BC 857BF E6327

Single Bipolar Transistors Overview

The BC857BF E6327 is a PNP bipolar junction transistor manufactured by Infineon Technologies. It utilizes silicon technology and is housed in an SOT-23-3 surface-mount package. The device supports a maximum DC collector current of 100 mA and a collector-emitter voltage (VCEO) of 45 V. Key electrical parameters include a collector-base voltage (VCBO) of 50 V, an emitter-base voltage (VEBO) of 5 V, and a power dissipation (Pd) of 330 mW. The component features a transition frequency (fT) of 250 MHz and operates within a temperature range of -65°C to +150°C. It is AEC-Q100 qualified and belongs to the BC857 series.

Single Bipolar Transistors Feature Summary

• AEC-Q100 automotive qualification for enhanced reliability
• High DC current gain with minimum value of 420
• Silicon planar epitaxial construction

Single Bipolar Transistors Applications

• General-purpose switching applications
• Amplifier circuits
• Automotive electronics systems

Single Bipolar Transistors Procurement Notes

Verify the specific suffix 'BF' against official Infineon documentation to confirm the exact hFE binning class, as this determines the minimum gain threshold. Confirm the active status or obsolescence timeline directly with the manufacturer, as lifecycle statuses can change. Ensure the ordering part number matches the required gain specification for your design before procurement.

Single Bipolar Transistors Selection Notes

Select this component when a PNP transistor with high current gain (minimum 420) is required in a compact SOT-23-3 package. It is suitable for designs needing AEC-Q100 compliance. Compare its 45 V rating and 100 mA limit against circuit requirements. Consider the BC857BE variant if a lower gain range is acceptable, or the BC857C variant for even higher gain specifications.

Single Bipolar Transistors Part Context

This component is part of the BC857 family of general-purpose PNP transistors from Infineon. The family includes variants distinguished by their DC current gain ranges, such as BE, BF, and C. These devices are widely used in consumer and industrial electronics due to their small form factor and robust performance characteristics.

Single Bipolar Transistors Replacement Considerations

Check for direct substitutes like BC857BE or BC857C from Infineon, noting that gain ranges differ. Other manufacturers offer pin-compatible PNP transistors in SOT-23 packages, but verify voltage ratings and gain specifications match the original design requirements.