NPN Transistor – C1815 (2SC1815)
🛠️ Silicon NPN Transistor – C1815 (2SC1815)
Overview
The C1815 (also known as 2SC1815) is a versatile silicon NPN transistor in a TO‑92 package, perfect for amplification and switching applications. Capable of handling up to 150 mA and 50 V, it’s a fundamental component for hobby electronics, audio amplifiers, and low-power switching circuits.
Key Features
NPN bipolar transistor in TO‑92 package
Maximum collector current: 150 mA
Collector-emitter voltage rating: 50 V
Low noise and suitable for audio frequency amplification
High current gain (): typically 70–700 depending on variant
Transition frequency up to 80 MHz
Pinout (When flat face forward, leads downward):
Emitter (left)
Collector (middle)
Base (right)
Audio preamplifiers and amplifiers
General purpose logic-level switching
Push-pull amplifier stages
LED blinkers, chasers, and flasher circuits
Oscillators and signal generators
✅ Resources
📄 Datasheet: 2SC1815 Silicon NPN Transistor (Toshiba/Central Semi – 50 V, 150 mA)
my.centralsemi.com🎥 YouTube Tutorials:
"Top 8 Electronics Projects with C1815" – multiple starter circuits ebay.com+15youtube.com+15youtube.com+15
"DIY LED Flasher with C1815" – LED blinking example youtube.com+11youtube.com+11youtube.com+11