PDTB143ETR

Overview

The PDTB143ETR is a PNP Resistor-Equipped Transistor (RET) from the PDTB1xxxT series, housed in a TO-236AB (SOT23) surface-mounted package. It features built-in bias resistors R1 and R2 with typical values of 4.7 kΩ each. The device supports a collector-emitter voltage (VCEO) of -50 V and an output current (IO) of -500 mA. Key electrical characteristics include a DC current gain (hFE) minimum of 60 at IC = -50 mA and VCE = -5 V, a transition frequency (fT) of 140 MHz, and a total power dissipation of 320 mW at 25 °C. The component is AEC-Q101 qualified for automotive applications.

Feature Summary

• Integrates built-in bias resistors to simplify circuit design and reduce component count
• AEC-Q101 qualified for high reliability in automotive environments
• Supports high temperature operation up to 175 °C junction temperature
• Provides ±10% resistor ratio tolerance for consistent performance

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 latest documentation to ensure correct packaging configuration. Confirm that the requested part matches the PDTB143ET base type within the PDTB1xxxT series. Cross-reference the marking code *4X with the official datasheet to validate authenticity. Ensure compliance with RoHS3 standards if required by the application specifications.

Selection Notes

Select this component when a PNP transistor with integrated biasing is required for space-constrained designs. The SOT23 package allows for direct replacement of discrete transistor-resistor networks. Consider the 4.7 kΩ internal resistor values for appropriate base drive currents. Verify thermal management requirements given the 320 mW power dissipation limit in free air.

Part Context

The PDTB143ETR belongs to the PDTB1xxxT family of PNP resistor-equipped transistors manufactured by Nexperia. This series includes variants like PDTB114ET and PDTB143XT, distinguished primarily by their internal resistor configurations. All members share the same TO-236AB package and general electrical ratings, offering a standardized solution for digital switching and amplification tasks.

Replacement Considerations

Publicly confirmed substitutes include the PDTB143ET and PDTB143XT from the same Nexperia series. These parts share identical pinouts and mechanical dimensions. Verify functional equivalence regarding the specific resistor values and hFE ranges before substitution.