Basic Information of Transistor C1815

The transistor C1815 is used in a number of different educational and commercial electronic projects. Anytime audio frequency amplification is desired, the transistor C1815 will probably be used in the electronic device. Its collector-base voltage is 50 volts, so any circuit with under 50 volts can use the transistor.

Here are the technical specifications of transistor C1815:

  • Max Collector-Emitter Voltage: 50V
  • Max Collector-Base Voltage: 60V
  • Max Collector Current: 150mA
  • Max Emitter-Base Voltage: 5V
  • Max Collector Dissipation: 400 mW
  • Max Transition Frequency: 80 MHz
  • Minimum DC Current Gain: 70
  • Maximum DC Current Gain: 700

There are different audio amplification stages in which the C1815 transistor can be utilized. It can be used as a small audio amplifier, preamplifier, and as a switch for electronic circuits. The C1815 transistor has the ability to drive relays for low power LED lighting, high powered transistors, and any other component of an electronic circuit.

Suppose you need to replace the C1815 transistor in an electronic device or replace another transistor with the C1815 transistor. In that case, you need to know which transistors are the equivalent of a C1815 transistor in terms of specifications. Here are some of the equivalent transistors:

  • C945
  • C3920
  • C3916
  • C3922
  • C3921
  • C3919
  • C3917

However, these other transistors could have a different pin configuration. If you purchase an equivalent transistor, it must have the same pin configuration as the C1815 transistor. If you are not sure about which replacement is acceptable, then have an electrician help you out. BC557 is the PNP transistor of the C1815 model.

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Overall, the applications for the transistor C1815 include preamplifier circuits, Class A amplifiers, Class B amplifiers, Push/Pull configuration circuits, and all types of switching actions in electronic devices. Virtually all audio amplification devices must perform these electrical actions.