Why Choose the Mersen W208146 High-Speed Miniature Fuse?
The Mersen W208146, catalogue number MI6FAP25V0.63, is a high-speed semiconductor miniature fuse designed to provide rapid overcurrent protection for sensitive semiconductor devices, power electronic equipment and industrial control systems. As part of Mersen's 6.3 × 32 mm FA 250 V miniature fuse range with axial leads, it delivers exceptionally fast fault interruption while allowing convenient PCB and electronic assembly mounting.
With a rated current of 0.63 A and a rated operating voltage of 250 V AC, the W208146 is ideal for protecting instrumentation, power supplies, converters, inverters and other semiconductor-based equipment. Its fast FA characteristic helps minimise fault energy, reducing the risk of damage to valuable electronic components.
The fuse features a durable 6.3 × 32 mm ceramic cartridge with axial wire leads for direct soldering into printed circuit boards and electronic assemblies. Its 10 kA minimum interrupting rating and low I²t values provide dependable protection in demanding industrial and electronic applications.
Key Advantages
- Designed for semiconductor and sensitive electronic circuit protection.
- 0.63 A rated current for precision electronic applications.
- 250 V AC rated voltage.
- Ultra-fast FA operating characteristic.
- Axial leads simplify PCB mounting and electronic assembly.
- Compact 6.3 × 32 mm ceramic cartridge.
- 10 kA minimum interrupting rating.
- Low I²t values help minimise damage to semiconductor devices.
- UL recognised and RoHS compliant.
Key Features
- Mersen 6.3 × 32 mm FA 250 V axial lead semiconductor fuse series.
- Catalogue number: MI6FAP25V0.63.
- 0.63 A rated current.
- 250 V AC rated voltage.
- High-speed FA operating characteristic.
- Ceramic fuse body with axial wire leads.
- Direct PCB solder mounting.
- Pre-arcing I²t: 0.12 A²s.
- Clearing I²t: 0.24 A²s.
- Designed for semiconductor protection applications.
Reliable Protection for Semiconductor Equipment
The Mersen W208146 is specifically engineered to protect semiconductor devices where rapid fault clearance is essential. Its very fast FA characteristic and low I²t performance help minimise the energy released during fault conditions, reducing the risk of damage to sensitive electronic components.
The axial lead construction allows direct integration into printed circuit boards and electronic assemblies, while the ceramic body provides excellent thermal stability and electrical insulation for dependable long-term performance.
Typical Applications
- Semiconductor protection.
- Industrial electronic equipment.
- Power supplies.
- Automation and control systems.
- Instrumentation equipment.
- Printed circuit board assemblies.
- Power conversion equipment.
- OEM electronic machinery.
