STMICROELECTRONICS TS420-600T 4A Sensitive Gate Thyristor, TO-220AB

The TS420-600T from STMICROELECTRONICS is a highly sensitive gate Silicon Controlled Rectifier (SCR). It is designed to deliver a reliable and optimized performance, requiring a gate trigger current of just 200 µA, which allows it to be used in all applications where the available gate current is limited. With a generous on-state RMS current of 4 A, it is a robust component for a range of power control tasks, all within a compact, space-saving TO-220AB package.

The thyristor is designed for through-hole mounting, providing a secure and stable connection on a printed circuit board. Its maximum operating temperature of 125°C ensures reliable function even in demanding thermal environments. The component is supplied in a 3-pin TO-220AB case style, offering a standardised and widely supported footprint for ease of design and assembly.

Key Specifications

• On-State RMS Current: 4 A
• Average On-State Current: 2.5 A
• Repetitive Peak Off-State Voltage (Vdrm/Vrrm): 600 V
• Gate Trigger Current (IGT): 0.2 mA (200 µA)
• Gate Trigger Voltage Max: 800 mV
• Holding Current Max: 5 mA
• Peak Non-Repetitive Surge Current: 30 A
• Case Style: TO-220AB
• Mounting Type: Through Hole
• No. of Pins: 3
• Operating Temperature Max: 125 °C
• Dimensions (HxWxD): 43 mm x 33 mm x 15 mm
• Weight: 2 g