High-temperature silicon-controlled rectifiers (SCRs), or thyristors, are designed to improve the reliability of applications such as overvoltage crowbar protection and motor control circuits in power tools and kitchen aids, inrush current-limiters, capacitive discharge ignition systems and voltage regulators. Perfectly suited for automotive stationary battery chargers, uninterruptible power supplies, industrial power supplies, motorbike voltage regulators and motor drive applications, they help reduce costs by using smaller heatsinks.
Their voltage robustness up to 1200 V, high noise immunity and power dissipation performance at 150 °C Tj are key features for functions such as AC switches, AC phasing inverters, and AC-DC controlled rectifier bridges.

Available in SMD as well as through-hole-isolated and non-isolated packages, ST's high-Tj SCRs feature:
• a very low gate-triggering current (600 V SCRs only)
• a peak off-state voltage (blocking voltage) from 600 V up to 1200 V
• a maximum on-state current from 12 A to 50 A
• a maximum junction temperature of 150°C

20 A on-state RMS current-rated SCRs with enhanced immunity

ST's new series of 20 A silicon controlled rectifiers (SCRs) joins our existing 12 to 50 A range of high-temperature thyristors.
The new TN2010H series of SCRs have a narrow spread gate-triggering current – 10 mA –  than previous generations, while delivering high electrical noise immunity and further improving the reliability of the end products. Operating with junction temperatures of up to 150 °C, these SCRs are available in 3 package versions:

       • D²PAK as TN2010H-6G and -6G-TR
       • TO-220AB as TN2010H-6T
       • TO-220FPAB insulated package as TN2010H-6FP

Designed for low profile and reduced power consumption modules, these are ideal for solid-state relays, SMPS or battery chargers. 

First automotive-grade thyristor (SCR) in D²PAK package

ST extends its 1200 V SCR series with the TN3050H-12GY-TR, an automotive-grade 30 A thyristor. Designed for 2 to 7 kW on-board chargers in bridge or bridgeless topologies, it also fits AC-DC rectification in UPS and battery charger applications, motor drives or the back-to-back switch of solid-state relays. Fully rated at 150 °C and housed in the D²PAK package, it offers a robust switch – 1 kV/µs immunity, 1400 V surge – for compact SMD design with full AEC-Q101 compliance.
A TO-247 package version also exists, the  TN3050H-12WY.

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