BC857S-AQ

Overview

The BC857S-AQ is a dual PNP bipolar junction transistor array manufactured by Diotec Semiconductor. It features a maximum collector-emitter voltage of 45V and a continuous collector current of 100mA. The device operates with a power dissipation of 250mW and a transition frequency of 100MHz. It is housed in a surface-mount SOT-363 package, suitable for automated assembly processes.

Feature Summary

• Dual PNP configuration within a single compact surface-mount package
• Automotive-grade qualification ensuring reliability under harsh conditions
• High switching speed capability with 100MHz transition frequency

Applications

• Automotive signal processing circuits
• General-purpose switching applications in vehicle electronics
• Logic interface stages requiring dual PNP transistors

Procurement Notes

Verify the specific suffix 'AQ' to confirm automotive grade compliance. Ensure the ordering part number matches the exact manufacturer designation. Confirm RoHS and REACH status through official documentation before integration into production lines.

Selection Notes

Select this component when dual PNP functionality is required in space-constrained automotive designs. Compare against standard BC857 variants if automotive qualification is not mandatory. Verify thermal management requirements align with the 250mW dissipation limit.

Part Context

This part belongs to the BC857 series of general-purpose PNP transistors. The 'S' indicates a dual configuration, while 'AQ' denotes automotive quality. It complements single-transistor variants like BC857B for complex circuit topologies.

Replacement Considerations

BC857S is the standard commercial equivalent. BC857S-Q may serve as an alternative automotive-grade source. Verify pinout compatibility and electrical parameters before substitution.