Why Choose the Mersen Z084202 Miniature Semiconductor Fuse?
The Mersen Z084202 is a compact 6.3 × 32 mm high-speed semiconductor fuse designed to protect sensitive electronic components and power-semiconductor devices against damaging overcurrent and short-circuit faults. Also identified by catalogue number MI6FA50V0.25, it has a rated current of 0.25 A and a rated voltage of 500 V AC.
Part of the Mersen FA miniature semiconductor fuse series, the Z084202 features a very fast-acting characteristic that interrupts abnormal currents before excessive fault energy reaches the protected equipment. This rapid response helps minimise thermal and electrical stress on diodes, thyristors, rectifiers, converters and precision electronic circuits.
The fuse is manufactured with a durable ceramic insulating body and ferrule terminals for installation in compatible clip-mounted fuse holders. Its compact construction, low let-through energy and 200 kA minimum breaking capacity make it suitable for demanding industrial automation, instrumentation, power electronics and OEM applications.
Key Advantages
- High-speed protection for sensitive semiconductor devices.
- 0.25 A rated current for low-current electronic circuits.
- 500 V AC rated voltage.
- Compact 6.3 × 32 mm ceramic cartridge.
- 200 kA minimum breaking capacity for dependable fault interruption.
- Clip-mounted format supports straightforward installation and replacement.
Key Features
- Mersen FA miniature semiconductor fuse series.
- Item number: Z084202.
- Catalogue number: MI6FA50V0.25.
- 0.25 A rated current.
- 500 V AC rated voltage.
- Very fast-acting FA operating characteristic.
- 6.3 × 32 mm cylindrical cartridge.
- Ceramic insulating body.
- Ferrule terminals for clip mounting.
- RoHS-compliant construction.
High-Speed Protection for Sensitive Electronic Components
Semiconductor components can suffer permanent damage when excessive fault energy passes through a circuit. High-speed fuses interrupt abnormal currents rapidly, helping limit peak current, thermal stress and the total electrical energy transferred to sensitive devices.
The Mersen Z084202 combines low-current protection with a high voltage rating and exceptionally high breaking capacity. When correctly coordinated with the protected circuit, it helps improve equipment reliability and reduce damage during overload and short-circuit conditions.
Typical Applications
- Semiconductor protection circuits.
- Industrial power supplies and converters.
- Diode, thyristor and rectifier protection.
- Automation and electronic control equipment.
- Instrumentation and monitoring systems.
- OEM electrical and electronic assemblies.
