BT151 is a medium power 12A silicon-controlled rectifier that comes in a TO-220 package that can be used to switch medium power AC/DC loads and can handle high DC pulses.
Specifications
Maximum anode-cathode voltage (off state): 650V
Maximum RMS current: 12A
Pulsed DC current: 120A
Gate trigger current: 15mA max.
Holding current: 20mA max.
Latching current: 40mA max.
Available in the TO-220AB package.
Applications
Ignition circuits
Protection circuits
Motor control
Static switching