Bourns 0.9 A Resettable Fuse 30V, Radial Leaded MF-R090-0-9

Bourns MF-R090-0-9 resettable fuse is a radial leaded electrical protection device rated at 0.9 A hold current and 30V voltage, designed to protect circuits from excessive current damage. Featuring a 7.4 mm length, 12.2 mm height, and 3 mm width, this fuse is built with a cured, flame retardant epoxy polymer meeting UL 94V-0 requirements, ensuring reliable insulation and safety.

The MFR series rapid switch fuse automatically transitions from low resistance to high resistance during electrical overloads or short circuits, resetting itself automatically thousands of times without requiring replacement. Its radial lead design with a 0.51 mm lead diameter allows for straightforward PCB wire-ended mounting.

Designed to maintain performance across a wide temperature range from -40°C up to 85°C, it has a trip current of 1.8A and a hold current of 0.9A, with a maximum resistance of 220 mΩ and a minimum resistance of 0.07 Ω. Power dissipation is rated at 0.6 W, and the product complies with RoHS and UL standards.

This resettable fuse is commonly employed in a variety of industrial and commercial applications including security systems, power supplies, transformers, power switching devices, automotive and medical equipment, instrumentation and control devices, computers and peripherals, as well as audio-visual and telecommunications equipment.

Maintenance-free functionality combined with compact size eliminates the need for fuse holders, enhancing production efficiency and durability. The protection afforded prevents damage and downtime, making it a vital component in both new system designs and retrofit repairs.

Automatically resets itself thousands of times for maintenance-free operation. Rapid switching from low resistance to very high resistance state during faults. Epoxy polymer insulation meets UL 94V-0 flame retardant standard.

Radial leaded design suitable for PCB wire-ended mounting. Wide operating temperature range from -40°C to 85°C. Conforms to RoHS and UL approval standards. Ideal for security systems, power supplies, automotive, instrumentation, and telecommunications.

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