Help - FJPF5200OTU obsolete!
I had a fellow come by with one of your Placid power supply boards - the FJPF5200OTU is bad and Mouser and Digikey says the part is now obsolete. Their substitutes are a different packaging.
Dunno how I get drug into these things; but, he's a good egg and I'd like to help him out.
A few weeks ago, I came across the same situation and replaced the bad 5200OTU with an old Toshiba 2SD2271 for a substitute, that is now working fine with my Placid HD.
I would try to keep the hFE > 80 - otherwise as long as the pin-out is the same you could use a multitude of power transistors there. 25-50W types are pretty common.
They don't have to be the insulated package - that is just convenient.
If you use non-insulated type you should provide the insulation yourself.
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