Why Choose the Mersen P076925 Protistor® Semiconductor Fuse?
The Mersen P076925 is an ultra-fast aR semiconductor fuse designed to provide rapid short-circuit protection for sensitive power electronic components. Also identified by catalogue number A050URD1T13I, this cylindrical fuse belongs to the established Mersen Protistor® 10 × 38 series.
Engineered for semiconductor protection, the P076925 combines fast fault interruption with low energy let-through to help protect diodes, thyristors, rectifiers, IGBTs and other power electronic devices. Its integrated striker provides clear fuse operation indication and can support compatible remote signalling arrangements.
With a rated current of 1 A, a rated voltage of 500 V AC and a breaking capacity of 50 kA, this compact fuse is suitable for industrial drives, power converters, electronic control equipment and other applications requiring dependable semiconductor short-circuit protection.
Key Advantages
- Ultra-fast aR semiconductor protection.
- 1 A rated current for low-current power electronic circuits.
- 500 V AC rated voltage.
- 50 kA breaking capacity for reliable fault interruption.
- Low I²t characteristics help reduce semiconductor damage.
- Integrated striker for rapid fuse status identification.
- Compact 10 × 38 mm cylindrical format.
Key Features
- Mersen Protistor® high-speed fuse series.
- 1 A rated current.
- 500 V AC IEC rated voltage.
- aR operating class for semiconductor short-circuit protection.
- 50 kA maximum AC breaking capacity.
- Integrated striker indication system.
- 10 × 38 mm ceramic cylindrical body.
- Silver-plated copper ferrule terminals.
- Suitable for clip or compatible fuse-holder mounting.
- RoHS-compliant construction.
Ultra-Fast Protection for Sensitive Power Electronics
The Mersen P076925 is designed to interrupt dangerous short-circuit currents before excessive electrical energy can damage semiconductor components. Its low melting and clearing I²t values limit the energy passed through the protected circuit during a fault, helping reduce thermal stress and minimise equipment damage.
As an aR-class fuse, the P076925 provides partial-range protection against short-circuit currents. Suitable overload protection should therefore be incorporated separately where required by the equipment design or electrical installation.
Typical Applications
- Industrial inverters and power converters.
- Variable-speed and variable-frequency drives.
- Rectifier and diode protection.
- Thyristor and semiconductor control circuits.
- Industrial power supplies.
- Uninterruptible power supply systems.
- Automation and process-control equipment.
- Renewable energy conversion systems.
