Why Choose the Mersen J080393 High-Speed Miniature Fuse?
The Mersen J080393, also identified by the catalogue number MI6FA40V1P, is a compact high-speed semiconductor miniature fuse designed to protect sensitive electronic components against overcurrent and short-circuit faults. It forms part of Mersen’s FA and FB range of miniature fuse-links for industrial electronics, power conversion equipment and automation systems.
Its very fast-acting FA characteristic enables the fuse to interrupt excessive current rapidly, helping to limit the electrical energy transmitted to semiconductor devices and associated circuitry. This reduces thermal and electrical stress on protected components, improving equipment reliability and helping prevent costly damage.
With a rated current of 1 A, a rated voltage of 400 V AC and a compact 6.3 × 32 mm cylindrical format, the J080393 is suitable for installation in space-restricted industrial equipment. An integrated striker indicator assists with fuse-status indication and can support compatible signalling arrangements.
Key Advantages
- Very fast-acting FA characteristic for semiconductor protection.
- 1 A rated current for sensitive electronic circuits.
- 400 V AC voltage rating for industrial equipment.
- Compact 6.3 × 32 mm cylindrical cartridge format.
- Integrated striker assists with identifying an operated fuse.
- Very high breaking capacity supports dependable fault interruption.
Key Features
- Mersen FA semiconductor miniature fuse series.
- Catalogue number: MI6FA40V1P.
- 1 A rated current.
- 400 V AC rated voltage.
- High-speed, very fast-acting operating characteristic.
- Integrated striker trip indicator.
- Ferrule terminals for compatible fuse clips and holders.
- RoHS-compliant construction.
Fast Protection for Sensitive Semiconductor Components
Semiconductor devices such as diodes, thyristors and triacs can be damaged rapidly when exposed to excessive current. The Mersen J080393 uses a high-speed fuse element to disconnect the circuit quickly, helping to minimise fault energy and protect sensitive power electronic components.
Its compact cartridge format allows straightforward installation in compatible fuse clips and holders within control panels, converters and electronic assemblies. The integrated striker provides a practical indication after operation, helping maintenance personnel locate faults and replace the affected fuse efficiently.
Typical Applications
- Semiconductor converter protection.
- Diode, thyristor and triac circuits.
- Industrial control and automation equipment.
- Electronic power supplies and control modules.
- Power conversion and rectifier equipment.
- Instrumentation and electronic assemblies.
