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The BC846A-QR is an NPN silicon small-signal bipolar junction transistor (BJT) manufactured by Nexperia. It is designed for general-purpose switching and amplification applications in surface-mount devices. The component features a maximum collector-emitter voltage of 65 V and a continuous collector current of 100 mA. It operates within a temperature range of -65 °C to +150 °C. The device meets AEC-Q101 automotive qualification standards, ensuring reliability in demanding environments. It utilizes the SOT-23-3 package configuration.
Verify the specific suffix QR indicates the correct reel packaging format required for automated assembly processes. Confirm that the AEC-Q101 qualification status aligns with your specific automotive application requirements. Ensure compatibility with standard SOT-23-3 footprint designs during the procurement phase to avoid integration issues.
Select this component when automotive qualification is mandatory for NPN switching applications. Consider the 65 V breakdown voltage and 100 mA current limits against circuit demands. Evaluate the SOT-23-3 package constraints for space-limited PCB layouts. Compare gain characteristics if precise hFE ranges are critical for amplifier linearity.
This part belongs to the BC846 series of NPN transistors from Nexperia. The series includes variants like BC846A and BC846B, distinguished primarily by their DC current gain (hFE) bins. The QR suffix typically denotes tape-and-reel packaging for high-volume manufacturing. These transistors are widely used in consumer electronics and industrial control systems.
Direct substitutes include other AEC-Q101 qualified NPN transistors in SOT-23 packages with similar voltage and current ratings. Verify pinout compatibility and thermal dissipation characteristics before substitution. Generic equivalents may lack the specific automotive reliability certification required for this application.