40TPS12A | Circuit Diagram, Equivalent, Application, Thyristor Vishay General Semiconductor - Diodes Division

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40TPS12A Pinout

The 40TPS12A is a high-performance SCR (Silicon Controlled Rectifier) designed for phase control and switching applications. Encapsulated in a TO-247 package, it features three terminals: the Cathode (K), Anode (A), and Gate (G). Understanding the pin configuration is essential for proper operation in high-voltage and current-handling circuits, such as motor control and power regulation systems.

By correctly identifying and wiring the Cathode, Anode, and Gate pins, users can ensure reliable triggering and conduction of the 40TPS12A in AC or DC circuits. This pinout arrangement supports efficient control in applications requiring precise switching and power handling capabilities.

FAQ

1. What are the main applications of the 40TPS12A?

It is commonly used in AC power control, motor drives, heater controllers, light dimmers, and solid-state relays due to its high current and voltage handling capabilities.

2. How is the 40TPS12A triggered?

The SCR is turned on by applying a small gate current between the gate (G) and cathode (K); once triggered, it remains on as long as current continues flowing from anode (A) to cathode.

3. Can the 40TPS12A be used in DC circuits?

Yes, it can be used in DC circuits, but it requires special circuitry for turning off, since SCRs naturally turn off only when the anode current drops below the holding current.