EEVblog #659 – Medical Plugpack Teardown

What’s inside an IEC60601-1 medical class 5V mains DC-DC plugpack?
What is the difference between PCB clearance and creepage?
A German FRIWO 5V FW7555M/05 brand medical grade isolation unit vs a cheap Wun Hung Lo consumer brand.
Also a comparative look at transformer construction.

Datasheets & Links:

http://www.farnell.com/datasheets/30889.pdf

http://en.wikipedia.org/wiki/IEC_60601

http://www.rubycon.co.jp/en/catalog/e_pdfs/old/aluminum/e_yxa.pdf

http://xcnet.de/projekte/xnetcreate.de_v2/pics/kunden/dateimanager/5221/JE8_CD_263_BK.pdf

http://www.vishay.com/docs/83515/tclt1000.pdf

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