BC857SH6433XTMA1

Overview

The BC857SH6433XTMA1 is a dual PNP digital transistor from Infineon Technologies, housed in a SOT-363 surface-mount package. It integrates two PNP bipolar junction transistors with built-in base resistors to simplify circuit design and reduce component count. The device features a maximum collector-emitter voltage (VCEO) of 45 V and a continuous collector current of 100 mA. Key electrical parameters include a DC current gain (hFE) range of 200 to 630, a collector-base voltage (VCBO) of 50 V, and an emitter-base voltage (VEBO) of 5 V. It operates within a temperature range of -65°C to +150°C and is qualified for AEC-Q100 automotive standards.

Feature Summary

• Dual PNP configuration with integrated base resistors for simplified switching applications
• Automotive qualification compliant with AEC-Q100 reliability standards
• High DC current gain ensuring efficient signal amplification and switching

Applications

• General-purpose switching circuits in automotive electronics
• Logic level translation and interface buffering
• Driver stages for low-power loads in consumer devices

Procurement Notes

Verify the specific suffix 'H6433' against official Infineon documentation to confirm tape-and-reel packaging quantities and material compliance. Ensure the ordering part number matches the exact datasheet revision required for your design. Cross-reference with authorized distributors to confirm current availability status, as supply chain conditions may vary by region.

Selection Notes

Select this component when a compact dual PNP solution with pre-biased resistors is required. The SOT-363 package offers space efficiency compared to discrete resistor-transistor networks. Consider the 45 V voltage rating and 100 mA current limit to ensure operation within safe operating areas. Verify thermal management requirements given the 250 mW power dissipation capability in the specified package.

Part Context

This part belongs to Infineon's AF (Advanced Fast) digital transistor series, designed for high-speed switching applications. The BC857S family provides matched pairs of PNP transistors with integrated biasing resistors. The H6433 suffix typically denotes specific packaging and reel configurations used by Infineon for mass production and distribution channels.

Replacement Considerations

Check for direct pin-compatible alternatives such as the BC857SH6327XTSA1 or other dual PNP digital transistors from manufacturers like ON Semiconductor or STMicroelectronics. Ensure replacement parts match the VCEO, IC, and hFE specifications. Verify that any substitute also meets AEC-Q100 requirements if used in automotive contexts.