2SC945 C945 50V 0.15A Bipolar NPN Transistor

Condition: New
Availability: In Stock
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SKU: 637719001527650572

Rs.5 Rs. 6

Bipolar NPN Transistor is an age-old Japanese Bipolar audio frequency NPN transistor. 2SC945 50V NPN transistor has a decent gain value (hfe) of maximum 700 and is highly linear. Hence this bipolar transistor was widely used in amplifier applications for pre-amplifying purpose, in high-frequency circuits. This NPN junction transistor is also used as oscillators with is complementary A733 PNP transistor. When used as a switch it can easily be controlled by an MCU/MPU since it has a base voltage of only 5V. C945 transistor NPN can switch loads up to 50V but has a very low collector current rating of the only 150mA so this transistor is not really a good choice to be used as a switch. A better alternative for switching applications will be 2N2222.

Features Of 2SC945 Best Bipolar NPN Transistor:

  • 2sc925 well known as C945 NPN transistor.
  • Max Voltage Collector Emmiter=50 V.
  • Max Collector current=150 mA.
  • Collector power dissipation: 400 mW.
  • Japanese High-frequency amplifier NPN Transistor.
  • Current Gain (hFE) is 70 to 700 (high linearity).
  • Continuous Collector current (IC) is 150mA.
  • Collector-Emitter voltage (VCEO) is 50 V.
  • Collector-Base voltage (VCB0) is 60V.
  • Emitter Base Voltage (VBE0) is 5V.
  • Transition Frequency is 150MHz.

Specifications Of Amplifier High-Frequency OSC NPN Transistor:

  1. Type of transistor: NPN
  2. Polarisation: Bipolar
  3. Collector-Base Breakdown Voltage: 60V
  4. Collector-Emitter Breakdown Voltage: 50V
  5. Collector current: 150mA
  6. Power: 250mW
  7. Case: TO92
  8. Mounting: THT
  9. Frequency: 250MHz

Pin Description:

  1. Emitter: Current Drains out through emitter, normally connected to ground
  2. Collector: Current flows in through collector, normally connected to load
  3. Base: Controls the biasing of the transistor, Used to turn ON or OFF the transistor


  • Low current switches
  • Pre-amplifiers
  • H-bridge circuits for low power motors
  • Audio frequency amplifier circuits
  • Oscillator circuits

Package Includes:

  • 1 x 2SC945 Bipolar NPN Transistor

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Naveed - July 07, 2022