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MERSEN FUSE 250V FC 2,5 5X20 MI5FC25V2,5
Mersen F206039 MI5FC25V2.5 fast-acting 5 x 20 mm miniature semiconductor fuse rated at 2.5 A and 250 V AC, with ceramic construction and ferrule terminals for clip mounting.
£1.01
Why Choose the Mersen F206039 Fast-Acting Miniature Fuse?
The Mersen F206039, catalogue reference MI5FC25V2.5, is a compact fast-acting miniature semiconductor fuse designed to protect sensitive electronic components and semiconductor devices against damaging overcurrents and short circuits. It forms part of Mersen’s 5 × 20 mm FC 250 V miniature fuse series, providing rapid and reliable circuit interruption for industrial and electronic equipment.
With a rated current of 2.5 A and a rated voltage of 250 V AC, the F206039 is suitable for electronic power supplies, instrumentation, industrial control equipment and semiconductor-based assemblies. Its fast FC operating characteristic helps limit the electrical energy passed during a fault, reducing thermal stress and the risk of damage to protected components.
The fuse is manufactured in a durable 5 × 20 mm ceramic cartridge format with ferrule end caps for installation in a compatible clip-mounted fuse holder. Its standard miniature dimensions and replaceable construction support straightforward installation and maintenance within control panels, electronic equipment and space-restricted assemblies.
Key Advantages
- Fast-acting semiconductor protection fuse for sensitive electronic equipment.
- 2.5 A rated current for industrial and electronic circuits.
- 250 V AC rated voltage.
- FC fast-acting characteristic provides rapid fault interruption.
- Compact 5 × 20 mm miniature fuse format.
- 1.5 kA minimum interrupting rating.
- Ceramic cartridge construction provides dependable electrical insulation.
- Ferrule end caps allow convenient clip mounting and replacement.
Key Features
- Mersen 5 × 20 mm FC 250 V semiconductor fuse series.
- 2.5 A rated current.
- 250 V AC rated voltage.
- Fast FC operating characteristic.
- 1.5 kA minimum interrupting rating.
- Ceramic cylindrical cartridge body.
- Ferrule terminals for clip-mounted fuse holders.
- Designed for semiconductor and sensitive electronic circuit protection.
- RoHS-compliant construction.
Fast Protection for Sensitive Electronic Circuits
Semiconductor devices and electronic components can be damaged by excessive current before conventional time-delay fuses operate. Fast-acting fuses such as the Mersen F206039 are designed to interrupt fault currents quickly, helping limit the thermal and electrical energy reaching protected components.
The F206039 combines a fast FC characteristic with a compact and replaceable cartridge design. Its ceramic body, ferrule connections and standard 5 × 20 mm dimensions make it suitable for electronic equipment requiring dependable protection and convenient fuse replacement.
Typical Applications
- Semiconductor device protection.
- Industrial automation and control equipment.
- Electronic power supplies.
- Instrumentation and measurement systems.
- Printed circuit board assemblies with fuse holders.
- Electronic control modules.
- Industrial control panels.
- Sensitive electronic circuits requiring fast fault interruption.
Technical Specifications
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| Voltage | 250 V | |
|---|---|---|
| Device Type | Fuse link | |
| Fuse Type | Miniature, Semiconductor | |
| Fuse Size | 5x20 mm | |
| Current | 2.5 A | |
| Manufacturer | Mersen | |
| Item number | F206039 | |
| Catalogue number | MI5FC25V2.5 | |
| Product type | Miniature semiconductor protection fuse | |
| Series | 5 × 20 FC 250 V | |
| Rated current | 2.5 A | |
| Rated voltage | 250 V AC | |
| AC or DC rating | AC | |
| Operating characteristic | Fast | |
| Characteristic code | FC | |
| Minimum interrupting rating | 1.5 kA | |
| Melting I²t | 1.1 A²s | |
| Clearing I²t at rated voltage | 2.4 A²s | |
| Fuse size | 5 × 20 mm | |
| Product diameter | 5 mm | |
| Product length | 20 mm | |
| Product height | 5 mm | |
| Connection type | Ferrule ends | |
| Mounting type | Clip mounting | |
| Body material | Ceramic | |
| Product weight | Approx. 1.2 g | |
| Pack quantity | 50 | |
| RoHS compliant | Yes | |
| EAN / UPC | 3605340190854 |
Frequently Asked Questions
What is the Mersen F206039 used for?
The Mersen F206039 is used to protect sensitive semiconductor devices, electronic circuits and industrial control equipment against damaging overcurrents and short circuits.
What is the current rating of the Mersen F206039?
The fuse has a rated current of 2.5 A.
What voltage is the F206039 rated for?
The Mersen F206039 has a rated voltage of 250 V AC.
Is the Mersen F206039 a fast-acting fuse?
Yes. It has a fast FC operating characteristic designed to provide rapid protection for sensitive semiconductor and electronic components.
How is the Mersen F206039 installed?
The fuse has ferrule end caps and is designed for installation inside a compatible 5 × 20 mm clip-mounted fuse holder.
Trusted Electrical Protection from Mersen
Mersen miniature semiconductor fuses are trusted by electronics manufacturers, automation engineers and equipment designers requiring compact, dependable and fast-acting protection for sensitive electrical circuits.
