PDTB143EUX

Overview

The PDTB143EUX is a PNP Resistor-Equipped Transistor (RET) from the PDTB1xxxU series, housed in an SOT323 (SC-70) surface-mount package. It features built-in bias resistors with R1 at 4.7 kΩ and R2 at 4.7 kΩ. The device supports a maximum collector-emitter voltage of -50 V and an output current of -500 mA. Key electrical characteristics include a DC current gain (hFE) of 60 at -5 V and -50 mA, a collector-emitter saturation voltage of -100 mV at -50 mA, and a transition frequency of 140 MHz. Total power dissipation reaches 300 mW in free air.

Feature Summary

• Built-in bias resistors simplify circuit design and reduce component count
• AEC-Q101 qualified for automotive applications
• Suitable for high temperature applications up to 175 °C

Applications

• IC inputs control
• Switching loads
• Cost-saving alternative to BC807 or BC817 series transistors in digital applications

Procurement Notes

Verify the specific ordering suffix against the manufacturer's official documentation to confirm the exact resistor values and package variant. Ensure compatibility with standard SOT323 footprints during PCB layout. Confirm AEC-Q101 qualification status if deploying in automotive environments. Cross-reference marking codes for manufacturing site identification.

Selection Notes

Select this component when a compact PNP transistor with integrated base biasing is required. The 4.7 kΩ input resistor value suits general-purpose switching and logic interface applications. Consider the SC-70 package size for space-constrained designs replacing discrete BJT and resistor combinations.

Part Context

This part belongs to the PDTB1xxxU series of PNP resistor-equipped transistors manufactured by Nexperia. The series offers various resistor configurations within the same SOT323 footprint, allowing designers to choose specific bias ratios without changing the physical package dimensions.

Replacement Considerations

PDTB143XU serves as a functional substitute within the same series, differing primarily in the internal R2 resistor value configuration while maintaining identical package and primary electrical ratings.