PDTB143EUF

Overview

The PDTB143EUF is a PNP Resistor-Equipped Transistor (RET) from the PDTB1xxxU series, housed in an SOT323 (SC-70) surface-mounted package. It features built-in bias resistors with typical values of R1 = 4.7 kΩ and R2 = 4.7 kΩ. The device supports a collector-emitter voltage (VCEO) of -50 V and a continuous output current (IO) of -500 mA. Key electrical characteristics include a DC current gain (hFE) of 60 at IC = -50 mA and VCE = -5 V, a transition frequency (fT) of 140 MHz, and a total power dissipation of 300 mW. It operates within a temperature range of -55 °C to +175 °C and holds AEC-Q101 qualification.

Feature Summary

• Integrates built-in bias resistors to simplify circuit design and reduce component count.
• AEC-Q101 qualified for automotive applications with high-temperature capability up to 175 °C.
• Provides a cost-saving alternative to discrete BC807 or BC817 series transistors.

Applications

• IC inputs control
• Switching loads
• Inverter and interface circuits

Procurement Notes

Verify the specific ordering suffix against the manufacturer's official documentation to confirm the exact tape-and-reel quantity and manufacturing site code. Ensure the selected variant matches the required resistor tolerance and package dimensions for your PCB footprint. Cross-reference the latest datasheet revision to confirm current product status and any potential changes to limiting values or thermal characteristics before finalizing procurement.

Selection Notes

Select this component when a PNP transistor with integrated base and emitter-base resistors is required for space-constrained designs. The 4.7 kΩ input resistance suits standard logic level driving. Verify that the -500 mA current rating meets load requirements and that the SOT323 package thermal performance is adequate for the expected power dissipation in the target application environment.

Part Context

This part belongs to the PDTB1xxxU family of PNP resistor-equipped transistors manufactured by Nexperia. The 'EU' suffix typically denotes the SOT323 package configuration within this series. It serves as a compact solution for digital switching applications where external biasing components would otherwise increase board space and assembly costs.

Replacement Considerations

Check for other variants within the PDTB1xxxU series with different resistor values if impedance matching requires adjustment. Verify pinout compatibility with existing footprints when substituting with similar RETs from other manufacturers.