2N639

Technical Characteristics

• Overall Length

  1.573 inches maximum

• Overall Height

  0.450 inches maximum

• Joint Electronic Device Engineering Council/Jedec/Case Outline Designation

  to-3

• Semiconductor Material

  germanium

• Voltage Rating In Volts Per Characteristic

  40.0 maximum breakdown voltage,emitter-to-base,collector open

• Power Rating Per Characteristic

  25.0 watts maximum collector power dissipation

• Transfer Ratio

  30.0 maximum static forward current transfer ratio,common-emitter

• Terminal Type And Quantity

  2 pin and 1 case

• Inclosure Material

  metal

• Terminal Length

  0.312 inches minimum

• Overall Width

  1.050 inches maximum

• Internal Configuration

  junction contact

• Internal Junction Configuration

  pnp

• Mounting Method

  terminal

• Features Provided

  hermetically sealed case

• Current Rating Per Characteristic

  5.00 amperes maximum collector current,dc and 0.50 amperes maximum base current,dc

• Maximum Operating Temp Per Measurement Point

  100.0 deg celsius junction