The lower power losses of high-temperature silicon-controlled rectifiers (SCRs) allow higher power density at 150°C, enabling circuits to draw more current or reduce heatsink in all inrush current limiters, converters, and solid-state relays. These devices benefit from ST design and process technologies to ensure maximum transient immunity for the lowest gate triggering current. High-temperature thyristors are part of the STPOWER family of performance devices and modules for a wide range of applications.
Applications
Automotive
Product types
The new 16 A, 800 V thyristor in TO-220 insulated package is used in controlled rectifier bridges, AC relays, and for HV crowbar protection in SMPS, and is perfectly suited for compact power modules with 500 V/µs noise immunity. Also, for motorcycle voltage regulators or motor starters, the 150°C junction temperature enables extra design flexibility for smaller heatsinks and higher load control.
Portfolio
Combined with the innovative surface mount D2PAK package, these benchmark quality SCR lines further contribute to solution designs targeting high power density in EV battery chargers, industrial power supplies, charging stations, motorbike voltage regulators, motor drive applications, and uninterruptible power supply (UPS) converters. The expanding 1200 V automotive grade SCR range similarly allows more compact systems and higher current capability in 2- and 4-wheel mobility applications.

Benefits
- Available in SMD and through-hole isolated and nonisolated packages, ST high-Tj SCRs feature:
- Very low gate-triggering current (600 V SCRs only)
- Peak off-state voltage (blocking voltage) from 600 to 1200 V
- Maximum on-state current from 12 to 80 A
- Maximum junction temperature of 150°C
Discover how to protect against larger voltage spikes with high-temperature thyristors such as the TN5015H-6G (50 A on-state current, 600 V off-state voltage).