Littelfuse 9 A Resettable Fuse 30V dc Radial Lead Orientation with Power Dissipation 4.2W RUEF900

Littelfuse RUEF900 resettable fuse is a high-quality protection device rated for 9 A hold current and 30V dc operating voltage. It is designed to protect sensitive electrical and electronic circuits by automatically resetting after an overload or short circuit condition has been cleared.

This radial lead fuse is compact with dimensions 24.1mm in length, 29mm in height, and 3mm in width, making it suitable for PCB wire-ended installation. It features a rapid switching response from a low resistance to a very high resistance state within 20 seconds of a fault condition, effectively preventing damage to circuit components.

The fuse dissipates 4.2 watts of power and is capable of operating safely in ambient temperatures ranging from -40°C to 60°C. It complies with rigorous industry standards including CSA, UL, CQC, TUV, and RoHS, ensuring both electrical reliability and environmental safety.

Its automatic reset capability means it can perform thousands of resets without requiring replacement or maintenance, ideal for security systems, power supplies, transformers, automotive systems, medical devices, instrumentation, control systems, computers, audio visual, and telecommunications equipment.

Key features include a trip current of 18 A, minimum resistance of 0.005 Ω, and maximum resistance of 20 mΩ, ensuring precise and reliable circuit protection. The radial lead orientation facilitates easy integration onto PCBs.

This resettable fuse features a radial lead orientation for easy PCB mounting. It has a trip current of 18 A and a hold current of 9 A ensuring reliable circuit protection. The fuse operates within a temperature range of -40°C to 60°C.

Power dissipation is rated at 4.2 watts to maintain safety during overload conditions. Its compact dimensions measure 24.1mm length, 29mm height, and 3mm width. The fuse resets automatically after fault correction without requiring maintenance.

It meets CSA, UL, CQC, TUV, and RoHS safety and environmental standards. Suitable for applications in security systems, power supplies, automotive, medical equipment, instrumentation, and telecommunications. This fuse provides rapid switching from low resistance state to high resistance state during electrical overload or short circuit.

Designed for long-term durability with thousands of automatic resets possible. Explore more Resettable Fuses and protective electrical components in the Electronics & Electricals category at EnvMart for reliable circuit protection solutions.