2N2646 / 2N2647

Provides switching, rectification or protection depending on its technology.

Tutorial / documentation

Transistors & diodes

Quick documentation & first test preparation

  1. Identify component 2N2646 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.

2N2646

Unijunction Transistor, TO-18

  • Unijunction Transistor, TO-18
  • 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

2N2647

Unijunction Transistor, TO-18

  • Unijunction Transistor, TO-18
  • 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