Why Choose the Mersen R080469 High-Speed Semiconductor Fuse?
The Mersen R080469, catalogue reference MI5SB25V0.05, is a compact high-speed semiconductor protection fuse engineered to provide rapid protection against overcurrents and short circuits in sensitive electronic equipment. Part of Mersen's proven 5 × 20 mm SB miniature fuse range, it is designed for applications where extremely fast fault interruption is essential to safeguard semiconductor devices.
Its SB ultra fast-acting characteristic minimises the thermal and electrical energy transferred to protected components during fault conditions. This makes the fuse ideal for protecting diodes, thyristors, IGBTs, MOSFETs, rectifiers and other semiconductor devices used in industrial electronics and power conversion equipment.
With a rated current of 0.05 A and a rated voltage of 250 V AC, the R080469 provides precise protection for very low-current electronic circuits. Its compact 5 × 20 mm ceramic body allows installation in compatible miniature fuse holders used throughout industrial and commercial electronic equipment.
Key Advantages
- Ultra fast SB semiconductor protection fuse.
- 0.05 A current rating for sensitive low-current circuits.
- 250 V AC rated voltage.
- Compact 5 × 20 mm ceramic cartridge.
- Rapid fault interruption helps protect semiconductor devices.
- Suitable for industrial electronics and power conversion equipment.
Key Features
- Mersen MI5SB25V0.05 semiconductor miniature fuse.
- 0.05 A rated current.
- 250 V AC rated voltage.
- SB ultra fast-acting characteristic.
- 5 × 20 mm ceramic body.
- Breaking capacity of 4 kA.
- Pre-arcing I²t of 0.00029 A²s.
- Clearing I²t of 0.00082 A²s.
Reliable Protection for Sensitive Semiconductor Circuits
Modern semiconductor devices can fail rapidly when exposed to excessive fault current. High-speed SB fuses are specifically designed to interrupt faults before damaging levels of heat and energy reach protected components, helping maximise equipment reliability and minimise downtime.
The compact ceramic construction and low current rating make the Mersen R080469 particularly suitable for protecting delicate electronic assemblies, instrumentation and industrial control equipment where precise overcurrent protection is essential.
Typical Applications
- Semiconductor protection.
- Power electronic circuits.
- Industrial control equipment.
- Electronic power supplies.
- Instrumentation and measurement systems.
- Printed circuit board assemblies.
