PDTA144TS,126

Overview

The PDTA144TS is a PNP resistor-equipped transistor from the PDTA144T series, manufactured by Nexperia (formerly NXP Standard Products). It features a built-in bias resistor R1 of 47 kΩ with R2 left open. The device is housed in a plastic single-ended leaded TO-92 package (SOT54) and supports a maximum collector-emitter voltage (VCEO) of -50 V and a DC output current (IO) of -100 mA. Total power dissipation reaches 500 mW at 25 °C ambient temperature. Key electrical characteristics include a minimum DC current gain (hFE) of 100 at IC = -1 mA and a maximum collector-emitter saturation voltage (VCEsat) of -150 mV at IC = -10 mA.

Feature Summary

• Integrates a 47 kΩ input bias resistor to simplify circuit design and reduce component count.
• Eliminates external biasing components, lowering pick-and-place costs during assembly.

Applications

• General purpose switching and amplification
• Inverter and interface circuits
• Circuit driver

Procurement Notes

Verify the ordering suffix '126' against official Nexperia documentation, as the provided datasheet lists standard suffixes like 'TS'. Confirm the manufacturer origin, noting that 't' indicates Malaysia production for this package type. Ensure compliance with RoHS directives and check for AEC-Q101 qualification status if automotive reliability is required for the specific batch.

Selection Notes

Select the PDTA144TS when a through-hole TO-92 package is required for PNP pre-biased applications. This model provides a fixed 47 kΩ base resistor, suitable for driving loads up to 100 mA with a 50 V rating. Consider alternative packages like SOT23 or SC-75 if surface-mount technology is preferred for space-constrained designs.

Part Context

This component belongs to the PDTA144T series of PNP resistor-equipped transistors. The series includes various package options such as SOT23, SOT323, and SOT416. The PDTA144TS specifically utilizes the SOT54 (TO-92) form factor, offering a robust leaded solution compared to the surface-mount variants within the same functional family.

Replacement Considerations

Direct substitutes include other PNP pre-biased transistors with similar 47 kΩ base resistors and TO-92 packaging. Verify pinout compatibility (Base, Collector, Emitter) and ensure voltage/current ratings meet or exceed the original specifications.