Automotive TVS diodes offer industry-leading low clamping voltage

Littelfuse, Inc. has launched the TPSMB-L Series Automotive TVS Diodes, designed explicitly for BMS in 800V EVs. These innovative diodes feature an industry-leading ultra-low clamping voltage (Vcl), delivering superior protection for sensitive components such as AFE and BMICs.

The series addresses the growing demand for reliable, high-performance components in the fast-expanding EV market. With a focus on safety and reliability, these diodes fulfil the rigorous requirements of ISO-26262, the global standard for functional safety in automotive systems, ensuring optimal performance in critical BMS applications.

The series is AEC-Q101 qualified with PPAP Level 3 compliance, meeting the stringent standards of automotive applications. It offers 600W peak pulse power capability in a compact SMB DO-214AA package. The wide application range is designed for 14- to 20-cell BMS configurations, ideal for high-voltage EV battery systems. The fast response time protects against ESD and transient voltage surges.

“With the growing complexity and power demands of electric vehicle systems, protecting critical electronics components like AFEs and Battery Management Systems ICs is more important than ever,” said Charlie Cai, director of Product Management, Protection Business at Littelfuse. “By combining ultra-low clamping voltage with automotive-grade performance, the TPSMB-L Series empowers engineers to meet stringent functional safety standards like ISO-26262 while providing robust reliability.”