PDTB123EUX

Overview

The PDTB123EUX is a PNP Resistor-Equipped Transistor (RET) manufactured by Nexperia, housed in a compact SOT323 (SC-70) surface-mounted plastic package. It integrates bias resistors to simplify circuit design and reduce component count. Key electrical parameters include a collector-emitter voltage (VCEO) of -50 V and an output current capability of -500 mA. The built-in input resistor (R1) has a typical value of 2.2 kΩ with a tolerance of ±10%, while the base-emitter resistor (R2) typically measures 2.2 kΩ. The device supports high-temperature applications up to 175 °C and is qualified under the AEC-Q101 standard for automotive reliability.

Feature Summary

• Integrates built-in bias resistors to simplify circuit design and reduce overall component count.
• AEC-Q101 qualified for use in demanding automotive electronic environments.
• Supports high-temperature operation with a maximum junction temperature of 175 °C.
• Provides a cost-saving alternative to discrete BC807 or BC817 series transistors.

Applications

• IC inputs control
• Switching loads
• General purpose switching and amplification

Procurement Notes

Verify the specific suffix 'EU' corresponds to the SOT323 package and the required resistor values during procurement. Confirm that the ordering code matches the exact R1 and R2 specifications needed for the design. Ensure compliance with the AEC-Q101 qualification if the application requires automotive-grade components. Check the latest datasheet revision for any updates to limiting values or thermal characteristics before finalizing the bill of materials.

Selection Notes

Select the PDTB123EUX when a PNP transistor with integrated biasing is required in a small form factor. This part is suitable for designs needing a 2.2 kΩ input resistor and a 2.2 kΩ base-emitter resistor. Consider this component for space-constrained PCB layouts where reducing external passive components is a priority. Ensure the operating voltage does not exceed the -50 V collector-emitter rating and the current remains within the -500 mA limit.

Part Context

This component belongs to the PDTB1xxxU series of PNP resistor-equipped transistors from Nexperia. The series includes variants with different resistor ratios, such as PDTB113EU and PDTB143EU, to accommodate various biasing requirements. All members of this family share the same SOT323 package and general electrical characteristics, differing primarily in their internal resistor values and corresponding NPN complements like the PDTD123EU.

Replacement Considerations

Direct substitutes within the same series include PDTB123YU, which shares the SOT323 package but features a different base-emitter resistor ratio. For pin-compatible replacements with different resistor values, consider PDTB113EU or PDTB143EU. Discrete PNP transistors like the BC807 may serve as functional alternatives but require additional external components for biasing.