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MERSEN FUSE 250V SA 12,5 A 5.20 MI5SA25V12,5
Mersen W087028 MI5SA25V12.5 semiconductor miniature fuse featuring a 12.5 A current rating, 250 V AC voltage rating, medium time-lag SA characteristic and 5 x 20 mm ceramic body.
£2.75
Why Choose the Mersen W087028 Semiconductor Miniature Fuse?
The Mersen W087028, catalogue number MI5SA25V12.5, is a compact semiconductor miniature fuse engineered to provide dependable overcurrent protection for sensitive electronic equipment, semiconductor devices and industrial control circuits. As part of Mersen's 5 × 20 mm SA miniature fuse range, it features a medium time-lag (SA) characteristic that accommodates normal inrush currents while protecting against sustained overloads and short circuits.
With a rated current of 12.5 A and a rated operating voltage of 250 V AC, the W087028 is ideal for industrial electronics, instrumentation, automation equipment and power supplies. Its ceramic construction delivers excellent thermal and electrical performance while maintaining a compact footprint for space-constrained installations.
Designed for clip mounting, the fuse incorporates ferrule terminals for secure installation in compatible fuse holders. A 10 kA breaking capacity together with controlled pre-arcing and clearing I²t characteristics provides reliable protection for sensitive electronic and semiconductor-based systems.
Key Advantages
- Designed for semiconductor and sensitive electronic circuit protection.
- 12.5 A current rating for industrial electronic applications.
- 250 V AC rated voltage.
- Medium time-lag SA characteristic accommodates normal inrush currents.
- Compact 5 × 20 mm ceramic cartridge design.
- 10 kA breaking capacity for dependable fault interruption.
- Clip mounting enables straightforward installation and replacement.
- RoHS compliant construction.
Key Features
- Mersen 5 × 20 mm SA semiconductor fuse series.
- Catalogue number: MI5SA25V12.5.
- 12.5 A rated current.
- 250 V AC rated voltage.
- Medium time-lag SA operating characteristic.
- 5 × 20 mm ceramic cartridge.
- Clip mounting with ferrule terminals.
- Pre-arcing I²t: 63 A²s.
- Clearing I²t: 200 A²s.
- RoHS compliant.
Reliable Protection for Electronic Equipment
The Mersen W087028 is designed to protect semiconductor devices and electronic assemblies by combining a medium time-lag operating characteristic with dependable fault interruption. It accommodates normal start-up currents while providing reliable protection against sustained overloads and short circuits.
Its ceramic construction, compact dimensions and controlled I²t characteristics make it well suited to industrial automation equipment, instrumentation, power supplies and electronic control systems where dependable circuit protection is essential.
Typical Applications
- Semiconductor protection.
- Industrial electronic equipment.
- Automation and control systems.
- Power supplies.
- Instrumentation equipment.
- Electronic control circuits.
- OEM machinery.
- Industrial power electronics.
Technical Specifications
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| Current | 12.5 A | |
|---|---|---|
| Voltage | 250 V | |
| Device Type | Fuse link | |
| Fuse Type | Miniature, Semiconductor | |
| Fuse Size | 5x20 mm | |
| Fuse Class | Time delay | |
| Manufacturer | Mersen | |
| Item number | W087028 | |
| Catalogue number | MI5SA25V12.5 | |
| Product type | Semiconductor miniature fuse | |
| Series | 5 × 20 mm SA 250 V | |
| Rated current | 12.5 A | |
| Rated voltage | 250 V AC | |
| Current type | AC | |
| Characteristic | Medium time-lag (SA) | |
| Fuse size | 5 × 20 mm | |
| Mounting type | Clip mounting | |
| Terminal type | Ferrule | |
| Body material | Ceramic | |
| Breaking capacity | 10 kA | |
| Pre-arcing I²t | 63 A²s | |
| Clearing I²t | 200 A²s | |
| Standard pack quantity | 50 pieces | |
| EAN | 3605340077421 | |
| RoHS compliant | Yes |
Frequently Asked Questions
What is the Mersen W087028 used for?
The W087028 protects semiconductor devices and sensitive electronic circuits from overcurrent and short-circuit faults.
What is the current rating of the W087028?
This fuse has a rated current of 12.5 A.
What voltage is the fuse rated for?
The Mersen W087028 is rated for operation at up to 250 V AC.
What type of operating characteristic does it have?
The fuse features a medium time-lag (SA) characteristic, allowing normal inrush currents while protecting against sustained overloads.
How is the fuse installed?
The W087028 is designed for clip mounting in compatible 5 × 20 mm fuse holders.
Trusted by Electrical and Automation Professionals
Mersen semiconductor miniature fuses are trusted worldwide for protecting sensitive electronic equipment, industrial control systems and power electronic applications with dependable overcurrent protection.
