PDTD143EUX

Overview

The PDTD143EUX is an NPN Resistor-Equipped Transistor (RET) from the Nexperia PDTD1xxxU series, housed in a SOT323 (SC-70) surface-mount package. It features built-in bias resistors with R1 at 4.7 kΩ and R2 at 4.7 kΩ. The device supports a collector-emitter voltage of 50 V and an output current of 500 mA. Key electrical characteristics include a DC current gain (hFE) of 60 at 50 mA and 5 V, a saturation voltage of 100 mV at 50 mA, and a transition frequency of 225 MHz. It is qualified to AEC-Q101 standards for automotive applications.

Feature Summary

• Built-in bias resistors simplify circuit design and reduce component count
• AEC-Q101 qualified for high temperature applications up to 175 °C
• ±10% resistor ratio tolerance ensures consistent performance

Applications

• IC inputs control
• Switching loads
• Cost-saving alternative to BC807 or BC817 series transistors in digital applications

Procurement Notes

Verify the specific ordering suffix against the manufacturer's official documentation to confirm the exact resistor values and package variant. Ensure compliance with RoHS3 regulations and check the latest product status on the manufacturer's website before finalizing procurement plans.

Selection Notes

Select this component when a compact NPN switching solution with integrated biasing is required. The SOT323 package is suitable for space-constrained designs. Verify that the 4.7 kΩ input resistor value aligns with the driving circuit requirements and that the 500 mA current rating meets the load specifications.

Part Context

This part belongs to the PDTD1xxxU series of NPN resistor-equipped transistors. It serves as the NPN counterpart to the PDTB1xxxU series of PNP devices. The 'EU' designation specifically identifies the 4.7 kΩ / 4.7 kΩ resistor configuration within the SC-70 package family.

Replacement Considerations

Direct functional substitutes within the same series include PDTD143XU, which shares identical electrical parameters but may differ in marking codes or manufacturing site origin. Verify pin compatibility and thermal characteristics when substituting.