Description
The BC857 is a widely used PNP general-purpose transistor, perfect for small-signal amplification and switching tasks. Designed for modern electronic manufacturing, this component features a compact surface-mount (SMD) form factor, making it ideal for high-density PCB designs where space efficiency is a priority.
Offering a versatile DC current gain (hFE) between 110 and 800, the BC857 provides the flexibility needed for diverse circuit requirements. With a collector current of 100 mA and robust temperature ratings—up to a maximum junction temperature of 150°C—this transistor ensures consistent, reliable performance in professional industrial and consumer electronic applications. This pack of 20 units is a high-value, essential addition to any R&D lab or production inventory.
Key Features
- Flexible Gain: DC current gain (hFE) of 110–800 for versatile amplification
- Compact SMD Package: Optimized for high-density, space-saving circuit designs
- Reliable Performance: 45V Vce rating suitable for general signal-level switching
- Thermal Robustness: Operates reliably up to a 150°C junction temperature
- Value Bundle: Convenient 20-pack for efficient inventory and production management
Applications
- Small-signal switching and general-purpose amplification
- Driver stages for indicator LEDs and low-power relays
- Portable consumer electronics and mobile devices
- Signal processing in industrial control systems
- Automated surface-mount PCB assembly
Package Includes
- 20 x BC857 PNP Transistor
Technical Specifications
| Parameter | Specification |
|---|---|
| Part Number | BC857 |
| Polarity | PNP |
| Collector Current (Ic) | 100 mA |
| Gain (hFE) | 110 – 800 |
| Collector-Emitter Voltage (Vce) | 45 V |
| Mounting Type | Surface Mount (SMD) |
| Quantity | Pack of 20 |









