BC858W-QX

Overview

The BC858W-QX is a PNP general-purpose transistor from Nexperia, qualified to AEC-Q101 standards for automotive applications. It is housed in the SOT323 (SC-70) surface-mount package. Key electrical ratings include a maximum collector-emitter voltage of 45 V and a continuous collector current of 100 mA. The device features a power dissipation capability of 250 mW and operates within a temperature range of -65°C to +150°C. It offers three gain selections with a transition frequency of 100 MHz.

Feature Summary

• Automotive-grade qualification compliant with AEC-Q101 standards
• Compact SMD plastic packaging for space-constrained designs
• General-purpose switching and amplification capabilities

Applications

• General-purpose switching circuits
• Signal amplification stages
• Automotive electronic systems

Procurement Notes

Verify the specific suffix against official Nexperia documentation to confirm package type and tape-and-reel specifications. Ensure the selected variant matches the required gain bin and automotive reliability standards for your design. Cross-reference the ordering code with manufacturer databases to avoid discrepancies in component specifications or packaging formats.

Selection Notes

Select this component when an AEC-Q101 qualified PNP transistor is required in a small SOT323 footprint. It serves as the complement to the BC847W-Q series NPN transistors. Consider its 45 V rating and 100 mA current capacity for low-power automotive signal processing tasks where compact size and high reliability are critical design constraints.

Part Context

This part belongs to the BC847xW-Q series family of general-purpose transistors designed for automotive use. It shares the same SOT323 package and form factor as other members like the BC847BW-Q, ensuring mechanical compatibility within designs utilizing this specific surface-mount technology platform.

Replacement Considerations

Official substitutes include BC857W-Q, BC857AW-Q, BC857BW-Q, and BC857CW-Q.