2N1778

Technical Characteristics

• Mounting Method

  threaded stud

• Mounting Facility Quantity

  1

• Nominal Thread Size

  0.190 inches

• Thread Series Designator

  unf

• Overall Width Across Flats

  0.437 inches maximum

• Electrode Internally-Electrically Connected To Case

  gate

• Internal Configuration

  junction contact

• Maximum Operating Temp Per Measurement Point

  125.0 deg celsius junction

• Voltage Rating In Volts Per Characteristic

  500.0 maximum breakover voltage, dc

• Features Provided

  hermetically sealed case

• Semiconductor Material

  silicon

• Current Rating Per Characteristic

  4.70 amperes source cutoff current maximum

• Special Features

  junction pattern arrangement: pnpn

• Terminal Type And Quantity

  1 threaded stud and 2 tab, solder lug

• Inclosure Material

  metal

• Power Rating Per Characteristic

  0.5 watts small-signal input power, common-collector blank

• Overall Length

  0.400 inches maximum