PDTA144EU/ZLF

Overview

The PDTA144EU/ZLF is a PNP Resistor-Equipped Transistor (RET) from the PDTA144E series, manufactured by Nexperia USA Inc. It integrates a PNP transistor with built-in bias resistors R1 and R2, both nominally 47 kΩ, into a single SOT323 (SC-70) surface-mounted device package. The component supports an output current of up to -100 mA and withstands a collector-emitter voltage of -50 V. Key electrical characteristics include a DC current gain (hFE) minimum of 80 at -5 mA and -5 V, a transition frequency of 180 MHz, and a total power dissipation of 200 mW at 25 °C ambient temperature. The device is AEC-Q101 qualified for automotive applications.

Feature Summary

• Integrates PNP transistor with built-in bias resistors to simplify circuit design
• Reduces component count and pick-and-place costs on printed-circuit boards
• Qualified under AEC-Q101 standards for automotive reliability
• Serves as a cost-saving alternative to discrete BC847/857 series components

Applications

• Digital applications in automotive and industrial segments
• Control of IC inputs
• Switching loads

Procurement Notes

Verify the specific ordering suffix and manufacturing lot code against the latest Nexperia datasheet revision. Confirm that the SOT323 package variant matches the required footprint dimensions. Ensure compliance with RoHS directives and check for any end-of-life notifications or longevity program updates directly from the manufacturer before finalizing procurement plans.

Selection Notes

Select this component when space constraints favor the SOT323 package over larger alternatives like SOT23. Choose PDTA144EU specifically if the application requires the standard 47 kΩ / 47 kΩ resistor ratio. Verify that the -50 V collector-emitter voltage rating meets the circuit's maximum operating conditions. Consider thermal derating curves if the ambient temperature exceeds 25 °C to ensure power dissipation limits are not exceeded.

Part Context

The PDTA144EU belongs to the broader PDTA144E family, which includes variants in different packages such as SOT416, SOT883, and SOT23. All members share identical internal circuitry and electrical specifications but differ in physical dimensions and thermal characteristics. The EU suffix specifically denotes the SOT323 plastic surface-mounted package configuration.

Replacement Considerations

PDTC144EU is the NPN complement within the same series. For direct pin-compatible replacements, verify equivalent RET devices from other manufacturers ensuring matching R1/R2 values and SOT323 package compatibility.