Why Choose the Mersen V078908 MI6SA40V0.63 Miniature Fuse?
The Mersen V078908, catalogue number MI6SA40V0.63, is a compact medium time-lag semiconductor miniature fuse designed to provide dependable overcurrent protection for sensitive electronic components and industrial control equipment. Its SA operating characteristic allows brief current surges to pass while disconnecting the circuit when a sustained overload or short circuit occurs.
With a rated current of 0.63 A and a rated voltage of 400 V AC, the V078908 is suitable for low-current electronic circuits, control apparatus, power conversion equipment and industrial automation systems. Its standard 6.3 x 32 mm cartridge format enables straightforward installation in compatible fuse clips and holders.
The fuse combines a compact design with a very high breaking capacity, helping it safely interrupt significant prospective fault currents. Manufactured by Mersen using high-quality materials, it delivers consistent protection while tolerating the temporary inrush currents commonly encountered during equipment start-up.
Key Advantages
- Medium time-lag protection suitable for circuits with temporary inrush currents.
- 0.63 A rated current for sensitive low-current applications.
- 400 V AC rated voltage for industrial and electronic equipment.
- Very high breaking capacity for reliable fault interruption.
- Helps protect semiconductor devices and control apparatus.
- Standard 6.3 x 32 mm format for convenient replacement.
- Manufactured by Mersen for dependable long-term performance.
Key Features
- Mersen semiconductor miniature fuse range.
- 0.63 A rated current.
- 400 V AC rated voltage.
- Medium time-lag SA operating characteristic.
- Compact 6.3 x 32 mm cartridge construction.
- Clip-mounted installation.
- Designed to tolerate short-duration current surges.
- Suitable for sensitive electronic components and control equipment.
- RoHS, REACH and UKCA declarations available for the product range.
Reliable Protection with Inrush Current Tolerance
Medium time-lag fuses are designed to tolerate brief increases in current that occur when power supplies, transformers and other electrical equipment are energised. This helps prevent unnecessary fuse operation during normal start-up conditions while maintaining reliable protection against sustained overcurrents.
The Mersen V078908 combines an SA time-current characteristic with a very high breaking capacity. This makes it suitable for electronic and industrial control circuits requiring dependable protection without nuisance operation during temporary current surges.
Typical Applications
- Industrial control apparatus.
- Semiconductor protection circuits.
- Electronic power supplies.
- Control transformers.
- Automation and process equipment.
- Instrumentation and measurement systems.
- OEM electronic assemblies.
- Circuits with temporary start-up or inrush currents.
