COEV Since our first sale of polymeric positive temperature technology (PPTC) devices in 1980, we have been developing products that prevent damage from electrical faults. To provide you with wider voltage, current, and temperature protection, we expanded our PolySwitch family of products in a variety of form factors, giving you the protection to make your world safer and your electronics more reliable. Our products can protect an array of your applications, including cellphones, tablets, vehicles, home appliances, and LED lighting fixtures.

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