PDTA124XT-QR

Overview

The Nexperia PDTA124XT-QR is an NPN digital transistor featuring built-in bias resistors, designed for surface-mount applications in the SOT-363 (SC-88) package. It operates with a maximum collector-emitter voltage of 50 V and a continuous collector current of 100 mA. The device includes an internal base resistor of 22 kΩ and an emitter resistor of 47 kΩ, providing a standard resistance ratio. Qualified under AEC-Q101 standards, it supports a junction temperature range from -55 °C to +150 °C and dissipates up to 250 mW of power.

Feature Summary

• Integrated dual-resistor network simplifies circuit design by reducing component count and board space.
• Automotive-grade qualification ensures reliability for demanding operational environments.
• Compact leadless surface-mount package facilitates high-density PCB layouts.

Applications

• General-purpose switching in automotive electronic control units
• Level shifting and buffer circuits in communication interfaces
• Load switching for low-power peripheral devices

Procurement Notes

Verify the specific suffix 'XT' against official Nexperia documentation to confirm tape-and-reel packaging specifications and quantity per reel. Ensure the selected distributor provides traceable lot codes compliant with AEC-Q101 requirements. Cross-reference the part number with the latest datasheet revision to confirm pinout consistency and thermal characteristics before finalizing procurement orders.

Selection Notes

Select this component when a compact NPN switch with integrated biasing is required for space-constrained designs. The 22 kΩ base resistor suits direct logic interface applications without external components. Compare power dissipation limits and thermal resistance values against similar SOT-363 alternatives to ensure adequate heat management for the target application's duty cycle.

Part Context

This part belongs to Nexperia's extensive portfolio of pre-biased transistors, which integrate single or dual resistors with bipolar junction transistors. The PDTA series specifically denotes NPN configurations with built-in bias networks. These devices are engineered to replace discrete resistor-transistor combinations, offering improved performance consistency and reduced assembly complexity in modern electronic systems.

Replacement Considerations

Direct substitutes include PDTC124ET-QR and PDTC124TT, provided the package footprint matches the design constraints. Verify that alternative packages maintain identical electrical parameters and pin assignments to ensure compatibility without redesigning the printed circuit board layout.

FAQ

What is the typical resistance ratio for the PDTA124XT-QR?

The device features a base resistor of 22 kΩ and an emitter resistor of 47 kΩ, resulting in a standard resistance ratio defined by the manufacturer.

Is the PDTA124XT-QR suitable for automotive applications?

Yes, the component is qualified according to the AEC-Q101 standard, indicating its suitability for automotive electronic environments.

What is the maximum operating junction temperature?

The maximum operating junction temperature for this device is specified as +150 °C in the technical data.