BC817-40 – PHILIPS
NPN Bipolar Transistor, 0.8 A, 45 V, SOT‑23 Package
Stock Quantity: 3780
Selling Unit: Each
| Quantity | Price (ex VAT) |
|---|---|
| 1+ | 0.17 |
| 10+ | |
| 50+ | |
| 100+ |
3780 in stock
Contact us for volume pricing
- Same day shipping if ordered before 14.00 GMT
- 6 month warranty on all stock items
- All stock held and shipped from our UK warehouse
- Worldwide shipping available, contact us for a quotation
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- Any import duties or taxes are the responsibility of the receiver
Overview
The PHILIPS BC817-40 is a high-performance NPN bipolar junction transistor designed for versatile applications in switching and medium-power amplification circuits. Its key strength lies in its high collector current capability and excellent DC current gain (hFE), enabling efficient signal control and amplification. A critical design consideration when utilizing the BC817-40 in high-frequency switching applications is managing its transient response and potential parasitic capacitances to prevent signal distortion and ensure stable operation, a trade-off inherent in many general-purpose discrete semiconductor devices.
Key Features
- NPN Transistor Polarity
- Continuous Collector Current: Up to 800mA
- DC Current Gain (hFE) Min: 250
- Collector Emitter Voltage (Vce) Max: 45V
- Transition Frequency (fT): 100MHz
- SOT-23 Surface Mount Package
Applications
The component is engineered for deployment in systems requiring high reliability and performance under specific operating conditions. It provides functional stability across the stated design envelope.
- Low-power DC-DC converter switching stages
- General-purpose signal amplification in audio pre-amplifiers
- Driving small loads in consumer electronics
- Logic level shifting in microcontroller interfaces
