BC847QASZ

Overview

The BC847QASZ is a dual NPN transistor in an ultra-small DFN1010B-6 (SOT1216) leadless surface-mounted device plastic package. It features a maximum collector-emitter voltage of 45V and a continuous collector current of 100mA. The device offers low collector capacitance and improved thermal behavior due to its flat leads. Key electrical parameters include a DC current gain range of 200 to 450, a collector-base voltage of 50V, and an emitter-base voltage of 6V. The total power dissipation is rated at 300mW, with a transition frequency of 100MHz. The package height is 0.37mm, and it operates within a temperature range of -55°C to +150°C.

Feature Summary

• Ultra-small footprint reduces required board space compared to traditional packages
• Current gain matching and base-emitter voltage matching for precision applications
• Low collector capacitance supports high-speed switching operations
• Improved thermal performance facilitated by flat lead design

Applications

• Current mirror circuits requiring matched transistor characteristics
• Differential amplifier stages in signal processing
• General-purpose switching and amplification tasks

Procurement Notes

Verify the specific suffix Z against official Nexperia documentation to confirm tape and reel packaging specifications. Ensure the DFN1010B-6 package dimensions align with your PCB land pattern requirements. Confirm AEC-Q101 qualification status if automotive reliability standards are mandatory for your design implementation.

Selection Notes

Select this component when space constraints necessitate a leadless package smaller than SOT23. The matched NPN configuration makes it suitable for differential pairs where parameter consistency is critical. Consider the 300mW power dissipation limit relative to your thermal management strategy on the printed circuit board.

Part Context

This part belongs to the BC847 family of general-purpose NPN transistors manufactured by Nexperia. While standard BC847 variants often use SOT23 packages, the QAS variant utilizes the compact DFN1010B-6 form factor. It serves as a modern alternative for designs prioritizing miniaturization and thermal efficiency over legacy through-hole or larger surface-mount options.

Replacement Considerations

Direct pin-compatible replacements may include BCM847QAS. Verify that substitute components maintain the same DFN1010B-6 package outline and electrical matching characteristics to ensure circuit functionality remains unchanged.