PDTC123YU-QX

Overview

The PDTC123YU-QX is an NPN Resistor-Equipped Transistor (RET) manufactured by Nexperia USA Inc. It integrates a single NPN transistor with a built-in base resistor within a compact SOT-323 (SC-70) surface-mount package. The device features a maximum collector-emitter voltage (VCEO) of 50 V and a continuous collector current rating of 100 mA. Key electrical parameters include a maximum power dissipation of 200 mW, a minimum DC current gain (hFE) of 30 at specified test conditions, and a typical input resistance (R1) of 2.2 kΩ. The component operates across a temperature range from -65 °C to +150 °C and complies with AEC-Q101 automotive qualification standards.

Feature Summary

• Integrates an NPN transistor with a built-in base resistor to reduce external component count and simplify circuit layout.
• Designed for high breakdown voltage applications with a 50 V collector-emitter rating.
• Automotive-grade construction qualified under AEC-Q101 standards for reliability in vehicle electronics.

Applications

• Digital logic interface circuits requiring level shifting or buffering.
• Switching loads in automotive electronic control units.
• Controlling inputs for integrated circuits in space-constrained designs.

Procurement Notes

Verify the specific suffix 'QX' against official Nexperia documentation to confirm packaging details and automotive compliance status. Ensure the ordering part number matches the required tape-and-reel specifications for automated assembly processes. Cross-reference the datasheet revision date to confirm parameter consistency before finalizing procurement orders.

Selection Notes

Select this component when a small-form-factor NPN switch with integrated biasing is required. The 2.2 kΩ internal resistor simplifies drive circuit design compared to discrete transistors. Verify that the 100 mA current limit and 50 V voltage rating align with the target application's load requirements and operating conditions.

Part Context

This part belongs to the Nexperia PDTA/B/C series of Resistor-Equipped Transistors. These devices are designed to replace multiple discrete components, offering a cost-effective solution for digital switching applications. The SOT-323 package provides a compact footprint suitable for high-density PCB layouts common in modern consumer and automotive electronics.

Replacement Considerations

Check for direct equivalents such as the PDTC123TU or PDTC123EU if pinout compatibility is critical. Verify that substitute parts maintain the same 2.2 kΩ base resistance value and 50 V voltage rating to ensure functional parity in existing designs.