The LITTELFUSE 466 Series Fast-Acting Surface Mount Fuse (SMF) is a compact, thin-film device specifically engineered for secondary circuit protection in applications where space is limited, such as hand-held portable electronic devices. This fuse is 100% lead-free and compliant with the RoHS directive, ensuring environmental responsibility. The availability of halogen-free versions (identified by the “HF” suffix) further enhances its suitability for modern electronics. Its robust design incorporates an alloy-based element cover coating for superior inrush withstand characteristics and easy amperage identification. The fuse's low profile and flat top surface facilitate efficient pick-and-place operations, making it a versatile solution for a wide range of electronic devices.