BC856B-AQ

Overview

The BC856B-AQ is a PNP bipolar junction transistor manufactured by Diotec Semiconductor, designed for surface-mount applications in the SOT-323 package. It features a maximum collector-emitter voltage of -65 V and a continuous collector current of -100 mA. The device operates within a junction temperature range of -55°C to +150°C and has a maximum power dissipation of 200 mW. It meets AEC-Q101 automotive qualification standards.

Feature Summary

• Automotive-grade reliability certified under AEC-Q101 standards
• Compact SOT-323 surface-mount packaging for space-constrained designs
• Wide operating junction temperature range up to 150°C

Applications

• Automotive electronic circuits requiring qualified components
• General-purpose switching and amplification tasks
• Portable battery-powered devices

Procurement Notes

Verify the specific suffix 'AQ' confirms AEC-Q101 automotive qualification status directly with Diotec Semiconductor or authorized distributors. Ensure the ordering part number matches the exact electrical specifications required for your design, as suffixes may indicate variations in tape-and-reel packaging or binning that do not alter the core device function but affect logistics.

Selection Notes

Select this component when an automotive-qualified PNP transistor is required in a small footprint. Compare the -65 V breakdown voltage and -100 mA current limits against circuit requirements. Verify that the SOT-323 thermal characteristics support the expected power dissipation in the final assembly environment.

Part Context

This component belongs to Diotec's automotive-qualified discrete semiconductor portfolio. It serves as a PNP counterpart to NPN variants like the BC846 series, providing complementary switching capabilities in dual-transistor configurations or single-ended amplifier stages within automotive and industrial control systems.

Replacement Considerations

Publicly confirmed substitute part numbers are not available in the provided source material.