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MERSEN FUSE 250V FA 3,15 A 5.20 P084009
Mersen P084009 MI5FA25V3.15 high-speed 5 × 20 mm ceramic miniature fuse rated at 3.15 A and 250 V AC for semiconductor and sensitive electronic circuit protection.
£1.92
Why Choose the Mersen P084009 High-Speed Miniature Fuse?
The Mersen P084009, also identified as MI5FA25V3.15, is a compact 5 × 20 mm high-speed miniature fuse developed to provide rapid overcurrent and short-circuit protection for sensitive electronic components. Its very fast-acting FA operating characteristic makes it particularly suitable for semiconductor devices, measuring equipment and industrial control circuits.
With a rated current of 3.15 A and a rated voltage of 250 V AC, the P084009 delivers dependable protection in applications where conventional general-purpose fuses may respond too slowly. Its ceramic cartridge construction helps provide reliable arc containment and consistent interruption performance during electrical faults.
The standard 5 × 20 mm clip-mounted format allows straightforward installation in compatible fuse holders, printed circuit board assemblies and electrical equipment. This makes the Mersen P084009 a practical choice for OEM machinery, power electronics, instrumentation and automation systems requiring fast protection for vulnerable components.
Key Advantages
- Very fast-acting FA fuse characteristic for sensitive electronic components.
- 3.15 A current rating for low-power electrical and electronic circuits.
- 250 V AC voltage rating.
- Compact 5 × 20 mm cartridge format.
- Ceramic construction supports reliable fault interruption.
- Suitable for semiconductor, measurement and control equipment.
Key Features
- Mersen semiconductor miniature fuse range.
- Manufacturer reference: P084009.
- Product reference: MI5FA25V3.15.
- 3.15 A rated current.
- 250 V AC rated voltage.
- 5 × 20 mm fuse dimensions.
- High-speed, very fast-acting FA characteristic.
- Clip mounting for compatible fuse holders.
Rapid Protection for Sensitive Electronic Components
High-speed miniature fuses are designed to interrupt excessive current rapidly before vulnerable electronic components are damaged. Their fast response makes them particularly useful for semiconductor devices, power conversion circuits, instrumentation and control systems with limited tolerance for overload energy.
The Mersen P084009 combines a very fast-acting fuse characteristic with a compact ceramic cartridge design. This enables reliable integration into electronic assemblies and industrial equipment while helping reduce damage, maintenance requirements and unplanned equipment downtime.
Typical Applications
- Semiconductor device protection.
- Industrial measuring and control equipment.
- Power supplies and power conversion circuits.
- Electronic instrumentation.
- Automation and process control systems.
- OEM machinery and electronic assemblies.
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 | |
| Fuse Class | Fast acting | |
| Manufacturer | Mersen | |
| Series | FA/FB Semiconductor Miniature Fuses | |
| Model | P084009 | |
| Manufacturer reference | MI5FA25V3.15 | |
| Product type | High-speed miniature cartridge fuse | |
| Rated current | 3.15 A | |
| Rated voltage | 250 V AC | |
| Fuse size | 5 × 20 mm | |
| Operating characteristic | Very fast-acting, FA | |
| Body material | Ceramic | |
| Mounting type | Clip mounting | |
| Primary protection | Semiconductor and sensitive electronic circuits |
Frequently Asked Questions
What is the Mersen P084009 used for?
The P084009 provides very fast overcurrent and short-circuit protection for semiconductor devices, measuring equipment and sensitive electronic circuits.
What is the current rating of the Mersen P084009?
The fuse has a rated current of 3.15 A.
What voltage is the P084009 rated for?
The Mersen P084009 is rated for electrical circuits operating at up to 250 V AC.
What size is this Mersen fuse?
It is a compact miniature cartridge fuse measuring 5 × 20 mm.
What does the FA characteristic mean?
The FA characteristic indicates that the fuse is very fast acting, allowing it to interrupt fault current rapidly and protect sensitive electronic and semiconductor components.
Trusted High-Speed Protection from Mersen
Mersen miniature semiconductor fuses are used by electronic equipment manufacturers, automation engineers and machine builders to provide rapid, dependable protection for sensitive components and industrial control equipment.
