DSS4160FDBQ-7

Overview

The DSS4160FDBQ-7 is a dual NPN low saturation transistor manufactured by Diodes Incorporated in the U-DFN2020-6 (Type B) package. It features a collector-emitter breakdown voltage (BVCEO) of 60V and supports a continuous collector current (IC) of 1A. The device exhibits a maximum collector-emitter saturation voltage (VCE(sat)) of 220mV at 1A and an equivalent on-resistance (RCE(sat)) of 240mΩ at 500mA. Power dissipation reaches up to 2.47W with an exposed pad on a large copper area, while thermal resistance (RθJA) drops to 51°C/W under these conditions. Transition frequency (fT) is rated at 175MHz.

Feature Summary

• Dual NPN configuration housed in a low-profile 0.6mm high U-DFN2020-6 package for thin applications.
• Low saturation voltage and low equivalent on-resistance designed for efficient power switching.
• High thermal efficiency with junction-to-ambient resistance significantly lower than SOT26 packages.
• Qualified for automotive applications requiring specific change control, meeting AEC-Q101 standards.

Applications

• Load switches
• Power management circuits
• Charging circuits
• Power switches for motors and fans

Procurement Notes

Verify component authenticity through authorized distribution channels or direct manufacturer engagement. Confirm that the ordering suffix matches the required reel size and quantity specifications. Ensure compliance with RoHS and halogen-free requirements as defined by the manufacturer's quality definitions. Validate that the intended application environment aligns with the specified operating temperature range and moisture sensitivity levels.

Selection Notes

Select this component when a dual NPN configuration with high current handling and low saturation voltage is required in a compact footprint. Consider the U-DFN2020-6 package for space-constrained designs needing improved thermal performance compared to traditional surface mount packages. Evaluate the 60V rating against system voltage requirements and ensure adequate PCB copper area is available to maximize power dissipation capabilities.

Part Context

This part belongs to the DSS4160 series of dual NPN transistors from Diodes Incorporated. It shares similar electrical characteristics with other variants like the DSS4160TQ-7 but utilizes a different package type optimized for higher power dissipation and lower thermal resistance. The series is designed for general-purpose switching applications requiring robust performance in automotive and industrial environments.

Replacement Considerations

Direct substitutes include the DSS4160FDB-7, which shares identical electrical specifications and packaging. Verify pinout compatibility and thermal characteristics when replacing components. Ensure any alternative parts meet the same AEC-Q101 qualification and automotive change control requirements if used in regulated applications.

FAQ

What is the maximum power dissipation capability of the DSS4160FDBQ?

The maximum power dissipation is 2.47W when mounted with the collector pad on a 28mm x 28mm (8cm²) 2oz copper area, assuming both dies are active.

Is the DSS4160FDBQ suitable for automotive applications?

Yes, the device is AEC-Q101 qualified, PPAP capable, and manufactured in IATF16949 certified facilities, making it suitable for automotive applications requiring specific change control.

How does the thermal resistance compare to other packages?

The junction-to-ambient thermal resistance is approximately 40% lower than that of the SOT26 package, providing more efficient heat dissipation for power-demanding applications.