This is one of the NPN transistor types.
Part Number: 2SC2073
Function: NPN Power Transistor (1.5A / 150V / 25W)
Package: TO-220 Type
The manufacturers of this product is Mospec Semiconductor.
See the preview image and the PDF file for more information.
Description
The C2073 is a silicon NPN power transistor in a TO-220 package, rated for 150V collector-emitter voltage and 1.5A collector current, suitable for medium-power applications. It offers stable current gain, high voltage capability, and reliable thermal performance using advanced fabrication technology. This transistor is commonly used in general-purpose power amplifiers and vertical output stages in display and audio systems.
Features
- High collector-emitter voltage VCEO = 150V
- Collector current capability up to IC = 1.5A
- DC current gain hFE = 40~140 @ IC = 500mA
- Low saturation voltage for efficient operation
- Good thermal stability and reliability
- Complementary PNP transistor: 2SA940
- TO-220 package for effective heat dissipation
C2073 Pinout
1. Base
2. Collector
3. Emitter
4. Collector ( Case )
Absolute maximum ratings ( Ta=25°C )
1. Collector to Base Voltage: Vcbo = 150 V
2. Collector to Emitter Voltage: Vceo = 150 V
3. Emitter to Base Voltage: Vebo = 5.0 V
4. Collector Current: Ic = 1.5 A
5. Total Dissipation : Pc = 25 W
6. Junction Temperature: Tj = 150°C
7. Storage Temperature: Tsg = -55 ~ +150°C
Typical Circuit Usage
- Audio power amplifier output stages
- Vertical deflection circuits in CRT displays
- General-purpose switching applications
- Linear regulator pass transistor stages
- Driver stages in power electronics
How to Choose This Part
- Select for medium-voltage, moderate-current applications
- Suitable when TO-220 package thermal performance is required
- Ideal for amplifier circuits needing stable gain characteristics
- Consider complementary pairing with 2SA940 for push-pull designs
- Evaluate power dissipation and cooling requirements
Applications
- Power amplifiers
- CRT vertical output circuits
- Industrial control circuits
- Audio systems
- General-purpose power switching
Alternative / Equivalent Products
- 2SC4793
- TIP41C
- BD243C
- MJE13007



