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.
