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MERSEN FUSE 250V SB 0,08 A 5.20 MI5SB25V0,08
Mersen B080478 MI5SB25V0.08 semiconductor miniature fuse rated at 0.08 A and 250 V AC, featuring a medium time-lag SB characteristic and compact 5 x 20 mm ceramic cartridge.
£5.41
Why Choose the Mersen B080478 MI5SB25V0.08 Miniature Fuse?
The Mersen B080478 MI5SB25V0.08 is a compact 0.08 A semiconductor miniature fuse designed to protect sensitive electronic components, control apparatus and industrial circuits against damaging overcurrents. Part of Mersen’s MI5SB 250 V fuse range, it combines dependable protection with a space-saving 5 × 20 mm ceramic cartridge format.
Its medium time-lag SB operating characteristic allows the fuse to withstand brief inrush and transient currents without unnecessary operation. This makes it suitable for circuits that experience short-duration current surges during start-up while still requiring effective protection against sustained overloads and short-circuit conditions.
Rated at 0.08 A and 250 V AC, the Mersen B080478 is designed for clip mounting in a compatible miniature fuse holder. Its ceramic construction, ferrule terminals and 4 kA minimum interrupting rating provide reliable performance in electronic control, instrumentation and OEM equipment applications.
Key Advantages
- Compact 5 × 20 mm semiconductor miniature fuse.
- 0.08 A rated current for sensitive low-current circuits.
- 250 V AC rated voltage.
- Medium time-lag characteristic tolerates brief inrush currents.
- 4 kA interrupting rating for dependable fault clearance.
- Suitable for electronic controls and circuits with transient current conditions.
Key Features
- Mersen MI5SB semiconductor miniature fuse series.
- 0.08 A rated current.
- 250 V AC rated voltage.
- Medium time-lag SB operating characteristic.
- Standard 5 × 20 mm fuse size.
- Clip-mounted installation in a compatible fuse holder.
- Ceramic insulating body with ferrule terminals.
- Designed for circuits with inrush or transient currents.
Reliable Protection for Circuits with Inrush Current
Electronic components and control apparatus can be damaged when excessive current creates thermal stress beyond their operating limits. The Mersen B080478 helps protect connected equipment by interrupting sustained overloads and short-circuit currents before damaging energy reaches sensitive components.
The medium time-lag characteristic allows harmless start-up surges and transient currents to pass without immediately operating the fuse. This helps reduce nuisance fuse replacement while maintaining dependable protection against genuine electrical faults.
Typical Applications
- Sensitive electronic control equipment.
- Instrumentation and measurement circuits.
- Industrial power supplies.
- Automation and control systems.
- Circuits with inrush or transient current conditions.
- OEM electronic and electrical assemblies.
Technical Specifications
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| Current | 0.08 A | |
|---|---|---|
| Voltage | 250 V | |
| Device Type | Fuse link | |
| Fuse Type | Miniature, Semiconductor | |
| Fuse Size | 5x20 mm | |
| Fuse Class | Time delay | |
| Manufacturer | Mersen | |
| Series | MI5SB 250 V | |
| Catalogue number | MI5SB25V0.08 | |
| Manufacturer part number | B080478 | |
| Product type | Semiconductor miniature fuse | |
| Rated current | 0.08 A | |
| Rated voltage | 250 V AC | |
| Current type | AC | |
| Operating characteristic | Medium time-lag SB | |
| Fuse Size | 5 × 20 mm | |
| Product diameter | Approx. 5.1 mm | |
| Product length | Approx. 20 mm | |
| Minimum interrupting rating | 4 kA | |
| Melting I²t | 0.00131 A²s | |
| Clearing I²t at rated voltage | 0.0037 A²s | |
| Mounting type | Clip mounting | |
| Connection type | Ferrule | |
| Body material | Ceramic | |
| Approximate product weight | 1.2 g | |
| EAN | 3605340039740 | |
| Standard pack quantity | 50 | |
| Compliance | RoHS, REACH and UKCA compliant |
Frequently Asked Questions
What is the Mersen B080478 used for?
The Mersen B080478 is used to protect sensitive electronic components, control apparatus and low-current circuits against sustained overloads and short circuits.
What is the current rating of the Mersen B080478?
The fuse has a rated current of 0.08 A.
What voltage is the Mersen B080478 rated for?
The Mersen B080478 is rated for operation at up to 250 V AC.
What does the SB characteristic mean?
The SB characteristic identifies the fuse as a medium time-lag device that can tolerate brief inrush and transient currents while still protecting against sustained overloads and short circuits.
What size is the Mersen B080478?
The fuse uses a compact 5 × 20 mm ceramic cartridge format and is designed for clip mounting in a compatible miniature fuse holder.
Trusted by Electronics and Automation Professionals
Mersen semiconductor miniature fuses are trusted by electronics engineers, equipment manufacturers and maintenance professionals for reliable protection of sensitive circuits and equipment exposed to temporary inrush currents.
