Sensata Technologies Introduces New PyroFuse to Improve High-Voltage Safety
Sensata Technologies (NYSE: ST) has launched its new STPS500 Series PyroFuse, a pyrotechnic circuit breaker designed for high-voltage applications up to 1000V. The device features rapid disconnect time of less than 1 millisecond and can handle continuous current up to 500A.
Key capabilities include:
- Breaking capacity of up to 20,000A at 500V and 16,000A at 1000V
- Superior sealing performance with enhanced arc suppression
- Post-isolation resistance over 50MΩ at 1000V
- Compact and lightweight design
The PyroFuse is targeted for automotive, charging, aerospace, and industrial systems, offering improved safety protection against short circuits and electrical shock events. The product launch demonstrates Sensata's commitment to vehicle electrification innovation.
Sensata Technologies (NYSE: ST) ha lanciato la nuova serie STPS500 PyroFuse, un interruttore automatico pirotecnico progettato per applicazioni ad alta tensione fino a 1000V. Il dispositivo presenta un tempo di disconnessione rapido di meno di 1 millisecondo e può gestire una corrente continua fino a 500A.
Le principali caratteristiche includono:
- Capacità di interruzione fino a 20.000A a 500V e 16.000A a 1000V
- Prestazioni di sigillatura superiori con una migliore soppressione dell'arco
- Resistenza post-isolamento superiore a 50MΩ a 1000V
- Design compatto e leggero
Il PyroFuse è destinato a sistemi automobilistici, di ricarica, aerospaziali e industriali, offrendo una protezione di sicurezza migliorata contro cortocircuiti e eventi di scossa elettrica. Il lancio del prodotto dimostra l'impegno di Sensata nell'innovazione dell'elettrificazione dei veicoli.
Sensata Technologies (NYSE: ST) ha lanzado su nueva serie STPS500 PyroFuse, un interruptor de circuito pirotécnico diseñado para aplicaciones de alta tensión de hasta 1000V. El dispositivo cuenta con un tiempo de desconexión rápido de menos de 1 milisegundo y puede manejar una corriente continua de hasta 500A.
Las principales capacidades incluyen:
- Capacidad de interrupción de hasta 20,000A a 500V y 16,000A a 1000V
- Rendimiento de sellado superior con mejor supresión de arco
- Resistencia de postaislación superior a 50MΩ a 1000V
- Diseño compacto y ligero
El PyroFuse está dirigido a sistemas automotrices, de carga, aeroespaciales e industriales, ofreciendo una protección de seguridad mejorada contra cortocircuitos y eventos de choque eléctrico. El lanzamiento del producto demuestra el compromiso de Sensata con la innovación en electrificación de vehículos.
센사타 테크놀로지스 (NYSE: ST)는 1000V까지의 고전압 응용 프로그램을 위해 설계된 새로운 STPS500 시리즈 파이로퓨즈를 출시했습니다. 이 장치는 1밀리초 미만의 빠른 차단 시간을 가지고 있으며, 최대 500A의 지속 전류를 처리할 수 있습니다.
주요 기능은 다음과 같습니다:
- 500V에서 최대 20,000A, 1000V에서 16,000A의 차단 용량
- 아크 억제를 강화한 우수한 밀봉 성능
- 1000V에서 50MΩ 이상의 포스트 절연 저항
- 콤팩트하고 경량 디자인
파이로퓨즈는 자동차, 충전, 항공우주 및 산업 시스템을 대상으로 하여 단락 및 전기 충격 사건에 대한 안전 보호를 개선합니다. 이 제품 출시로 센사타는 차량 전기화 혁신에 대한 의지를 보여줍니다.
Sensata Technologies (NYSE: ST) a lancé sa nouvelle série STPS500 PyroFuse, un disjoncteur pyrotechnique conçu pour des applications haute tension jusqu'à 1000V. L'appareil possède un temps de déconnexion rapide de moins de 1 milliseconde et peut gérer un courant continu allant jusqu'à 500A.
Les principales caractéristiques comprennent:
- Capacité de coupure allant jusqu'à 20 000A à 500V et 16 000A à 1000V
- Performance d'étanchéité supérieure avec une meilleure suppression des arcs
- Résistance post-isolation supérieure à 50MΩ à 1000V
- Design compact et léger
Le PyroFuse est destiné aux systèmes automobiles, de recharge, aérospatiaux et industriels, offrant une protection de sécurité améliorée contre les courts-circuits et les événements de choc électrique. Le lancement du produit démontre l'engagement de Sensata envers l'innovation dans l'électrification des véhicules.
Sensata Technologies (NYSE: ST) hat seine neue STPS500 Serie PyroFuse auf den Markt gebracht, einen pyrotechnischen Leistungsschalter, der für Hochspannungsanwendungen bis zu 1000V ausgelegt ist. Das Gerät verfügt über eine schnelle Trennzeit von weniger als 1 Millisekunde und kann einen Dauerstrom von bis zu 500A bewältigen.
Zu den wichtigsten Eigenschaften gehören:
- Unterbrechungskapazität von bis zu 20.000A bei 500V und 16.000A bei 1000V
- Überlegene Abdichtungsleistung mit verbesserter Lichtbogenunterdrückung
- Nach-Isolationswiderstand von über 50MΩ bei 1000V
- Kompakte und leichte Bauweise
Die PyroFuse ist für Automobil-, Lade-, Luft- und Raumfahrt- sowie Industriesysteme konzipiert und bietet verbesserten Schutz gegen Kurzschlüsse und elektrische Schockereignisse. Die Produkteinführung zeigt das Engagement von Sensata für Innovationen in der Elektrifizierung von Fahrzeugen.
- Advanced technical specifications with 500A continuous current capacity and <1ms disconnect time
- High breaking capacity of up to 20,000A at 500V
- Product expansion into growing electrification market
- None.
Insights
Sensata's new PyroFuse represents a significant technical advancement in high-voltage protection systems. The sub-millisecond disconnect time (less than 1ms) dramatically outperforms traditional thermal fuses, providing crucial safety improvements for high-energy electrical systems. This rapid response capability, combined with the 20,000A at 500V breaking capacity, addresses a critical vulnerability in current EV architectures.
The isolation resistance of over 50MΩ at 1000V post-activation provides exceptional protection against secondary hazards. From a technical perspective, the enhanced arc suppression also represents meaningful differentiation, as it prevents gas release during breaking events - a significant advantage in space-constrained EV battery enclosures where thermal events must be strictly contained.
The PyroFuse's compatibility with Sensata's contactor ecosystem creates an integrated safety approach that should streamline OEM implementation. This technical interoperability could drive adoption among manufacturers already using Sensata components, potentially extending beyond automotive into aerospace and industrial applications where high-voltage DC protection is increasingly critical.
As electrification accelerates across transportation and industry, protection devices capable of rapidly isolating high-energy faults will become essential safety components rather than optional enhancements, positioning this innovation well for long-term relevance in the safety-critical components market.
This product launch strategically positions Sensata in the high-growth electrification safety segment. As industries transition to higher-voltage systems, safety components are evolving from commodity items to specialized protection solutions. The PyroFuse targets multiple sectors - automotive, charging infrastructure, aerospace, and industrial systems - diversifying potential revenue streams beyond any single market.
The PyroFuse's 500A continuous current capacity at 1000V hits the sweet spot for commercial EV applications and fast-charging infrastructure, two segments experiencing substantial investment. While consumer EV growth has moderated, commercial vehicle electrification continues accelerating, providing a potentially robust market for high-capacity safety components.
Sensata's strategy of pairing the PyroFuse with their existing contactor portfolio appears designed to create a comprehensive high-voltage protection ecosystem, potentially increasing switching costs for customers and strengthening Sensata's market position. The technical differentiation in a traditionally commoditized segment should support healthier margins than standard protection components.
While this single product won't transform Sensata's business model overnight, it represents a meaningful expansion of their addressable market in high-value safety components. The timing aligns with industry adoption cycles, as OEMs are currently designing next-generation EV platforms where enhanced safety systems will feature prominently following recent high-profile thermal events in the industry.
- Sensata’s new STPS500 Series PyroFuse is a cutting-edge pyrotechnic circuit breaker designed for rapid and reliable protection in high-voltage applications.
- The PyroFuse offers exceptional performance with a high continuous current-carrying capability of up to 500A and a rapid disconnect time of less than 1 millisecond.
- Ideal for automotive, charging, aerospace, and industrial systems, the PyroFuse ensures enhanced safety and reliability with its high breaking capacity and excellent post-isolation resistance.

The STPS500 series PyroFuse is engineered to provide rapid and reliable protection for automotive, charging, aerospace, and industrial systems.
As electrification across industries increases system currents, voltages, and associated risks, the PyroFuse addresses the critical need for advanced safety solutions to protect high-voltage systems and ensure operational reliability. Sensata’s STPS500 series PyroFuse quickly disconnects the load in the event of a short circuit or accident, safeguarding both the vehicle occupants and electrical system. Compared to traditionally used thermal fuses, Sensata’s PyroFuse offers faster and more reliable circuit interruption, providing immediate protection against electrical faults with a disconnect time of less than 1 millisecond.
The PyroFuse features a high breaking capacity, capable of interrupting currents of up to 20,000A at 500V and 16,000A at 1000V, offering exceptional protection in high-energy environments. Additionally, it can handle up to 500A of continuous current at 1000V, delivering robust performance in demanding applications.
Key features and benefits of Sensata’s STPS500 series PyroFuse include:
- Superior Sealing Performance: Enhanced arc suppression prevents the release of gases during a breaking event, protecting other components around the device.
- Pairing with Sensata Contactors: Leveraging Sensata’s portfolio of high voltage contactors allows for optimization of technical requirements for both devices, paired in-house validation testing, and the ability for OEMs to partner with one supplier for both product needs.
- Excellent Post-Isolation Resistance: Maintains high isolation resistance over 50MΩ at 1000V after breaking, ensuring continued safety and reliability.
- Compact and Lightweight Design: Integrates seamlessly into existing systems without adding significant weight or bulk, making it ideal for space-constrained applications.
Mark McBrine, Product Line Owner, Electrification at Sensata Technologies, said: "Our new PyroFuse provides rapid and reliable protection in high-voltage applications, enhancing system safety and reliability. This launch highlights our commitment to safety, performance, and innovation in vehicle electrification."
Visit Sensata Technologies at ACT Expo from April 28-30 in booth 6811 to learn more about its PyroFuse and innovations in high-voltage switching, sensing, protection, charging control, and power distribution.
For more information about Sensata’s STPS500 PyroFuse, visit www2.sensata.com/pyrofuse.
About Sensata Technologies
Sensata Technologies is a global industrial technology company striving to create a safer, cleaner, more efficient and electrified world. Through its broad portfolio of mission-critical sensors, electrical protection components and sensor-rich solutions, Sensata helps its customers address increasingly complex engineering and operating performance requirements. With more than 18,000 employees and global operations in 14 countries, Sensata serves customers in the automotive, heavy vehicle & off-road, industrial, and aerospace markets. Learn more at sensata.com and follow Sensata on LinkedIn, Facebook, Instagram and X.
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Investor Contact:
James Entwistle
+1 (508) 954-1561
jentwistle@sensata.com
Media Contact:
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+1 (805) 452-2165
leila.beardsmore@sensata.com
Source: Sensata Technologies