Sensata Technologies STPS500P Active + Passive PyroFuse
Sensata Technologies STPS500P Active + Passive PyroFuse combines system-triggered and current-driven interruption in a single device. This combination enables reliable, redundant high-voltage fault protection for electrified systems. The STPS500P PyroFuse addresses the limitations of traditional circuit protection approaches and the increasing complexity of modern high-voltage electric-vehicle and electrified-system architectures. Features include a dual-trigger design that provides redundancy at the device level, ensuring reliable circuit interruption even when upstream electronics or sensors are unavailable. Instead of relying on thermal elements, this PyroFuse uses a current-driven mechanism that responds directly to electrical conditions, enabling fast interruption performance. By improving response speed and reliability, the STPS500P PyroFuse enables broader system-level benefits. Sensata Technologies STPS500P Active + Passive PyroFuse is suitable for electric vehicles, commercial transportation, charging infrastructure, and industrial electrification systems.
Features
- Independent passive safety with integrated electromechanical trigger
- Both active and passive fast disconnect in milliseconds
- Active safety with an external trigger
- Negligible power loss or thermal aging
- Tunable trip current
Applications
- Passenger vehicles
- Hybrid vehicles
- Construction
- Battery electric vehicles
- Aerospace
- Bus, truck, and trailer
- Agriculture
- Data centers
Specifications
- 1000V/500A rated voltage/current
- 0A minimum breaking capacity
- <1ms active operating time
- 50MΩ IR at 1000V@RT
- 12VDC voltage power supply
- 2000A to 2500A trigger current
- ≤60µΩ busbar resistance
- 90mm2 busbar cross-section