BC107B NPN Transistor TO-18

The BC107B is a NPN bipolar transistor in a TO-18 metal package, designed for general-purpose analogue and signal applications. The manufacturer describes it as a low-noise device suitable for driver stages, low-noise input stages, and signal-processing circuits, making it a practical choice for low-power amplification and switching projects.

This model is rated for 45 V VCEO, 50 V VCBO, 6 V VEBO, and a maximum 100 mA collector current. The stated maximum power dissipation is 300 mW at 25 °C, which makes it suitable for compact through-hole assemblies in circuits designed for this power level.

In the BC107B version, the DC current gain hFE is typically in the 200 to 450 range, making it a balanced option for small-signal amplification use. The stated operating temperature range is -55 °C to +150 °C.

Features:

• NPN bipolar transistor
• Model: BC107B
• Package: TO-18-3
• Mounting: through-hole
• Application: general purpose / low noise
• Collector-emitter voltage VCEO: 45 V
• Collector-base voltage VCBO: 50 V
• Emitter-base voltage VEBO: 6 V
• Maximum collector current: 100 mA
• Maximum power dissipation: 300 mW
• DC gain hFE: 200 to 450
• Operating temperature: -55 °C to +150 °C
• Suitable for amplification, switching, driver, and audio circuits