BC856BW-AQ

Overview

The BC856BW-AQ is a PNP general-purpose small-signal transistor manufactured by Diotec Semiconductor. It features a maximum collector-emitter voltage of -65 V and a continuous collector current of -100 mA, with a peak collector current rating of 200 mA. The device dissipates up to 200 mW of power and operates within a junction temperature range of -55°C to +150°C. It utilizes an SOT-323 surface-mount package and offers three distinct DC current gain groups (A, B, C) with minimum hFE values of 125, 220, and 420 respectively at -IC = 2 mA and -VCE = 5 V. The component is AEC-Q101 qualified.

Feature Summary

• AEC-Q101 qualified for automotive reliability standards
• Three selectable DC current gain groups for precise amplification control
• RoHS compliant and free from conflict minerals

Applications

• Signal processing circuits
• General purpose switching applications
• Amplification stages in commercial and industrial electronics

Procurement Notes

Verify the specific suffix 'AQ' to confirm AEC-Q101 qualification status, as standard versions lack this automotive grade certification. Ensure the selected gain group matches the circuit requirements, as the datasheet defines three distinct performance tiers. Confirm compliance with RoHS and REACH regulations if required by the end product specifications.

Selection Notes

Select the BC856BW-AQ when an AEC-Q101 qualified PNP transistor is required for automotive or high-reliability environments. Choose based on the necessary current gain group: Group A for lower gain needs, Group B for standard amplification, or Group C for high-gain applications. Ensure the design accommodates the 200 mW power dissipation limit and the -65 V collector-emitter breakdown voltage.

Part Context

This component belongs to the BC856W series of SMD general-purpose PNP transistors. It serves as the automotive-grade equivalent to the standard BC856BW, sharing identical electrical characteristics but meeting stricter AEC-Q101 qualification protocols. It is part of a broader family that includes complementary NPN devices like the BC846W.

Replacement Considerations

Direct substitutes include other AEC-Q101 qualified PNP transistors in the SOT-323 package. Verify that any replacement meets the -65 V VCEO and -100 mA IC ratings. Standard BC856BW parts are electrically similar but lack the automotive qualification.