Vishay Dual Thyristor Module TO-240AA Package 1400 V Repetitive Peak Reverse Voltage 2 kA Surge Current Rating VSKT91/14

Vishay VSKT91/14 dual thyristor module in a TO-240AA package is designed for industrial applications needing reliable, high-current switching. It features a repetitive peak reverse voltage rating of 1400 V and surge current rating of 2 kA, suitable for demanding electrical environments such as battery chargers, welders, plating equipment, and speed or temperature control circuits.

The module provides a rated average on-state current (Irms) of 95 A and a maximum operating temperature of 125°C, ensuring durability in rugged uses. It incorporates a low peak on-state voltage of 1.73 V to minimize energy losses during conduction. The maximum gate trigger current is 270 mA, allowing precise triggering control, and the maximum holding current is 250 mA to maintain stable operation.

Its compact form factor of 92 mm length, 22.6 mm width, and 30 mm height with a 7-pin design enables easy panel mounting. The electrically isolated base plate improves safety and flexibility in installation. This solid-state device operates as a bistable switch and is synonymous with a silicon-controlled rectifier (SCR), making it suitable for various power electronics and industrial control applications.

Features TO-240AA package with 7 pins for panel mounting convenience. Repetitive peak reverse voltage of 1400 V supports high voltage environments. Surge current rating of 2 kA allows handling of transient currents. High rated on-state current at 95 A ensures efficient power conduction.

Maximum operating temperature of 125°C increases reliability under heat stress. Low peak on-state voltage of 1.73 V reduces conduction losses. Max gate trigger current of 270 mA enables accurate switching control. Max holding current of 250 mA ensures consistent operation post-trigger.

This Vishay Thyristor Module is widely used in industrial power electronics, HVAC controls, battery charging systems, and manufacturing process controls where durable, efficient semiconductor switching components are essential.

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