Bel Fuse's SSQ 4/1K is a Surface Mount 4 Amp Resettable Fuse in a 0805 (SMD) Chip footprint. It is used to protect circuits from over current and short circuits and it features a zero-voltage-drop holding current and extremely low let-through energy. It also has a fast tripping time ideal for use in end product applications. The device meets UL and CSA standards and is RoHS compliant.