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The C1815 NPN Transistor, commonly identified as 2SC1815, is a general-purpose bipolar junction transistor (BJT) designed primarily for small-signal amplification, switching, and electronic control applications. Its low-power characteristics make it suitable for audio, sensor, oscillator, and signal-processing circuits.
The transistor's compact through-hole package makes it convenient for use in breadboards, PCBs, prototypes, and electronic repair projects.
Transistor type: NPN BJT
Common designation: 2SC1815
Designed for small-signal amplification
Suitable for low-power switching
Compact through-hole package
Three-terminal configuration: Collector, Base, Emitter
Suitable for audio and signal circuits
Easy to integrate into electronic projects
Small-signal amplification
Audio amplifier and preamplifier circuits
Sensor interface circuits
Signal processing
Oscillator circuits
Low-power switching
Arduino and microcontroller projects
Electronic control circuits
DIY and educational electronics
The C1815 General-Purpose NPN Transistor is a practical component for small-signal amplification and switching, making it suitable for hobbyists, students, technicians, and electronics developers.