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MERSEN FUSE 250V FA 0,315A 5.20 AL MI5FAP25V0,315
Mersen K208251 MI5FAP25V0.315 very fast-acting semiconductor fuse rated at 0.315 A and 250 V AC with axial leads for PCB mounting.
£2.61
Why Choose the Mersen K208251 MI5FAP25V0.315 Semiconductor Fuse?
The Mersen K208251, catalogue reference MI5FAP25V0.315, is a compact very fast-acting semiconductor protection fuse designed to protect sensitive electronic components against overloads and short-circuit faults. Its FA operating characteristic rapidly interrupts fault currents, helping minimise thermal and electrical stress on semiconductor devices.
Part of the Mersen 5 × 20 mm FA 250 V miniature fuse series with axial leads, the K208251 combines a ceramic cartridge body with axial wire terminations, making it ideal for direct PCB mounting or soldered installation within compact electronic assemblies.
With a rated current of 0.315 A, a 250 V AC voltage rating and a 10 kA breaking capacity, the Mersen K208251 delivers dependable protection for industrial controls, instrumentation, power supplies and other electronic equipment requiring rapid fault clearance.
Key Advantages
- Very fast-acting semiconductor protection fuse.
- 0.315 A rated current for sensitive electronic circuits.
- 250 V AC rated voltage.
- Compact 5 × 20 mm ceramic cartridge.
- Axial leads allow direct PCB soldering.
- 10 kA breaking capacity for dependable fault interruption.
Key Features
- Mersen MI5FAP semiconductor miniature fuse series.
- Catalogue number: MI5FAP25V0.315.
- 0.315 A rated current.
- 250 V AC rated voltage.
- Very fast-acting FA operating characteristic.
- Axial lead mounting for PCB installation.
- Ceramic cartridge construction.
- Designed for semiconductor and sensitive electronic circuit protection.
Reliable Protection for PCB-Mounted Electronics
The Mersen K208251 is engineered to interrupt fault currents extremely quickly, helping protect semiconductors, integrated circuits and sensitive electronic assemblies from damage caused by overloads and short circuits. Its ceramic construction and high interrupting rating provide dependable protection in demanding industrial environments.
The axial lead design enables direct soldering to printed circuit boards or electronic assemblies, making the fuse suitable for compact equipment where conventional fuse holders are not practical while still providing a replaceable, high-performance protection solution.
Typical Applications
- Semiconductor device protection.
- Printed circuit board assemblies.
- Industrial electronic equipment.
- Electronic power supplies.
- Instrumentation and measuring equipment.
- Automation and OEM control modules.
Technical Specifications
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| Current | 0.315 A | |
|---|---|---|
| Voltage | 250 V | |
| Device Type | Fuse link | |
| Fuse Type | Semiconductor | |
| Fuse Class | Fast acting | |
| Manufacturer | Mersen | |
| Series | Semiconductor Miniature Fuses Size 5 × 20 FA 250 V AL | |
| Model | K208251 | |
| Catalogue number | MI5FAP25V0.315 | |
| Product type | High-speed semiconductor cartridge fuse | |
| Rated current | 0.315 A | |
| Rated voltage | 250 V AC | |
| Current type | AC | |
| Operating characteristic | Very fast acting FA | |
| Breaking capacity | 10 kA | |
| Pre-arcing I²t | 0.016 A²s | |
| Total clearing I²t | 0.045 A²s | |
| Fuse dimensions | 5 × 20 mm | |
| Mounting type | Axial leads | |
| Connection type | Soldered connection | |
| Body material | Ceramic | |
| EAN / UPC | 3605340208986 | |
| RoHS compliant | Yes |
Frequently Asked Questions
What is the Mersen K208251 used for?
The K208251 is a very fast-acting semiconductor fuse designed to protect sensitive electronic and semiconductor circuits against overloads and short-circuit faults.
What is the current rating of the K208251?
The Mersen K208251 has a rated current of 0.315 A.
What voltage is this fuse rated for?
The fuse has a rated operating voltage of 250 V AC.
How is the Mersen K208251 installed?
The K208251 features axial leads for direct soldering onto printed circuit boards or electronic assemblies.
What is the breaking capacity of the K208251?
The fuse offers a 10 kA breaking capacity, providing reliable interruption of high fault currents when correctly applied.
Trusted for High-Speed Electronic Protection
Mersen semiconductor miniature fuses are trusted by electrical engineers, OEM manufacturers and industrial automation specialists for delivering dependable protection to sensitive electronic and semiconductor equipment.
