2N4957

Technical Characteristics

• Inclosure Material

  metal

• Overall Length

  0.210 inches maximum

• Terminal Length

  0.500 inches minimum

• Overall Diameter

  0.230 inches maximum

• Internal Configuration

  junction contact

• Internal Junction Configuration

  pnp

• Mounting Method

  terminal

• Terminal Circle Diameter

  0.100 inches nominal

• Features Provided

  hermetically sealed case

• Semiconductor Material

  silicon

• Current Rating Per Characteristic

  30.00 milliamperes maximum collector current,dc

• Power Rating Per Characteristic

  200.0 milliwatts maximum total device dissipation

• Transfer Ratio

  20.0 minimum static forward current transfer ratio,common-emitter

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

  to-72

• Voltage Rating In Volts Per Characteristic

  30.0 maximum breakdown voltage,collector-to-base,emitter open and 30.0 maximum breakdown voltage,collector-to-emitter,base open and 3.0 maximum breakdown voltage,emitter-to-base,collector open

• Terminal Type And Quantity

  4 uninsulated wire lead