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MERSEN FUSE 250V FA 3,15A 5.20 AL MI5FAP25V3,15
Mersen W208261 MI5FAP25V3.15 high-speed semiconductor miniature fuse with a 3.15 A current rating, 250 V AC voltage rating, FA characteristic and axial leads.
£2.61
Why Choose the Mersen W208261 High-Speed Miniature Fuse?
The Mersen W208261, catalogue number MI5FAP25V3.15, is a high-speed semiconductor miniature fuse designed to provide exceptionally fast overcurrent protection for sensitive semiconductor devices, industrial electronics and power conversion equipment. Part of Mersen's 5 × 20 mm FA 250 V miniature fuse range with axial leads, it combines rapid fault interruption with convenient PCB and electronic assembly mounting.
With a rated current of 3.15 A and a rated operating voltage of 250 V AC, the W208261 is suitable for protecting instrumentation, power supplies, converters, inverters and automation equipment. Its very fast FA operating characteristic minimises fault energy, helping to safeguard valuable semiconductor components from damage.
The fuse features a robust 5 × 20 mm ceramic body with axial wire leads for direct solder mounting onto printed circuit boards and compact electronic assemblies. A 10 kA minimum interrupting rating together with low I²t values provides dependable protection in demanding electronic applications.
Key Advantages
- Designed for semiconductor and sensitive electronic circuit protection.
- 3.15 A rated current for industrial electronic applications.
- 250 V AC rated voltage.
- Ultra-fast FA operating characteristic.
- Axial leads simplify PCB mounting and electronic assembly.
- Compact 5 × 20 mm ceramic cartridge.
- 10 kA minimum interrupting rating.
- Low I²t values help minimise damage to semiconductor devices.
- UL recognised and RoHS compliant.
Key Features
- Mersen 5 × 20 mm FA 250 V axial lead semiconductor fuse series.
- Catalogue number: MI5FAP25V3.15.
- 3.15 A rated current.
- 250 V AC rated voltage.
- High-speed FA operating characteristic.
- Ceramic fuse body with axial wire leads.
- Direct PCB solder mounting.
- Pre-arcing I²t: 2.46 A²s.
- Clearing I²t: 5.5 A²s.
- Designed for semiconductor protection applications.
Reliable Protection for Semiconductor Equipment
The Mersen W208261 is specifically engineered to protect semiconductor devices where rapid fault clearance is essential. Its very fast FA characteristic and low I²t performance help minimise the energy released during fault conditions, reducing the risk of damage to sensitive electronic components.
The axial lead construction allows direct integration into printed circuit boards and electronic assemblies, while the ceramic body provides excellent thermal stability and electrical insulation for dependable long-term performance.
Typical Applications
- Semiconductor protection.
- Industrial electronic equipment.
- Power supplies.
- Automation and control systems.
- Instrumentation equipment.
- Printed circuit board assemblies.
- Power conversion equipment.
- OEM electronic machinery.
Technical Specifications
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| Current | 3.15 A | |
|---|---|---|
| Voltage | 250 V | |
| Device Type | Fuse link | |
| Fuse Type | Miniature, Semiconductor | |
| Fuse Size | 5x20 mm | |
| Manufacturer | Mersen | |
| Item number | W208261 | |
| Catalogue number | MI5FAP25V3.15 | |
| Product type | High-speed semiconductor miniature fuse | |
| Series | 5 × 20 mm FA 250 V Axial Lead | |
| Rated current | 3.15 A | |
| Rated voltage | 250 V AC | |
| Current type | AC | |
| Characteristic | High speed (FA) | |
| Fuse size | 5 × 20 mm | |
| Mounting type | Axial leads | |
| Terminal type | Axial wire leads | |
| Body material | Ceramic | |
| Minimum interrupting rating | 10 kA | |
| Pre-arcing I²t | 2.46 A²s | |
| Clearing I²t | 5.5 A²s | |
| EAN | 3605340209099 | |
| UL recognised | Yes | |
| RoHS compliant | Yes |
Frequently Asked Questions
What is the Mersen W208261 used for?
The W208261 protects semiconductor devices and sensitive electronic equipment against overcurrent and short-circuit faults.
What is the current rating of the W208261?
This fuse has a rated current of 3.15 A.
What voltage is the fuse rated for?
The Mersen W208261 is rated for operation at up to 250 V AC.
How is the Mersen W208261 mounted?
The fuse features axial wire leads, allowing direct solder mounting onto printed circuit boards and electronic assemblies.
What type of operating characteristic does it have?
The fuse features a high-speed FA characteristic, providing rapid protection for sensitive semiconductor devices and electronic circuits.
Trusted by Electrical and Automation Professionals
Mersen high-speed miniature semiconductor fuses are trusted worldwide by electronic equipment manufacturers, machine builders and automation engineers to provide dependable protection for sensitive semiconductor and power electronic applications.
