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MERSEN FUSE 250V FA 5A 5.20 AL MI5FAP25V5
Mersen Y208263 high-speed miniature semiconductor fuse, catalogue number MI5FAP25V5, rated 5 A and 250 V AC with a 5 × 20 mm ceramic body and axial leads.
£2.61
Why Choose the Mersen Y208263 Miniature Semiconductor Fuse?
The Mersen Y208263 is a compact 5 × 20 mm high-speed semiconductor fuse designed to provide rapid protection for sensitive electronic components and semiconductor devices against damaging overcurrent and short-circuit faults. Also identified by catalogue number MI5FAP25V5, it has a rated current of 5 A and a rated voltage of 250 V AC.
Part of the Mersen FA miniature semiconductor fuse series, the Y208263 features a very fast-acting characteristic that rapidly interrupts abnormal currents before excessive electrical energy reaches protected components. This helps minimise thermal stress on diodes, thyristors, converters, rectifiers and precision electronic equipment.
The fuse incorporates axial leads for direct soldering onto printed circuit boards or installation within electronic assemblies. Its ceramic body, compact construction and 10 kA minimum interrupting rating make it ideal for industrial automation, power electronics, instrumentation and OEM equipment.
Key Advantages
- High-speed protection for sensitive semiconductor devices.
- 5 A rated current for electronic and power-control circuits.
- 250 V AC rated voltage.
- Compact 5 × 20 mm ceramic fuse body.
- Axial leads support direct printed circuit board integration.
- 10 kA minimum interrupting rating for dependable fault clearance.
Key Features
- Mersen FA miniature semiconductor fuse series.
- Item number: Y208263.
- Catalogue number: MI5FAP25V5.
- 5 A rated current.
- 250 V AC rated voltage.
- High-speed FA operating characteristic.
- 5 × 20 mm cylindrical ceramic body.
- Axial-lead mounting configuration.
- Soldered electrical connections.
- RoHS-compliant construction.
High-Speed Protection for Sensitive Electronic Components
Semiconductor devices can be permanently damaged when excessive fault energy passes through a circuit. High-speed fuses interrupt abnormal currents rapidly, helping limit peak current, thermal stress and the total electrical energy transferred to sensitive components.
The Mersen Y208263 combines compact semiconductor protection with axial-lead mounting for direct integration into printed circuit boards and electronic assemblies. When correctly coordinated with the protected equipment, it helps improve reliability and reduce damage during overload and short-circuit conditions.
Typical Applications
- Printed circuit board assemblies.
- Semiconductor protection circuits.
- Industrial power supplies and converters.
- Automation and electronic control equipment.
- Instrumentation and monitoring systems.
- OEM electrical and electronic products.
Technical Specifications
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| Current | 5 A | |
|---|---|---|
| Voltage | 250 V | |
| Device Type | Fuse link | |
| Fuse Type | Miniature, Semiconductor | |
| Fuse Size | 5x20 mm | |
| Manufacturer | Mersen | |
| Series | Semiconductor Miniature Fuses Size 5 × 20 FA/FB 250 V AC | |
| Model | Y208263 | |
| Catalogue number | MI5FAP25V5 | |
| Product type | Miniature semiconductor fuse | |
| Fuse format | Cylindrical cartridge with axial leads | |
| Fuse size | 5 × 20 mm | |
| Rated current | 5 A | |
| Rated voltage | 250 V AC | |
| Electrical system | AC | |
| Speed / characteristic | High speed | |
| Design characteristic | FA | |
| Mounting type | Axial leads | |
| Connection type | Soldered connection | |
| Minimum interrupting rating | 10 kA | |
| Melting I²t | 11 A²s | |
| Clearing I²t at rated voltage | 25 A²s | |
| Body / insulating material | Ceramic | |
| Product diameter | Approx. 5.5 mm | |
| Overall product length | Approx. 76 mm | |
| Product weight | Approx. 0.0015 kg | |
| EAN / UPC | 3605340209112 | |
| RoHS compliant | Yes | |
| Manufacturer sell-pack quantity | 2,000 pieces |
Frequently Asked Questions
What is the Mersen Y208263 used for?
The Y208263 is a high-speed miniature fuse designed to protect sensitive semiconductor devices and electronic circuits against damaging overcurrent and short-circuit faults.
What are the electrical ratings of the Y208263?
The fuse has a rated current of 5 A and a rated voltage of 250 V AC.
What size is the Mersen Y208263?
The fuse body uses a 5 × 20 mm cylindrical cartridge format, with an overall axial-lead length of approximately 76 mm.
How is the Y208263 installed?
The fuse has axial leads designed for soldered connection directly onto a printed circuit board or within a compatible electronic assembly.
What is the interrupting rating of this fuse?
The Mersen Y208263 has a minimum interrupting rating of 10 kA.
Trusted by Electronics and Electrical Professionals
Mersen miniature semiconductor fuses are trusted by equipment manufacturers, automation engineers and maintenance professionals for rapid fault interruption and dependable protection of sensitive electronic systems.
