Overview
The S9012 is a silicon PNP bipolar junction transistor (BJT) housed in the standard TO-92 package. It is specifically designed for low-voltage, high-current applications. If you are building a circuit that needs to switch a load on the “high side” (positive side), the S9012 is a fantastic choice. It is commonly used as a complementary pair with the S9013 NPN transistor in Class B audio amplifiers and push-pull motor drivers.
Key Features
Higher Current Rating: Unlike the 100mA-rated BC557, the S9012 handles up to 500mA continuous current.
Compact TO-92 Form Factor: Fits perfectly into breadboards and perf-boards.
Excellent Linearity: High gain ($h_{FE}$) makes it suitable for audio amplification and signal processing.
Low Saturation Voltage: Ensures minimal power loss when used as a switch.
Technical Specifications
| Feature | Specification |
| Transistor Type | PNP (General Purpose) |
| Max Collector Current ($I_C$) | 500mA (0.5A) |
| Max Collector-Emitter Voltage ($V_{CEO}$) | 25V |
| Max Collector-Base Voltage ($V_{CBO}$) | 40V |
| DC Current Gain ($h_{FE}$) | 64 to 300 |
| Total Dissipation ($P_c$) | 625mW |
| Package Type | TO-92 (Plastic) |
| Operating Temperature | -55°C to +150°C |
Reviews
Clear filtersThere are no reviews yet.