High-temperature thyristors, or silicon-controlled rectifiers (SCR), are designed for all modes of control found in applications such as overvoltage crowbar protection, motor control circuits in power tools and kitchen aids, inrush current-limiting circuits, capacitive discharge ignition and voltage regulation circuits. They are perfectly suited for automotive stationary battery charger, uninterruptible power supply, industrial power supply, motorbike voltage regulator and motor drive applications. 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 and 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

Last ST’s introduction is the first 800V, 80-amp surface-mount TM8050H-8D3 housed in the high-voltage D3PAK (TO-268-HV), ideal for mid-power applications in the 1-10kW range to leverage surface-mount assembly efficiencies and reduce PCB and heatsink sizes, enabling to miniaturize power modules for applications that demand high reliability in harsh conditions.
The TO-247 package option – TM8050H-8W – is also available.