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MERSEN FUSE 250V FC 1,25A. 5X20 AL MI5FCP25V1,25
Mersen R205037 fast-acting 5 x 20 mm miniature fuse with 1.25 A current rating, 250 V AC rating and axial lead mounting for electronic and semiconductor circuit protection.
£1.12
Why Choose the Mersen R205037 Miniature Fuse?
The Mersen R205037 is a high-performance 5 x 20 mm fast-acting miniature fuse designed to provide rapid overcurrent protection for sensitive electronic circuits and semiconductor devices. Manufactured as part of the trusted Mersen MI5 FC 250V AL series, this fuse combines dependable fault protection with a compact design suitable for a wide range of industrial and electronic equipment.
Featuring a 1.25 A current rating, 250 V AC voltage rating and axial lead mounting, the R205037 offers straightforward PCB installation while delivering fast interruption of overloads and short circuits. Its precision construction helps protect valuable components, minimise downtime and improve equipment reliability.
Designed for applications requiring fast fault clearance, the Mersen R205037 is suitable for industrial controls, instrumentation, power supplies, automation equipment and electronic assemblies where reliable circuit protection is essential.
Key Advantages
- Fast-acting miniature fuse for rapid overcurrent protection.
- 1.25 A current rating for sensitive electronic circuits.
- 250 V AC rated voltage for industrial and electronic applications.
- Compact 5 x 20 mm fuse size.
- Axial leads simplify PCB and equipment installation.
- Manufactured by Mersen for dependable long-term performance.
Key Features
- Manufacturer: Mersen.
- Catalogue number: MI5FCP25V1.25.
- Part number: R205037.
- Fast (F) operating characteristic.
- 1.25 A rated current.
- 250 V AC IEC rated voltage.
- 5 x 20 mm miniature fuse format.
- Axial lead mounting for direct PCB installation.
- RoHS compliant construction.
Reliable Protection for Electronic Equipment
Fast-acting miniature fuses are designed to interrupt fault currents quickly before sensitive electronic components can be damaged. The Mersen R205037 provides dependable protection against overloads and short circuits, helping extend equipment life while reducing maintenance costs.
Its compact dimensions and axial lead design make installation straightforward in printed circuit boards, power supplies, instrumentation and industrial control equipment where space is limited and reliable circuit protection is required.
Typical Applications
- Industrial control panels.
- Electronic power supplies.
- Instrumentation equipment.
- Semiconductor protection circuits.
- Automation and control systems.
- Printed circuit board assemblies.
Technical Specifications
Tick the specs you need, then view products that match.
| Current | 1.25 A | |
|---|---|---|
| Voltage | 250 V | |
| Device Type | Fuse link | |
| Fuse Type | Miniature | |
| Fuse Size | 5x20 mm | |
| Manufacturer | Mersen | |
| Series | MI5 FC 250V AL | |
| Model | R205037 | |
| Catalogue number | MI5FCP25V1.25 | |
| Product type | Fast-acting miniature fuse | |
| Fuse size | 5 x 20 mm | |
| Rated current | 1.25 A | |
| Rated voltage | 250 V AC | |
| Characteristic | Fast (F) | |
| Mounting | Axial leads | |
| Compliance | RoHS | |
| Application | Semiconductor and electronic circuit protection |
Frequently Asked Questions
What is the Mersen R205037 used for?
The R205037 is used to provide fast overcurrent protection for sensitive electronic circuits, semiconductor devices and industrial control equipment.
What is the current rating of this fuse?
This fuse has a 1.25 A current rating.
What voltage is the fuse rated for?
The Mersen R205037 is rated for 250 V AC operation.
Is this a fast or time-delay fuse?
This model is a fast-acting (F) fuse designed to clear faults rapidly.
How is the fuse mounted?
The fuse features axial leads, allowing direct mounting onto printed circuit boards or other electronic assemblies.
Trusted Protection from Mersen
Mersen miniature fuses are trusted worldwide by equipment manufacturers, panel builders and maintenance engineers for delivering reliable circuit protection across industrial, electronic and automation applications.
