Littelfuse Resettable Fuse 0.12A, 48V DC Surface Mount, nanoSMDC012F Series NANOSMDC012F

Littelfuse NANOSMDC012F Resettable Fuse is a compact, surface-mount PolySwitch device engineered for the protection of electronic circuits against excessive currents. This fuse provides a hold current of 0.12A and trip current of 0.39A, operating reliably at 48V DC in demanding environments while delivering fast response to fault conditions. Its nanoSMDC012F series construction ensures minimized footprint and simple PCB integration for modern electronics.

Under electrical overload or short circuit conditions, this resettable fuse rapidly shifts from a low-resistance state to a high-resistance state, effectively limiting current flow and protecting sensitive components. Once the fault is cleared and power is cycled, the fuse automatically resets to its low-resistance state, eliminating the need for manual replacement. Designed with tin-plated terminals, it provides robust and durable contact performance for dependable operation.

This Littelfuse device is particularly maintenance-free, offering automatic reset capability for thousands of cycles, making it perfect for continuous-use applications. With its small dimensions (3.4mm long, 1.8mm wide, and 1mm high), it fits easily in space-constrained circuit designs where high-density placement and reliability are crucial.

The fuse features a minimal resistance range (1.4Ω to 6.5Ω), and supports a power dissipation of 0.5W, ensuring efficient thermal management during protection events. Its wide maximum operating temperature of 85°C enables safe operation in hot environments, and the surface mount design facilitates assembly and manufacturing automation.

Applications for the NANOSMDC012F resettable fuse span security systems, power supply circuits, switching devices, automotive electronics, medical instruments, instrumentation, computer peripherals, and telecommunications equipment. Wherever overcurrent protection with automatic recovery is needed, this device helps maintain system uptime and reduces service intervention.

Automatic resettable fuse with fast response to overcurrent conditions. Rated for 0.12A hold current and 0.39A trip current at 48V DC. Surface mount technology allows efficient PCB integration. Small footprint: 3.4mm length, 1.8mm width, and 1mm height.

Tin-plated terminals ensure reliable electrical contact. Wide operating temperature range up to 85°C. Minimal resistance values: 1.4Ω minimum, 6.5Ω maximum. Maintenance-free protection for thousands of reset cycles. Suitable for power supplies, security systems, automotive, medical devices, and instrumentation.

Explore more electronic fuses and circuit protection devices from Littelfuse and the Electronic Fuse category on EnvMart for advanced industrial, commercial, and engineering needs.