Part Number: 40TTS12PBF
Function: 350A, 1200V, Phase Control SCR
Package: TO-220 Type
Manufacturer: International Rectifier, ( https://www.infineon.com/ )
Image and Pinouts:
The 40TTS12PBF is 350A, 1200V, Phase Control SCR.
The 40TTS12 SAFEIR series of silicon controlled rectifiers are specifically designed for medium power switching and phase control applications. The glass passivation technology used has reliable operation up to 140°C junction temperature.
Typical applications are in input rectification (soft start) and these products are designed to be used with International Rectifier input diodes, switches and output rectifiers which are available in identical package outlines.
A Silicon Controlled Rectifier (SCR) is a type of semiconductor device that is widely used as a switch or rectifier in power control and voltage regulation circuits. It is a three-layer, four-terminal device that can control the flow of current in either direction and provide full-wave rectification in power conversion applications.
The SCR can be triggered or turned on by a small trigger current or voltage applied to its gate terminal, and it remains in the conducting state as long as the anode-to-cathode voltage is positive and the gate trigger current is maintained. The SCR can be turned off by reducing the anode-to-cathode voltage to zero or by removing the gate trigger current.
Typical usage is in input rectification crowbar (soft start) and AC switch in motor control, UPS, welding, and battery charge
Other data sheets are available within the file: 40TTS12