Electronics > Repair
What part is this?
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OutThere:
it's from the PFC part of a switch mode power supply. it is across an inductor. the part number is SG7004 . I was thinking it's a Zenor diode, the silk screen part shows a box with a "G" inside. I used on a dvm the diode test , the display just stayed at open loop. i used one of those parts testers with a small LCD, said bad part , unknown part'

coromonadalix:
gas tube discharge maybe ?
boB:

Can you measure it ?   Diode drop ?  Resistance ?

If low resistance, it might be a fuse

fzabkar:
Spark Gap

https://brightking.yageo.com/PRODUCTS/list_123.aspx?lcid=52

https://brightking.yageo.com/uploadfiles/file/SPG/2021031418221622161050.pdf

https://www.unictron.com/protection/circuit-protection-components/spark-gap-protectors-spg/
OutThere:
please  R E A D my post
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