BC307

Single Bipolar Transistors Overview

The onsemi BC307 is a PNP epitaxial silicon small-signal transistor designed for switching and amplifier applications. It features a collector-emitter voltage of -45V and a continuous collector current of -100mA, with a maximum power dissipation of 500mW. The device offers a DC current gain (hFE) ranging from 120 to 800 depending on the classification grade. Key electrical characteristics include a transition frequency of 130MHz and low noise performance suitable for audio and signal processing circuits.

Single Bipolar Transistors Feature Summary

• PNP epitaxial silicon construction optimized for general-purpose switching and amplification tasks
• Low noise figure specification supporting high-fidelity audio and sensitive signal processing applications
• High DC current gain capability across multiple classification grades for flexible circuit design

Single Bipolar Transistors Applications

• General-purpose switching circuits
• Audio amplifier stages
• Signal processing applications

Single Bipolar Transistors Procurement Notes

Verify the specific hFE classification grade required for your application, as gain ranges vary significantly between A, B, and C grades. Confirm package compatibility with TO-92 footprints during integration. Check datasheet revisions for any updates to absolute maximum ratings or thermal characteristics before finalizing designs.

Single Bipolar Transistors Selection Notes

Select the BC307 when a PNP transistor with moderate voltage handling and low noise characteristics is needed. Compare hFE grades against circuit requirements; higher gain grades offer tighter tolerances but may impact cost. Ensure operating conditions remain within the specified junction temperature limits to maintain reliability.

Single Bipolar Transistors Part Context

This component belongs to the BC30x series, which includes the BC307, BC308, and BC309 variants. These transistors share similar physical packages and basic operational principles but differ in breakdown voltages and noise specifications. The BC307 specifically targets applications requiring a balance of voltage rating and amplification capabilities.

Single Bipolar Transistors Replacement Considerations

Direct substitutes include other PNP transistors with matching -45V VCEO and -100mA IC ratings. Verify pinout compatibility with the standard TO-92 configuration. Consider alternative parts if lower noise figures are required, such as those found in the BC309 variant.