OverviewΒ
The S9014 is a high-gain, low-noise NPN bipolar junction transistor (BJT). While other transistors might introduce a “hiss” or static into audio circuits, the S9014 is engineered to keep signals clean. With a DC current gain ($h_{FE}$) that can reach up to 1000, it is incredibly sensitive, making it perfect for magnifying tiny electrical signals from sensors or microphones before they reach your Arduino or amplifier.
Key Features
Ultra-Low Noise Figure: Specifically designed to minimize background electrical noise in audio and signal paths.
High Current Gain: Offers a massive $h_{FE}$ range, allowing you to switch or amplify with very little base current.
Wide Voltage Range: With a 45V-50V breakdown voltage, itβs robust enough for most 5V, 9V, and 12V hobbyist projects.
TO-92 Package: The classic three-pin design that fits easily into breadboards, PCBs, and stripboards.
Technical Specifications βοΈ
| Feature | Specification |
| Transistor Type | NPN (Low Noise / High Gain) |
| Max Collector Current ($I_C$) | 100mA to 150mA |
| Max Collector-Emitter Voltage ($V_{CEO}$) | 45V |
| Max Collector-Base Voltage ($V_{CBO}$) | 50V |
| Noise Figure ($NF$) | 10 dB (Max) |
| DC Current Gain ($h_{FE}$) | 60 to 1000 (Varies by Grade) |
| Power Dissipation ($P_c$) | 400mW |
| Package Type | TO-92 |
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