The RF1345-000 with PTC Resettable Fuses 1206 RoHS is an electronic part manufactured by Littelfuse. The RF1345-000 is a component designed to protect circuits, components, and wires from dangerous over-current conditions, and it is also RoHS compliant. This part is designed to safely and quickly shut off electrical current to prevent further damage to equipment. This part features a positive temperature coefficient (PTC) thermistor which acts like a fuse, expanding and breaking the circuit when the current flow exceeds the rated current. The part is manufactured in a 1206 package with a resettable feature that will automatically reset after the current flow is reduced, and features a wide operating voltage of 5 to 36 volts. With a wide operating temperature range of -55°C to +125°C, this part is suitable for automotive, industrial, military, and commercial applications.