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Component Identification

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mark_3094

New Member
Hi,

I have a circuit board (it's a power supply), and it has several blue components that I can't identify.
They are about 10mm wide, roundish, and stand upright. They have two pins.
They have AC222M printed on them, but I can't find anything on the net about this.

Sorry I can't post a photo...

Any ideas?
 
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