Why Choose the Mersen N208139 High-Speed Fuse?
The Mersen N208139, catalogue number MI6FAP25V0.125, is a compact high-speed miniature fuse with axial leads designed to protect sensitive semiconductor devices and electronic components against damaging overcurrents and short circuits. Its very fast-acting FA characteristic provides rapid fault interruption, helping to limit the electrical and thermal energy reaching protected circuitry.
Rated at 0.125 A and 250 V AC, the N208139 is suitable for low-current electronic circuits, industrial automation equipment and semiconductor applications where conventional general-purpose fuses may not respond quickly enough. Its standard 6.3 × 32 mm miniature cartridge format provides dependable protection within compact electrical assemblies.
The integrated axial leads allow the fuse to be soldered directly onto printed circuit boards or connected to other components without requiring a separate fuse holder. Manufactured as part of Mersen’s semiconductor miniature fuse range, the N208139 offers reliable high-speed protection for OEM equipment, control electronics and power conversion systems.
Key Advantages
- Very fast-acting FA characteristic for semiconductor protection.
- 0.125 A current rating for sensitive low-current circuits.
- 250 V AC voltage rating for electronic equipment.
- Compact 6.3 × 32 mm miniature cartridge format.
- Axial leads enable direct installation onto printed circuit boards.
- Very high breaking capacity supports dependable fault interruption.
Key Features
- Mersen semiconductor miniature fuse range.
- MI6FAP25V0.125 catalogue reference.
- 0.125 A rated current.
- 250 V AC rated voltage.
- High-speed FA operating characteristic.
- 6.3 × 32 mm cartridge dimensions.
- Axial lead mounting for direct soldered connections.
- Designed for sensitive electronic and semiconductor components.
Fast Protection for Sensitive Electronic Components
Semiconductor devices can be damaged by overcurrent events that develop before standard fuses have time to operate. The Mersen N208139 uses a high-speed FA characteristic to interrupt fault currents rapidly, reducing the amount of damaging energy passed through to sensitive components.
Its axial lead construction allows direct integration into printed circuit boards and compact electronic assemblies. This helps simplify installation while providing dependable protection for industrial controls, power electronics and OEM equipment where reliable operation is essential.
Typical Applications
- Semiconductor device protection.
- Printed circuit boards.
- Industrial electronic control circuits.
- Automation and monitoring equipment.
- Power supplies and conversion electronics.
- OEM electrical and electronic assemblies.
