Why Choose the Mersen X078887 High-Speed Miniature Fuse?
The Mersen X078887, catalogue number MI6FA50V0.04, is an ultra-fast semiconductor miniature fuse designed to protect highly sensitive electronic components, semiconductor devices and industrial control circuits against damaging overcurrents and short circuits.
With a rated current of 0.04 A and a rated operating voltage of 500 V AC, the X078887 is suitable for precision low-current circuits operating at comparatively high voltages. Its super-fast FA characteristic enables rapid fault interruption, helping to minimise the electrical and thermal energy passed to vulnerable components.
The fuse features a compact 6.3 × 32 mm ceramic cartridge body with metal ferrule end caps for installation in compatible clip-mounted fuse holders. Its exceptional 200 kA breaking capacity provides dependable fault-current interruption for instrumentation, industrial electronics and semiconductor-based equipment.
Key Advantages
- Ultra-fast fuse designed for sensitive semiconductor and electronic circuit protection.
- 0.04 A rated current for precision low-current applications.
- 500 V AC rated voltage for higher-voltage electronic circuits.
- Super-fast operating characteristic helps limit damaging fault energy.
- Compact 6.3 × 32 mm ceramic cartridge format.
- Exceptional 200 kA breaking capacity.
- Ferrule terminals provide secure installation in compatible fuse holders.
- Clip mounting enables straightforward replacement during maintenance.
- Suitable for operation on 50 and 60 Hz electrical systems.
Key Features
- Mersen FA 500 V semiconductor miniature fuse range.
- Catalogue number: MI6FA50V0.04.
- 0.04 A rated current.
- 500 V AC rated voltage.
- Ultra-fast FA operating characteristic.
- 6.3 × 32 mm cylindrical fuse size.
- Ceramic body for reliable thermal and electrical performance.
- Metal ferrule end-cap construction.
- Clip mounting in a compatible miniature fuse holder.
- 200 kA rated breaking capacity.
Ultra-Fast Protection for Sensitive Electronic Equipment
Semiconductor devices can be damaged by very small amounts of excess fault energy. The Mersen X078887 uses an ultra-fast operating characteristic to interrupt abnormal currents rapidly, helping to protect sensitive electronic components before excessive heat can develop.
Its high voltage rating, ceramic construction and exceptional breaking capacity make it suitable for demanding industrial applications where safe fault isolation and precise low-current protection are essential.
Typical Applications
- Semiconductor device protection.
- Industrial instrumentation and measuring equipment.
- Electronic control and monitoring circuits.
- Power conversion and rectifier equipment.
- Industrial automation systems.
- Laboratory and test equipment.
- High-voltage, low-current electronic circuits.
- OEM machinery and specialised electronic assemblies.
