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Hioki LR8431-20: Identifying SMD component(Relay?)

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Martin72:
Hi,

This data logger has burnt out components on 2 channels, according to the board designation (RY XXX) I assume that these are SMD relays.
The marking code on this suspected relay is W210SB16, a google search turned up nothing, nothing at all. :P
Any ideas ?

Kean:
My guess is they are AQW210S PhotoMOS relays from Panasonic (previously NAiS or Matsushita - thus the M logo)

https://www3.panasonic.biz/ac/e_download/control/relay/photomos/catalog/semi_eng_gu2a_aqw21_s.pdf

Martin72:
Hi Kean,
Thanks, will check the datasheet "tomorrow", but that looks very promising. :-+

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