BF820-QR

Single Bipolar Transistors Overview

The BF820-QR is an NPN silicon small-signal bipolar junction transistor manufactured by Nexperia. It is housed in a surface-mount SOT-23 (TO-236AB) package with three pins. The device supports a maximum collector-emitter voltage of 300 V and a collector-base voltage of 300 V, with a maximum emitter-base voltage of 5 V. It handles a continuous DC collector current of 50 mA and dissipates up to 250 mW of power. The component operates within a temperature range of -65°C to +150°C and meets AEC-Q101 automotive qualification standards.

Single Bipolar Transistors Feature Summary

• Automotive-grade reliability certified under the AEC-Q101 standard for robust performance in vehicle electronics.
• High-voltage capability suitable for switching applications requiring significant collector-emitter breakdown resistance.
• Compact surface-mount packaging designed for automated assembly in space-constrained circuit boards.

Single Bipolar Transistors Applications

• Automotive electronic control units and sensor interfaces
• General-purpose switching circuits in industrial equipment
• Signal amplification stages in consumer electronics

Single Bipolar Transistors Procurement Notes

Verify that the specific ordering code includes the QR suffix to confirm AEC-Q101 automotive qualification status. Confirm the package variant matches the required footprint, as standard commercial versions lack this certification. Check for recent Product Change Notifications regarding material or assembly updates. Ensure the supplier provides traceability documentation required for automotive supply chains. Validate RoHS compliance against current regulatory requirements before finalizing procurement.

Single Bipolar Transistors Selection Notes

Select this component when high voltage isolation is required in a compact form factor for automotive environments. Compare the 300 V rating against system voltage spikes to ensure adequate safety margins. Evaluate the thermal dissipation capabilities relative to the PCB copper area and ambient conditions. Consider the AEC-Q101 certification if the application mandates automotive reliability standards over general commercial use.

Single Bipolar Transistors Part Context

This part belongs to the BF820 series of NPN transistors produced by Nexperia. The series offers variants with different packaging options and qualification levels. The BF820-QR specifically denotes the version engineered for automotive applications, distinguishing it from standard commercial counterparts through rigorous testing protocols defined by the AEC-Q101 standard.

Single Bipolar Transistors Replacement Considerations

Direct substitutes include other AEC-Q101 qualified NPN transistors with matching 300 V ratings and SOT-23 packages. Verify pinout compatibility and electrical parameters such as hFE and saturation voltage before substitution. Cross-reference with Nexperia's official replacement guide for confirmed equivalent parts.