PDTC143EQB-QZ

Overview

The PDTC143EQB-Q is an NPN Resistor-Equipped Transistor (RET) from Nexperia, housed in a DFN1110D-3 (SOT8015) leadless package. It features built-in bias resistors R1 and R2, both valued at 4.7 kΩ. The device supports a collector-emitter voltage (VCEO) of 50 V and a continuous output current (IO) of 100 mA. Total power dissipation reaches 340 mW at 25 °C on a standard FR4 PCB with 35 µm copper. The junction temperature range spans -55 °C to +150 °C, with storage temperatures from -65 °C to +150 °C. Thermal resistance from junction to ambient is typically 368 K/W in free air.

Feature Summary

• Integrated bias resistors simplify circuit design and reduce component count.
• Ultra-small leadless DFN1110D-3 package with side-wettable flanks for improved solder joint inspection.
• Qualified according to AEC-Q101 standards for automotive applications.

Applications

• Digital switching applications
• Controlling IC inputs
• Switching loads

Procurement Notes

Verify the specific ordering suffix matches the required tape-and-reel configuration. Confirm that the DFN1110D-3 footprint aligns with the manufacturing stencil guidelines provided in the datasheet. Ensure compliance with RoHS directives and check for any recent product change notices affecting assembly sites or materials before finalizing procurement orders.

Selection Notes

Select this component when space constraints require a leadless package with side-wettable flanks for better optical inspection. The 4.7 kΩ resistor ratio suits general-purpose digital logic interfacing. Compare thermal performance against SOT23 alternatives if high power density is critical, noting the lower thermal resistance on thicker copper PCBs.

Part Context

This part belongs to the PDTC143/114/124/144EQB-Q series, which shares the same DFN1110D-3 package and electrical characteristics but varies in internal resistor values. The PNP complement is PDTA143EQB-Q. The 'EQB' suffix denotes the specific automotive-grade qualification and leadless package variant within the broader RET family.

Replacement Considerations

PDTC143EQAZ serves as a pin-compatible alternative in the DFN1010D-3 package, though dimensions differ slightly. For SOT23 replacements, consider PDTC143TT-Q. Verify thermal dissipation capabilities and resistor tolerances when substituting across different package types.