BC639 NPN Audio GP Transistor
BC639 NPN Audio GP Transistor
1. Polarity: NPN
2. Collector Current: 100mA max
3. VCEO: 80V
4. hFE (gain): 100-250 typical
5. Package: TO-92
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Description
The BC639 is an NPN bipolar junction transistor optimized for audio frequency and general-purpose amplifier applications. This transistor offers a high current gain and low noise, making it suitable for audio input stages and driver circuits. The BC639 is commonly used in complementary pairs with the PNP BC640.
Housed in a standard TO-92 package, the BC639 provides good thermal performance and is easy to integrate into through-hole PCB designs. Its characteristics include a moderate collector current capability and a high breakdown voltage, supporting a wide range of small-signal amplifier and switching tasks.
Features:
- NPN polarity for general-purpose use
- High current gain (hFE) typically 100-250
- Low noise for audio amplifier stages
- Collector current: up to 100mA continuous
- Collector-emitter voltage: up to 80V
- Standard TO-92 package
- Complementary to PNP BC640
- Operating temperature range: -55°C to +150°C
Specification
Specification
| WeightWeight | 1 g |
|---|---|
| Dimensions | 0,5 × 0,5 × 0,45 cm |
| Polarity | NPN |
| Package | TO-92 |
| Collector Current (IC) | 100mA max |
| Collector-Emitter Voltage (VCEO) | 80V |
| Emitter-Base Voltage (VEBO) | 5V |
| Power Dissipation (PD) | 625mW |
| DC Current Gain (hFE) | 100-250 |
| Transition Frequency (fT) | 150MHz typical |
