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Steady Module, Speaker Protection Circuit Board, Dual Channel Circuit Board 10A DC1218V PowerOn Mute Delay Component, Electronic Surge Protectors
Why are USB surge protectors not commonly used or widely available? Is the AC to DC transformer alone sufficient to provide protection from something like a nearby lightning strike? - Quora
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Colorful varistors. Circuit board detail. Electronic components for surge protector. Diodes, red, blue and yellow voltage-dependent resistors on green PCB from dismantled uninterruptible power supply. Stock Photo | Adobe Stock
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