TYN840 ,40A SCR - TO-220AB Package, 600V/800V/1000V High Surge Silicon-Controlled Rectifier

The TYN840 is a robust 40A Silicon-Controlled Rectifier (SCR) designed for applications requiring high current and surge handling capabilities. Manufactured by STMicroelectronics, this SCR is packaged in the TO-220AB format, providing an optimal balance of thermal efficiency and compact design. With voltage ratings up to 1000V, it is well-suited for use in demanding industrial and power electronic applications, including crowbar protection circuits, in-rush current limiting in power supplies, high-power motor control, and welding equipment.

Featuring a low gate trigger voltage of 1.3V and gate trigger current options from 3.5mA to 35mA, the TYN840 is compatible with a range of control circuits and can be triggered with minimal energy. Its high non-repetitive peak on-state current (ITSM) of 480A (50Hz) allows it to withstand significant surges, ensuring reliable performance in circuits with high inrush currents. Additionally, the device operates reliably across a wide temperature range from -40°C to +125°C, making it suitable for use in harsh environments and industrial-grade systems.

Key Features :

• High Surge Capability: Can handle non-repetitive peak on-state currents up to 480A, ideal for inrush protection and high-current loads.
• Wide Voltage Ratings: Available in models rated at 600V, 800V, and 1000V, covering diverse application requirements.
• Thermal Efficiency: Junction-to-case thermal resistance of 0.8°C/W, ensuring stable operation under high loads.
• Low Gate Trigger Requirements: Vgt of 1.3V max and Igt from 3.5mA to 35mA for versatile control options.
• Extended Operating Range: Operates efficiently from -40°C to +125°C, making it suitable for industrial and high-stress applications.
• Standard TO-220AB Mounting: Ensures easy installation and integration, compatible with standard heatsinks.