BC55-16PAS-QX

Single Bipolar Transistors Overview

The BC55-16PAS-QX is an NPN medium power transistor from the Nexperia BC55xPAS-Q series, housed in a DFN2020D-3 (SOT1061D) leadless package. It features a collector-emitter voltage (VCEO) of 60 V and a continuous collector current (IC) of 1 A. The device supports a peak collector current (ICM) of 2 A with a pulse width up to 1 ms. DC current gain (hFE) ranges from 100 to 250 at IC = 150 mA and VCE = 2 V. Total power dissipation reaches 1.65 W at Tamb ≤ 25 °C on a standard FR4 PCB. Junction temperature maximum is 150 °C.

Single Bipolar Transistors Feature Summary

• High collector current capability for both continuous and pulsed operation
• Exposed heat sink providing excellent thermal and electrical conductivity
• Leadless ultra-thin SMD plastic package with visible solderable side pads
• Qualified according to AEC-Q101 standards for automotive applications

Single Bipolar Transistors Applications

• Linear voltage regulators
• Battery driven devices
• MOSFET drivers
• High-side switches
• Power management circuits

Single Bipolar Transistors Procurement Notes

Verify the specific suffix 'QX' against the official datasheet to confirm packaging details and reel specifications. Ensure the design accounts for the DFN2020D-3 footprint dimensions and thermal pad requirements. Confirm that the application environment stays within the specified -55 °C to +150 °C operating temperature range. Check for any recent Product Change Notifications regarding material or process updates.

Single Bipolar Transistors Selection Notes

Select this component when a compact, high-current NPN transistor is required for space-constrained designs. The DFN2020D-3 package offers reduced PCB area compared to traditional leads while maintaining medium power capabilities. The exposed heatsink facilitates efficient thermal management. Choose the BC55-16 variant specifically for its guaranteed hFE range of 100 to 250 under standard test conditions.

Single Bipolar Transistors Part Context

This part belongs to the BC55xPAS-Q series, which includes variants like BC55PAS-Q and BC55-10PAS-Q. All share the same DFN2020D-3 package and core electrical ratings but differ in current gain bins. The series is designed as a drop-in replacement for legacy TO-92 packages in modern surface-mount assemblies, offering improved thermal performance and automated optical inspection compatibility.

Single Bipolar Transistors Replacement Considerations

Direct pin-compatible replacements within the same series include BC55PAS-Q and BC55-10PAS-Q, provided their respective hFE ranges meet circuit requirements. Verify that alternative components match the 60 V VCEO and 1 A IC limits. Ensure any substitute also utilizes the DFN2020D-3 package for proper thermal and mechanical integration.

Single Bipolar Transistors FAQ

What is the marking code for the BC55-16PAS-Q?

The marking code for the BC55-16PAS-Q is CJ.

How does the package facilitate thermal management?

The DFN2020D-3 package features an exposed heat sink on the bottom, which provides excellent thermal and electrical conductivity to the printed-circuit board.

Is this component suitable for automotive use?

Yes, the product is qualified according to the AEC-Q101 standard and is recommended for use in automotive applications.