
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Keep away from the Exicons if the mosfets are used near their ratings - the equivalents aren't quite so equivalent. Although they are more expensive, the Farnell choices are more reliable.

Cheers
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