The FSMD020-1206-R with PTC Resettable Fuses 1206 RoHS manufactured by Fuzetec is a surface mount device that has a low-resistive chip with a protective overcurrent function. It is designed to protect against accidental short circuit conditions and minor surges. The PTC resettable fuses can handle currents up to 20 Amp with a response time of milliseconds. The RoHS compliant design, which is free of hazardous substances, is suitable for use in industrial, medical, security, and other applications. The device has a compact size of 1206 (3.2mm x 1.6mm) and a wide temperature range from -40°C to +125°C. It is an electronically triggered device that will automatically reset itself after the overcurrent event has passed.