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MERSEN FUSE 690V FA 1,25 A 6.32 660VFA1.25A6X32
Mersen B093289 MI6FA69V1.25 very fast-acting semiconductor miniature fuse rated at 1.25 A and 690 V AC, with a compact 6.3 x 32 mm format and 30 kA breaking capacity.
£3.41
Why Choose the Mersen B093289 MI6FA69V1.25 Miniature Fuse?
The Mersen B093289 MI6FA69V1.25 is a compact 1.25 A high-speed semiconductor miniature fuse designed to protect sensitive electronic components and power semiconductor devices against damaging overcurrents and short circuits. Part of Mersen’s MI6FA 690 V fuse series, it delivers very fast fault interruption in a space-saving 6.3 × 32 mm cartridge format.
Its very fast-acting FA operating characteristic helps limit the thermal energy passed through to vulnerable semiconductor components during an electrical fault. This makes the fuse particularly suitable for converters, rectifiers, diodes, thyristors, triacs and industrial electronic equipment where rapid fault clearance is essential.
Rated at 1.25 A and 690 V AC, the Mersen B093289 offers a high 30 kA breaking capacity. Its compact clip-mounted construction, low energy let-through and recognised semiconductor protection performance make it a dependable choice for industrial automation, power electronics and OEM equipment.
Key Advantages
- Very fast-acting semiconductor protection fuse.
- 1.25 A rated current for sensitive electronic circuits.
- 690 V AC voltage rating for demanding industrial applications.
- Compact 6.3 × 32 mm cartridge format.
- 30 kA breaking capacity for dependable fault interruption.
- Low I²t performance helps minimise damage to semiconductor devices.
Key Features
- Mersen MI6FA semiconductor miniature fuse series.
- 1.25 A rated current.
- 690 V AC rated voltage.
- Very fast-acting FA characteristic.
- Standard 6.3 × 32 mm fuse size.
- Clip-mounted installation in a compatible fuse holder.
- Designed for sensitive semiconductor and electronic equipment.
- UL and CSA recognised design.
High-Speed Protection for Power Electronics
Power semiconductor components can be permanently damaged by extremely short overcurrent events. The Mersen B093289 is engineered to interrupt fault currents rapidly, helping restrict the thermal energy transferred to protected components and supporting longer equipment service life.
Its 690 V rating makes it suitable for higher-voltage electronic and industrial control systems. The compact cartridge format also enables efficient installation in equipment where panel space is limited and reliable semiconductor protection is required.
Typical Applications
- Power semiconductor protection.
- Converters and rectifier circuits.
- Diode protection.
- Thyristor and triac circuits.
- Industrial power electronic equipment.
- Automation and OEM control assemblies.
Technical Specifications
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| Current | 1.25 A | |
|---|---|---|
| Voltage | 690 V | |
| Device Type | Fuse link | |
| Fuse Type | Miniature, Semiconductor | |
| Fuse Size | 6.3x32 mm | |
| Fuse Class | Fast acting | |
| Manufacturer | Mersen | |
| Series | MI6FA 690 V | |
| Catalogue number | MI6FA69V1.25 | |
| Manufacturer part number | B093289 | |
| Product type | Semiconductor miniature fuse | |
| Rated current | 1.25 A | |
| Rated voltage | 690 V AC | |
| Current type | AC | |
| Operating characteristic | Very fast acting FA | |
| Fuse size | 6.3 × 32 mm | |
| Product diameter | Approx. 6.35 mm | |
| Product length | Approx. 32 mm | |
| Breaking capacity | 30 kA | |
| Pre-arcing I²t | 0.17 A²s | |
| Clearing I²t at rated voltage | 0.76 A²s | |
| Mounting type | Clip mounting | |
| Connection type | Ferrule | |
| Approximate product weight | 2.5 g | |
| EAN | 3605340117189 | |
| Standard pack quantity | 50 | |
| Recognition | UL / CSA recognised, file E76491 | |
| Compliance | CE, UKCA, RoHS and REACH compliant |
Frequently Asked Questions
What is the Mersen B093289 used for?
The Mersen B093289 is a very fast-acting miniature fuse used to protect sensitive semiconductor devices, converters and electronic circuits against overcurrents and short circuits.
What is the current rating of the Mersen B093289?
The fuse has a rated current of 1.25 A.
What voltage is the Mersen B093289 rated for?
The Mersen B093289 is rated for operation at up to 690 V AC.
What is the breaking capacity of this fuse?
The Mersen B093289 has a breaking capacity of 30 kA, supporting dependable interruption of high prospective fault currents.
What size is the Mersen B093289?
The fuse uses a compact 6.3 × 32 mm 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 equipment manufacturers, power electronics engineers and maintenance professionals for rapid fault interruption and dependable protection of sensitive semiconductor components.
