FSMD014-R with PTC Resettable Fuses 1812 RoHS is a type of fuse manufactured by Fuzetec. It is designed to protect against transient current surges, preventing overvoltage potential damage to electronic devices and components. The fuse is constructed with a proprietary fast-acting PTC element, which is resetable and blocked when a current surge occurs. It also features a self-extinguishing housing made of fire-resistant materials, making the fuse RoHS compliant. Additionally, the FSMD014-R has a maximum current rating of 14A, and it is rated for a maximum voltage of 250VDC. It is commonly used to protect sensitive electronic devices from large current surges.