This is one of the semiconductor types. This part name is TYN412.
This product has HIGH SURGE CAPABILITY HIGH ON-STATE CURRENT HIGH STABILITY AND RELIABILITY functions.
Manufacturers of product is STMicroelectronics.
Image and pinout :
TYN412 PDF Datasheet
Some of the text files within the PDF file
TXN/TYN 0512 —> TXN/TYN 1012 SCR . . . . FEATURES HIGH SURGE CAPABILITY HIGH ON-STATE CURRENT HIGH STABILITY AND RELIABILITY TXN Serie : INSULATED VOLTAGE = 2500V(RMS) (UL RECOGNIZED : E81734) DESCRIPTION The TYN/TXN 0512 —> TYN/TXN 1012 Family of Silicon Controlled Rectifiers uses a high performance glass passivated technology. This general purpose Family of Silicon Controlled Rectifiers is designed for power supplies up to 400Hz on resistive or inductive load. ABSOLUTE RATINGS (limiting values) Symbol IT(RMS) IT(AV) ITSM RMS on-state current (180° conduction angle) Average on-state current (180° conduction angle,single phase circuit) Non repetitive surge peak on-state current ( Tj initial = 25°C ) I2 t value Critical rate of rise of on-state current Gate supply : IG = 100 mA diG/dt = 1 A/µs Storage and operating junction temperature range Maximum lead temperature for soldering during 10 s at 4.5 mm from case Parameter TXN TYN TXN TYN Tc=80°C Tc=90°C Tc=80°C Tc=90°C tp= [ … ]
Please refer to the file for details.