BC846W-QX

Overview

The BC846BW-QX is an NPN general-purpose bipolar junction transistor manufactured by Nexperia. It utilizes silicon technology and is housed in a compact SOT-323 (SC-70) surface-mount package with three terminals. The device supports a maximum collector-emitter voltage of 65 V, a collector-base voltage of 80 V, and an emitter-base voltage of 6 V. It handles a continuous collector current of 100 mA and a peak current of 200 mA. Key electrical characteristics include a DC current gain ranging from 200 to 450 at 2 mA and 5 V, a transition frequency of 100 MHz, and a power dissipation capability of 200 mW. It operates within a temperature range of -65 °C to +150 °C and holds AEC-Q101 automotive qualification.

Feature Summary

• Automotive qualified according to AEC-Q101 standards for reliable performance in vehicle electronics
• High DC current gain selection providing amplification capabilities for signal processing
• Compact SOT-323 plastic package designed for efficient space utilization in surface-mount applications

Applications

• General-purpose switching circuits
• Amplification stages in electronic devices
• Automotive embedded systems requiring qualified components

Procurement Notes

Verify the complete part number including suffixes such as QX against official Nexperia documentation to ensure correct packaging and automotive grade specifications. Confirm RoHS compliance status through the manufacturer's datasheet before procurement. Cross-reference the 12NC code to validate exact manufacturing batch requirements. Ensure storage conditions align with moisture sensitivity level guidelines specified in the product data sheet.

Selection Notes

Select this component when high gain and small form factor are required for NPN switching or amplification tasks. The AEC-Q101 qualification makes it suitable for automotive environments where reliability is critical. Compare power dissipation limits and thermal resistance against system constraints. Verify that the SOT-323 footprint matches the PCB layout design. Consider the specific gain bin required for the application circuit stability.

Part Context

This component belongs to the BC846 series of general-purpose NPN transistors offered by Nexperia. The series includes variants with different gain selections and packages, such as the BC846AW and BC846BW. The BC846W-QX specifically denotes the automotive-grade version packaged in SOT-323. It serves as a complement to PNP types like the BC856W in push-pull configurations.

Replacement Considerations

Direct substitutes include other BC846W variants with matching gain bins if available. Automotive equivalents must also hold AEC-Q101 certification. Verify pinout compatibility and thermal characteristics before substitution.