Bourns 0.55A Resettable Fuse, 60V, 0.9W Power Dissipation, Surface Mount MF-SMDF050-2

Bourns MF-SMDF050-2 is a 0.55 amp resettable fuse optimized for protection of electronic and electrical circuits from excessive current conditions. It has a voltage rating of 60V and a power dissipation of 0.9W, making it suitable for various industrial and commercial electronic applications.

This resettable fuse provides fast tripping with a trip current of 1.2A, switching rapidly from a low resistance to a high resistance state under overload or short circuit conditions. It automatically resets to normal low resistance after fault clearing without requiring replacement, supporting thousands of cycles which reduces maintenance costs.

The surface mount device features a compact footprint (5.44mm length, 4.93mm width, 1.09mm height) and robust electroless nickel immersion gold plated terminals for enhanced durability and solderability. Its operating temperature range (-40°C to 85°C) makes it suitable for harsh environmental conditions.

Its small size eliminates the need for fuse holders, allowing easy integration into modern printed circuit boards. Typical applications include security systems, power supplies, transformers, power switching devices, automotive and medical equipment, instrumentation, control systems, computers, peripherals, audio-visual, and telecommunications equipment.

The product is supplied in reel packaging, size 1812, from the MF-SMDF series, and meets RoHS environmental compliance standards. Operates with a trip current of 1.2A for fast response. Features a low profile surface mount design with dimensions 5.44mm x 4.93mm x 1.09mm.

Holds a rated current of 0.55A providing reliable circuit protection. Capable of automatic reset after fault conditions, supporting thousands of cycles. Constructed with electroless nickel immersion gold plated terminals for durability.

Operates within temperature range -40°C to 85°C ensuring broad application. Power dissipation rating of 0.9W for prolonged device reliability. Complies with RoHS standards for environmental safety.

Suitable for industrial, commercial electronics manufacturing, laboratory instrumentation, HVAC control systems, telecommunications, and automotive electronics. Browse EnvMart for a comprehensive selection of Bourns Resettable Fuses and related circuit protection devices.