Why Choose the Mersen E095431 Medium Time-Lag Semiconductor Fuse?
The Mersen E095431 is a compact medium time-lag semiconductor protection fuse designed to protect sensitive electronic components and electrical circuits against damaging overcurrents. Also identified by the catalogue number MI5SA40V0.25, it combines dependable fault protection with the ability to tolerate brief inrush and transient currents.
With a rated current of 0.25 A and a rated voltage of 400 V AC, the E095431 is suitable for low-current electronic circuits where temporary current surges may occur during normal operation. Its SA medium time-lag characteristic helps reduce nuisance fuse operation whilst maintaining reliable protection against sustained overloads and short circuits.
The fuse features a compact 5 × 20 mm cartridge format designed for clip mounting in a compatible fuse holder. Its very high breaking capacity and space-efficient construction make it suitable for industrial controls, power supplies, instrumentation and specialist electronic equipment.
Key Advantages
- Medium time-lag characteristic tolerates brief inrush and transient currents.
- 0.25 A current rating for sensitive low-current circuits.
- 400 V AC voltage rating for industrial electronic applications.
- Compact 5 × 20 mm miniature cartridge format.
- Very high breaking capacity for dependable fault interruption.
- Clip-mounted design enables straightforward installation and replacement.
Key Features
- Mersen MI5SA40V0.25 miniature semiconductor fuse.
- 0.25 A rated current.
- 400 V AC rated voltage.
- Medium time-lag SA operating characteristic.
- 5 × 20 mm miniature fuse body.
- Designed for clip mounting in compatible fuse holders.
- Suitable for circuits with inrush or transient current conditions.
- REACH, RoHS, CE and UKCA compliant.
Reliable Protection with Transient Current Tolerance
Medium time-lag fuses are designed to withstand brief current surges that may occur when electronic equipment, transformers or power supplies are energised. This controlled delay helps prevent unnecessary fuse operation whilst ensuring sustained overcurrents and short circuits are safely interrupted.
The Mersen E095431 combines a low current rating with compact dimensions and a very high breaking capacity. Its replaceable clip-mounted format also simplifies inspection and maintenance within industrial electronic equipment.
Typical Applications
- Semiconductor protection circuits.
- Industrial electronic control equipment.
- Power supplies with start-up inrush currents.
- Instrumentation and measuring equipment.
- Automation control systems.
- Monitoring and signalling circuits.
- Power conversion equipment.
- Specialist electronic assemblies.
