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 400V FA 0,05 A 5.20 MI5FA40V0,05
Mersen N095991 MI5FA40V0.05 high-speed 5 x 20 mm ceramic miniature cartridge fuse rated at 0.05 A and 400 V AC for semiconductor and sensitive electronic circuit protection.
£4.12
Why Choose the Mersen N095991 High-Speed Fuse?
The Mersen N095991, catalogue number MI5FA40V0.05, is a 5 × 20 mm ceramic high-speed miniature cartridge fuse engineered to provide rapid protection for sensitive semiconductor devices, electronic circuits and industrial control equipment. Its ultra-fast (FF/FA) operating characteristic ensures fault currents are interrupted quickly, helping to minimise damage to valuable electronic components.
Rated at 0.05 A with a 400 V AC voltage rating, the N095991 is ideal for protecting very low-current electronic circuits where conventional fuses may not respond quickly enough. The ceramic construction offers excellent mechanical strength and dependable fault interruption in demanding industrial environments.
Manufactured by Mersen, a global leader in circuit protection technology, the N095991 combines compact dimensions with reliable semiconductor protection, making it suitable for OEM equipment, industrial automation systems, measuring instruments and power electronics.
Key Advantages
- Ultra-fast acting fuse for semiconductor protection.
- 0.05 A current rating for very low-current electronic circuits.
- 400 V AC voltage rating.
- Compact 5 × 20 mm ceramic cartridge construction.
- 10 kA breaking capacity for dependable fault interruption.
- Suitable for industrial electronics, instrumentation and automation equipment.
Key Features
- Mersen semiconductor miniature fuse range.
- Catalogue number: MI5FA40V0.05.
- Rated current: 0.05 A.
- Rated voltage: 400 V AC.
- Ultra-fast acting FF / FA characteristic.
- 5 × 20 mm ceramic cartridge.
- Clip mounting in compatible fuse holders.
- Designed for semiconductor and electronic circuit protection.
Rapid Protection for Sensitive Electronics
High-speed semiconductor fuses are specifically designed to interrupt fault currents before excessive electrical and thermal energy can damage sensitive components. The Mersen N095991 provides exceptionally fast fault clearance, making it ideal for protecting precision electronic equipment and semiconductor devices.
Its compact ceramic construction and high interrupting capacity make it suitable for applications where installation space is limited but dependable circuit protection is essential for maintaining equipment reliability.
Typical Applications
- Semiconductor device protection.
- Industrial automation equipment.
- Electronic control circuits.
- Power supplies.
- Instrumentation and measuring equipment.
- OEM electronic assemblies.
Technical Specifications
Tick the specs you need, then view products that match.
| Current | 0.05 A | |
|---|---|---|
| Voltage | 400 V | |
| Device Type | Fuse link | |
| Fuse Type | Miniature, Semiconductor | |
| Fuse Size | 5x20 mm | |
| Fuse Class | Fast acting | |
| Manufacturer | Mersen | |
| Series | Semiconductor Miniature Fuses 5 × 20 mm | |
| Model | N095991 | |
| Catalogue number | MI5FA40V0.05 | |
| Product type | High-speed miniature cartridge fuse | |
| Rated current | 0.05 A | |
| Rated voltage | 400 V AC | |
| Current type | AC | |
| Operating characteristic | Ultra-fast acting (FF / FA) | |
| Fuse size | 5 × 20 mm | |
| Body material | Ceramic | |
| Breaking capacity | 10 kA | |
| Frequency | 50 / 60 Hz | |
| Mounting type | Clip mounting | |
| EAN | 3605340133967 |
Frequently Asked Questions
What is the Mersen N095991 used for?
The Mersen N095991 is designed to protect sensitive semiconductor devices and electronic circuits against overloads and short circuits.
What is the current rating of the N095991?
The fuse has a rated current of 0.05 A (50 mA).
What voltage is this fuse rated for?
The Mersen N095991 is rated for operation at up to 400 V AC.
What size is the Mersen N095991?
It is a standard 5 × 20 mm ceramic miniature cartridge fuse.
Is the N095991 a fast-acting fuse?
Yes. It features an ultra-fast FF/FA operating characteristic specifically designed for semiconductor and sensitive electronic circuit protection.
Trusted for Semiconductor Protection
Mersen high-speed miniature fuses are trusted worldwide by OEM manufacturers, automation engineers and maintenance professionals for dependable protection of sensitive electronic equipment.
