Tutorial: BF244A / 2N3819

Provides switching, rectification or protection depending on its technology.

BF244A / 2N3819

Tutorial / documentation

Transistors & diodes

Quick documentation & first test preparation

  1. Identify component BF244A and its package.
  2. Identify the terminals and polarity of the selected package.
  3. Check voltage, current, dissipation and drive conditions.
  4. Consult the application circuit in the linked documentation before testing.

BF244A

50mA Id, 30V Vgs, N-Channel FET Transistor, TO-92

  • 50mA Id, 30V Vgs, N-Channel FET Transistor, TO-92
  • Identify the terminals and polarity of the selected package.
  • Check voltage, current, dissipation and drive conditions.
  • The manufacturer’s pinout and absolute limits take precedence over this page.
Technical documentation

2N3819

20mA Id, 25V Vgs, N-Channel JFET Transistor, TO-92

  • 20mA Id, 25V Vgs, N-Channel JFET Transistor, TO-92
  • Identify the terminals and polarity of the selected package.
  • Check voltage, current, dissipation and drive conditions.
  • The manufacturer’s pinout and absolute limits take precedence over this page.
Technical documentation

Inputs and outputs must match the function described in the selected reference’s documentation.