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TonyDuell · 26th Mar 2021, 6:08 am

You're right, it's MTP5N06. I mis-typed the number...

I can find plenty of modern MOSFETs in a TO220 package (to fit the heatsink) with higher voltage/current ratings, lower channel resistance, etc. They should be 'better'. But my experience of SMPSUs is that things don't always work out like that.

26th Mar 2021, 6:08 am	#8
TonyDuell Dekatron Join Date: Jun 2015 Location: Biggin Hill, London, UK. Posts: 5,215	Re: Weir HSS100/4 PSU blowup You're right, it's MTP5N06. I mis-typed the number... I can find plenty of modern MOSFETs in a TO220 package (to fit the heatsink) with higher voltage/current ratings, lower channel resistance, etc. They should be 'better'. But my experience of SMPSUs is that things don't always work out like that.