SL1206300 with PTC Resettable Fuses 1206 RoHS is an electronic part manufactured by TECHFUSE. It is a 1206-sized surface mount device (SMD) resettable fuse. It is designed to act as an on-board circuit breaker, and provides short circuit protection for integrated circuits (ICs), transistors, and other components in automotive, appliance, and consumer electronics. Instead of having to replace a part after an overload, this fuse is designed to reset itself and continue protecting the circuit. The resistance of the device increases significantly when an overload occurs, and reduces as the load decreases. It is RoHS compliant, meaning it does not contain dangerous materials such as lead, cadmium, or mercury.