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://ift.tt/1Cl9sBa

IEC_60601

Rubycon Caps

CD 263 Caps.

Vishay Optocouplers

Forum HERE

from EEVblog - The Electronics Engineering Video Blog http://ift.tt/1nq2AJ2

via Yuichun