Standard delivery
£8 ex VAT · free over £200UK parcel delivery is £8 ex VAT, or free on orders over £200 ex VAT.
Heavier items may be charged at a weight-based or pallet rate, shown at checkout.
MERSEN FUSE 250V SB 0,04 A 5.20 MI5SB25V0,04
Mersen C080479 MI5SB25V0.04 semiconductor miniature fuse rated at 0.04 A and 250 V AC, featuring a 5 x 20 mm clip-mounted format and medium time-lag SB characteristic.
£5.29
Why Choose the Mersen C080479 Semiconductor Miniature Fuse?
The Mersen C080479, catalogue number MI5SB25V0.04, is a compact 5 × 20 mm semiconductor miniature fuse designed to protect sensitive electronic components and control equipment against damaging overcurrents. As part of Mersen's SA/SB miniature fuse range, it combines reliable fault protection with a medium time-lag characteristic that can accommodate short-duration current surges.
With a rated current of 0.04 A and a rated voltage of 250 V AC, the C080479 is suitable for low-current electronic circuits where precise and dependable protection is required. Its SB operating characteristic helps prevent unnecessary fuse operation during temporary inrush conditions while still responding to sustained overloads and short circuits.
The fuse uses a standard 5 × 20 mm clip-mounted format, allowing straightforward installation into compatible fuse holders. Its compact construction makes it suitable for control apparatus, instrumentation, power supplies and OEM electronic assemblies where space and reliable circuit protection are important.
Key Advantages
- Compact 5 × 20 mm semiconductor miniature fuse.
- 0.04 A current rating for sensitive low-current circuits.
- 250 V AC voltage rating for electronic and control equipment.
- Medium time-lag SB characteristic accommodates brief current surges.
- Clip mounting enables straightforward replacement and installation.
- Designed to protect semiconductor devices and sensitive control apparatus.
Key Features
- Mersen SA/SB 125–250 V miniature fuse series.
- Catalogue number: MI5SB25V0.04.
- 0.04 A rated current.
- 250 V AC rated voltage.
- Medium time-lag SB operating characteristic.
- Standard 5 × 20 mm miniature fuse format.
- Clip-mounted construction.
- Suitable for sensitive electronic component protection.
Reliable Protection for Sensitive Electronic Circuits
Sensitive semiconductor components and control circuits can be damaged by sustained overloads and short-circuit currents. The Mersen C080479 provides controlled overcurrent protection while its medium time-lag characteristic allows brief, non-damaging surge currents to pass without unnecessary interruption.
Its compact 5 × 20 mm format makes it suitable for installation in electronic control equipment, industrial instrumentation and compact OEM assemblies. The clip-mounted design also supports convenient inspection and replacement during maintenance.
Typical Applications
- Semiconductor protection circuits.
- Electronic control apparatus.
- Industrial instrumentation.
- Low-current power supplies.
- Automation and monitoring equipment.
- Measurement and test equipment.
- OEM electronic assemblies.
Technical Specifications
Tick the specs you need, then view products that match.
| Current | 0.04 A | |
|---|---|---|
| Voltage | 250 V | |
| Device Type | Fuse link | |
| Fuse Type | Miniature, Semiconductor | |
| Fuse Size | 5x20 mm | |
| Fuse Class | Time delay | |
| Manufacturer | Mersen | |
| Series | SA/SB 125–250 V Semiconductor Miniature Fuses | |
| Model | C080479 | |
| Catalogue number | MI5SB25V0.04 | |
| Product type | Semiconductor miniature fuse | |
| Rated current | 0.04 A | |
| Rated voltage | 250 V AC | |
| Current type | AC | |
| Fuse size | 5 × 20 mm | |
| Speed / characteristic | Medium time-lag SB | |
| Mounting type | Clip mounting | |
| Application | Semiconductor and control apparatus protection | |
| EAN / UPC | 3605340039764 |
Frequently Asked Questions
What is the Mersen C080479 used for?
The Mersen C080479 is used to protect sensitive semiconductor components, electronic circuits and control apparatus against overloads and short circuits.
What is the current rating of the C080479?
The fuse has a rated current of 0.04 A, equivalent to 40 milliamps.
What voltage is this fuse rated for?
The Mersen C080479 is rated for operation at up to 250 V AC.
What does the SB characteristic mean?
The SB characteristic provides a medium time-lag response, allowing brief inrush currents while protecting the circuit against sustained overloads and short circuits.
How is the Mersen C080479 installed?
The fuse is clip mounted and designed for installation in a compatible 5 × 20 mm miniature fuse holder.
Trusted by Electronics and Automation Professionals
Mersen semiconductor miniature fuses are trusted by electronics manufacturers, automation engineers and maintenance professionals to provide reliable protection for sensitive components and industrial control equipment.
