Bourns 0.3 A Resettable Fuse Radial Leaded 60V 0.5W Power Dissipation MF-R030

Bourns MF-R030 Resettable Fuse is a compact and maintenance-free radial leaded component designed for protecting electrical and electronic circuits from excessive currents. Rated at 60V and 0.3 A hold current, it automatically switches from a low resistance state to a high resistance state within 3 seconds when a fault occurs, safely limiting current flow.

This fuse series is constructed with cured flame retardant epoxy polymer material that meets UL 94V-0 standards, ensuring durability and safety in demanding industrial environments. The radial lead orientation with 0.51 mm lead diameter allows for straightforward PCB wire-ended mounting in automated assembly applications.

Its key technical attributes include a 40 A current rating, low minimum resistance of 0.76 Ω, and a maximum resistance of 2.1 Ω. It operates reliably within a temperature range of -40°C up to 85°C, with a modest power dissipation of 0.5 W. This performance ensures reliable protection in applications such as security systems, power supplies, power switching devices, automotive and medical equipment, instrumentation, control systems, computers, peripherals, audio visual and telecommunications equipment.

The MF-R030 series fuses are UL, CSA, and TUV certified, providing assurance of safety compliance. Their automatic reset feature eliminates the need for fuse replacement, greatly reducing maintenance and downtime.

Automatically resets thousands of times without replacement. Radial leaded design with 0.51 mm lead diameter for easy PCB mounting. Rated current 40 A with fast trip time of 3 seconds. Compact size: 7.4 mm length, 13.4 mm height, and 3.1 mm width.

Power dissipation rated at 0.5 W under nominal conditions. Flame retardant epoxy polymer material meets UL 94V-0. Application versatility across security, medical, instrumentation, computing, and telecom sectors.

This product is ideal for industrial, laboratory, manufacturing, HVAC, electrical, and scientific environments requiring reliable resettable circuit protection. It is an essential component in modern electronic designs requiring fast, automatic fault clearing combined with easy reset and maintenance-free operation.

Explore more Bourns fuses and circuit protection devices in EnvMart's dedicated Electronics & Electricals category.