Why Choose the Mersen X084016 High-Speed Miniature Fuse?
The Mersen X084016, catalogue reference MI5FA25V0.63, is a compact high-speed semiconductor protection fuse designed to safeguard sensitive electronic components against damaging overcurrents and short circuits. It belongs to Mersen’s 5 × 20 mm FA miniature fuse range and is suitable for use in electronic, measurement and industrial control equipment.
Its very fast-acting FA characteristic enables the fuse to interrupt fault currents rapidly, helping limit the energy passed to vulnerable semiconductor devices. This makes the X084016 particularly suitable for protecting diodes, thyristors, triacs, converters and associated power electronic components where conventional general-purpose fuses may not respond quickly enough.
Rated at 0.63 A and 250 V AC, the Mersen X084016 combines a compact ceramic body with a high 10 kA breaking capacity. Its standard 5 × 20 mm ferrule construction and clip-mounting format allow straightforward installation within compatible fuse holders and electronic assemblies.
Key Advantages
- Very fast-acting FA fuse characteristic for sensitive semiconductor protection.
- 0.63 A current rating for low-current electronic circuits.
- 250 V AC rated voltage suitable for a wide range of control applications.
- High 10 kA breaking capacity for dependable interruption of fault currents.
- Compact 5 × 20 mm ceramic cartridge construction.
- Low I²t values help reduce thermal and electrical stress on protected components.
Key Features
- Mersen X084016 semiconductor protection fuse.
- Catalogue number MI5FA25V0.63.
- 0.63 A rated current.
- 250 V AC IEC rated voltage.
- Very fast-acting FA speed characteristic.
- 10 kA minimum interrupting rating.
- 0.12 A²s melting I²t.
- 0.35 A²s clearing I²t at rated voltage.
- Ceramic body with ferrule terminals.
- Clip-mounted 5 × 20 mm cartridge format.
Fast Protection for Sensitive Electronic Components
Semiconductor devices can be damaged by short-duration fault currents that may not operate a standard fuse quickly enough. High-speed fuses such as the Mersen X084016 are engineered with low melting and clearing I²t values, helping minimise the amount of fault energy transferred to the protected circuit.
The ceramic body and high breaking capacity provide dependable containment and interruption of fault currents. Its compact cartridge format makes it well suited to control boards, power conversion equipment, measuring instruments and other installations where space-efficient protection is required.
Typical Applications
- Semiconductor converters and power electronic circuits.
- Diode, thyristor and triac protection.
- Industrial measuring and control equipment.
- Electronic power supplies and control boards.
- Automation and instrumentation systems.
- Low-current equipment requiring fast fault interruption.
