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The C1815 is a 50V 150mA general purpose NPN transistor with a maximum gain value of 700.  This makes the transistor suitable for amplifier applications.


C1815 Transistor Pinout Configuration

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



  • General Purpose NPN Transistor
  • DC Current Gain (hFE) 70 to 700
  • Continuous Collector current (IC) is 0.15A
  • Collector-Emitter voltage (VCE) is 50V
  • Collector-Base voltage (VCB) is 60V
  • Transition Frequency: 80MHz
  • Available in To-92 Package


Note: Complete Technical Details can be found at the C1815 datasheet given at the end of this page.

Complementary PNP Transistor: 2SC1015

Equivalent NPN Transistor: 2SC2712, 2SC4116, 2SC4738


Where to use 2SC1815

The C1815 is a general purpose NPN transistor that is commonly used in Amplifier applications. There are four variants, the 2SC1815O will have a gain value of 70 to 140 and the 2SC1815Y will have 1020 to 240, the 2SC1815GR will have 200 to 400 and the 2SC1815L will have a gain range from 350 to 700.

This NPN transistor also has its counterpart PNP transistor the 2SC1015, which makes it ideal for Push-pull and class B amplifier designs. Apart from this the transistor can also be used for switching low power devices.



  • General purpose switching
  • Class B amplifiers
  • Pre-amplifier circuits
  • Push-Pull configuration circuits



2D dimensions will help you in placing this component at the time of making circuit on perf board or a PCB.

2SC1815 NPN Transistor 2-D Model

Component Datasheet
C1815 Transistor Datasheet

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