Why Choose the Mersen Z208149 Miniature Semiconductor Fuse?
The Mersen Z208149 is a compact 6.3 × 32 mm high-speed semiconductor fuse designed to provide rapid protection for sensitive electronic components and power-semiconductor devices. Also identified by catalogue number MI6FAP25V1.25, it has a rated current of 1.25 A and a rated voltage of 250 V AC.
Part of the Mersen FA miniature semiconductor fuse series, the Z208149 features a very fast-acting characteristic that interrupts abnormal currents before excessive electrical energy reaches protected components. This helps reduce thermal and electrical stress on diodes, thyristors, rectifiers, converters and precision electronic circuits.
The fuse incorporates axial leads for direct soldering onto printed circuit boards or connection within electronic assemblies. Its ceramic body, compact construction and 200 kA minimum interrupting rating make it suitable for industrial automation, power electronics, instrumentation and OEM equipment.
Key Advantages
- High-speed protection for sensitive semiconductor devices.
- 1.25 A rated current for low-current electronic circuits.
- 250 V AC rated voltage.
- Compact 6.3 × 32 mm ceramic fuse body.
- Axial leads support direct printed circuit board integration.
- 200 kA minimum interrupting rating for dependable fault clearance.
Key Features
- Mersen FA miniature semiconductor fuse series.
- Item number: Z208149.
- Catalogue number: MI6FAP25V1.25.
- 1.25 A rated current.
- 250 V AC rated voltage.
- High-speed FA operating characteristic.
- 6.3 × 32 mm cylindrical ceramic body.
- Axial-lead mounting configuration.
- Soldered electrical connections.
- RoHS-compliant construction.
High-Speed Protection for Sensitive Electronic Components
Semiconductor devices 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 components.
The Mersen Z208149 combines very fast semiconductor protection with axial-lead mounting for direct integration into printed circuit boards and electronic assemblies. When correctly coordinated with the protected equipment, it helps improve reliability and reduce damage during overload and short-circuit conditions.
Typical Applications
- Printed circuit board assemblies.
- Semiconductor protection circuits.
- Industrial power supplies and converters.
- Automation and electronic control equipment.
- Instrumentation and monitoring systems.
- OEM electrical and electronic products.
