TEXAS INSTRUMENTS

 TIP641 

Power Bipolar Transistor, 10A I(C), 80V V(BR)CEO, 08Mhz, 1-Element, NPN, Silicon, TO-3, Metal, 2 Pin

SPECIFICATIONS: 

TIP641 primarily refers to a legacy NPN Darlington-connected silicon power transistor manufactured by companies like Texas Instruments. 
TIP641 Power Transistor
If you are working on an electronics or repair project, the TIP641 is part of a monolithic Darlington transistor family (TIP640, TIP641, TIP642).
  • Type: NPN Silicon Darlington
  • Max Collector Current IC): 10 A
  • Collector-Emitter Breakdown Voltage VCEO: 80 V
  • Package Type: TO-3 (metal can, 2-pin)
  • Common Uses: Power switching, linear amplifiers, and power supplies.