Littelfuse Resettable Fuse 1.1A Hold, 2.2A Trip, 16V DC, 7.4x3x14.2mm, Radial, RUSBF110

The Littelfuse RUSBF110 is an industrial-grade resettable fuse equipped with a 1.1A hold current and a 2.2A trip current, specifically engineered for the protection of electronic circuits against overcurrent faults. It is optimized for systems operating at 16V DC and features a high-quality PolySwitch PTC (Positive Temperature Coefficient) design that provides quick response and automatic resetting once the fault condition is removed and power is reset.

This resettable fuse is built with compact radial leads and is intended for PCB wire-ended mounting, making it an excellent option for densely packed circuit boards. With dimensions of 7.4mm in length, 3mm in width, and 14.2mm in height, it fits efficiently in space-constrained layouts. The product exhibits a minimum resistance of 0.05Ω and a low maximum resistance of 140mΩ, ensuring reliable and efficient performance with minimal line losses.

Engineered to operate within a temperature range of -40°C to 60°C, the RUSBF110 demonstrates exceptional robustness in a variety of industrial and electronic environments. Its 0.7W rated power dissipation supports efficient energy use during normal operation.

Main applications of this Littelfuse resettable fuse include use in security systems, power supplies, transformers, power switching devices, automotive electronics, medical equipment, instrumentation, control panels, computers, peripherals, audio-visual devices, and telecommunications infrastructure. Its capacity for automatic recovery and ease of installation reduce maintenance costs and enhance long-term system protection.

This Littelfuse series device meets comprehensive international approvals, including UL, CSA, TUV, and RoHS, ensuring reliable operation and global compliance. The PCB wire-ended orientation simplifies integration into production assemblies and machinery, and it is well-suited for manufacturing environments that demand high safety and repeatability.

Choose the Littelfuse RUSBF110 resettable fuse for your industrial, automotive, electronic, instrumentation, and control projects where rapid reset, compact size, and proven standard compliance are essential for system safety and operational integrity.

Explore more resettable fuses and circuit protection solutions in the Electrical Fuse section or browse Littelfuse products for your critical applications.