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MERSEN FUSE 250V SB 0,05 A 5.20 MI5SB25V0,05
Mersen R080469 MI5SB25V0.05 high-speed semiconductor miniature fuse rated at 0.05 A and 250 V AC with a 5 x 20 mm ceramic body and SB ultra fast characteristic.
£5.54
Why Choose the Mersen R080469 High-Speed Semiconductor Fuse?
The Mersen R080469, catalogue reference MI5SB25V0.05, is a compact high-speed semiconductor protection fuse engineered to provide rapid protection against overcurrents and short circuits in sensitive electronic equipment. Part of Mersen's proven 5 × 20 mm SB miniature fuse range, it is designed for applications where extremely fast fault interruption is essential to safeguard semiconductor devices.
Its SB ultra fast-acting characteristic minimises the thermal and electrical energy transferred to protected components during fault conditions. This makes the fuse ideal for protecting diodes, thyristors, IGBTs, MOSFETs, rectifiers and other semiconductor devices used in industrial electronics and power conversion equipment.
With a rated current of 0.05 A and a rated voltage of 250 V AC, the R080469 provides precise protection for very low-current electronic circuits. Its compact 5 × 20 mm ceramic body allows installation in compatible miniature fuse holders used throughout industrial and commercial electronic equipment.
Key Advantages
- Ultra fast SB semiconductor protection fuse.
- 0.05 A current rating for sensitive low-current circuits.
- 250 V AC rated voltage.
- Compact 5 × 20 mm ceramic cartridge.
- Rapid fault interruption helps protect semiconductor devices.
- Suitable for industrial electronics and power conversion equipment.
Key Features
- Mersen MI5SB25V0.05 semiconductor miniature fuse.
- 0.05 A rated current.
- 250 V AC rated voltage.
- SB ultra fast-acting characteristic.
- 5 × 20 mm ceramic body.
- Breaking capacity of 4 kA.
- Pre-arcing I²t of 0.00029 A²s.
- Clearing I²t of 0.00082 A²s.
Reliable Protection for Sensitive Semiconductor Circuits
Modern semiconductor devices can fail rapidly when exposed to excessive fault current. High-speed SB fuses are specifically designed to interrupt faults before damaging levels of heat and energy reach protected components, helping maximise equipment reliability and minimise downtime.
The compact ceramic construction and low current rating make the Mersen R080469 particularly suitable for protecting delicate electronic assemblies, instrumentation and industrial control equipment where precise overcurrent protection is essential.
Typical Applications
- Semiconductor protection.
- Power electronic circuits.
- Industrial control equipment.
- Electronic power supplies.
- Instrumentation and measurement systems.
- Printed circuit board assemblies.
Technical Specifications
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| Current | 0.05 A | |
|---|---|---|
| Voltage | 250 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 SB | |
| Model | R080469 | |
| Catalogue number | MI5SB25V0.05 | |
| Product type | High-speed semiconductor miniature fuse | |
| Rated current | 0.05 A | |
| Rated voltage | 250 V AC | |
| Fuse size | 5 × 20 mm | |
| Operating characteristic | SB ultra fast acting | |
| Breaking capacity | 4 kA | |
| Pre-arcing I²t | 0.00029 A²s | |
| Clearing I²t | 0.00082 A²s | |
| Body material | Ceramic | |
| Mounting type | Compatible 5 × 20 mm fuse holder |
Frequently Asked Questions
What is the Mersen R080469 used for?
The Mersen R080469 provides ultra fast overcurrent protection for sensitive semiconductor devices and electronic circuits.
What is the current rating of the R080469 fuse?
The fuse has a rated current of 0.05 A, equivalent to 50 mA.
What voltage is the Mersen R080469 rated for?
The fuse is rated for operation on circuits up to 250 V AC.
Is the R080469 a time-delay fuse?
No. It has an SB ultra fast-acting characteristic designed to interrupt fault currents extremely quickly to protect semiconductor devices.
How is the Mersen R080469 installed?
The fuse has a standard 5 × 20 mm ceramic cartridge body and is designed for installation in a compatible miniature fuse holder.
Trusted Semiconductor Protection from Mersen
Mersen high-speed semiconductor fuses are trusted worldwide by equipment manufacturers, machine builders and electrical engineers to provide dependable protection for sensitive power electronics and industrial automation systems.
