PDTA143ZT,235

Overview

The PDTA143ZT,235 is a PNP Resistor-Equipped Transistor (RET) manufactured by Nexperia USA Inc. in an SOT23 surface-mounted package. It integrates bias resistors R1 and R2 with nominal values of 4.7 kΩ and 47 kΩ respectively, yielding a standard ratio of 10. The device supports a maximum collector-emitter voltage (VCEO) of -50 V and an output current (IO) of -100 mA. Key electrical characteristics include a DC current gain (hFE) of at least 100 at IC = -10 mA, a transition frequency (fT) of 180 MHz, and a total power dissipation of 250 mW at ambient temperatures up to 25 °C.

Feature Summary

• Integrates built-in bias resistors to simplify circuit design and reduce component count
• Reduces pick and place costs through consolidated single-component implementation
• Provides high-speed switching capability with a transition frequency of 180 MHz

Applications

• Digital applications in automotive and industrial segments
• Cost-saving alternative for BC847/857 series in digital logic circuits
• Controlling integrated circuit inputs
• Switching loads

Procurement Notes

Verify the specific ordering suffix

Selection Notes

Select this component when a compact PNP switching solution with integrated base biasing is required. Ensure the application operates within the -50 V collector-emitter voltage limit and does not exceed the 100 mA output current rating. Consider the thermal resistance of 500 K/W for heat dissipation calculations on FR4 PCBs.

Part Context

This part belongs to the PDTA143Z series of PNP resistor-equipped transistors. The NPN complement for this device is the PDTC143ZT. The PDTA143ZT,235 variant specifically denotes the SOT23 package configuration with the defined internal resistor network.

Replacement Considerations

Direct substitutes include other PDTA143Z variants from Nexperia or equivalent PNP RETs with matching 4.7 kΩ / 47 kΩ resistor ratios and SOT23 packaging. Verify pinout compatibility and absolute maximum ratings before substitution.