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Old 11-28-2021, 09:56 PM   #5
Badcaps Veteran
Join Date: Dec 2010
City & State: Alberta
My Country: Canada
Posts: 2,524
Default Re: S-10-5 power supply schematic etc. 5V 2A

The problem with these smaller power supply modules, they're always missing parts to be cheap.
I look for: a fuse, common-mode choke/X-cap for EMC, NTC and decent sized primary cap. It's too much to ask. A name-brand AC wall-wart has all of that. But who wants to glue that down in your enclosure.
I have another board, high quality - but the transformer runs pretty hot even at 1A load.

In the 10W league, it's cheap chinese open-frame, or "high end" $20 potted modules like CUI PSK-S12B module. CUI VOF-10B rated 3-year life and has Teapo caps. UGH.
Meanwell I'd looked at it was all big, 25W-50W is the smallest ,then the potted modules IRM-10-5V but who knows what's inside.
Popular is the Hi-Link HLK-PM01 modules but no fuse, no input EMC filter.

I'll keep looking, it seems easier to mod a cheap open-frame one.
redwire is offline   Reply With Quote