PDTD143ETVL

Overview

The PDTD143ET is an NPN Resistor-Equipped Transistor (RET) housed in a small SOT23 surface-mounted device plastic package. It integrates bias resistors R1 and R2, both nominally 4.7 kΩ, with a ratio tolerance of ±10%. The device supports a collector-emitter voltage of 50 V and an output current capability of 500 mA. Key electrical characteristics include a DC current gain of 60 at 50 mA, a transition frequency of 225 MHz, and a maximum junction temperature of 175 °C. Total power dissipation reaches 320 mW in free air and 460 mW on a four-layer FR4 PCB.

Feature Summary

• Built-in bias resistors simplify circuit design and reduce component count
• High temperature applications up to 175 °C
• ±10% resistor ratio tolerance for consistent performance

Applications

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

Procurement Notes

Verify the specific ordering suffix against the manufacturer's official documentation to confirm packaging details and availability status. Confirm that the non-automotive qualified product designation aligns with the target application requirements before finalizing procurement plans.

Selection Notes

Select this component when a compact NPN transistor with integrated base biasing is required for general-purpose switching or amplification. Ensure the operating environment remains within the specified thermal limits and that the 50 V collector-emitter voltage rating exceeds the maximum circuit stress conditions.

Part Context

This part belongs to the Nexperia PDTD1XXXT_SER family of NPN resistor-equipped transistors. The revision history indicates a transition from a family data sheet to a single type data sheet in October 2022, explicitly noting the product is not automotive qualified.

Replacement Considerations

The PDTB143ET is documented as the PNP complement. For direct replacement, verify pinout compatibility and ensure the substitute meets the 500 mA current and 50 V voltage ratings.