The SDV1005E260C500NPTF is an electronic part manufactured by Sunlord that is composed of varistors. This component has two parts, which are an unshielded disc type varistor rated at 26V with 31~38 joule and an unshielded disc type varistor rated at 58V with 500 joules. The component is constructed with 0402 chips and has a RoHS compliant design. This part is used for protecting circuits from electrical surges, as well as voltage spikes or noise. This device can act as a current-limiting element that can prevent an over-voltage condition from developing in an associated circuit.