PDTA123YS,126

Overview

The PDTA123YS,126 is a PNP Resistor-Equipped Transistor (RET) housed in the SOT54 (TO-92) plastic single-ended leaded package. It integrates an NPN transistor with built-in bias resistors: R1 (input) is nominally 2.2 kΩ and R2 is nominally 10 kΩ. The device supports a maximum collector-emitter voltage of -50 V and a DC output current of -100 mA. Total power dissipation reaches 500 mW at 25 °C ambient temperature. Key electrical characteristics include a minimum DC current gain of 35 at -5 mA collector current and a maximum collector-emitter saturation voltage of -150 mV under specified test conditions.

Feature Summary

• Integrates bias resistors to reduce component count and simplify circuit design
• Reduces pick and place costs for automated assembly processes
• Suitable for general purpose switching and amplification tasks

Applications

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

Procurement Notes

Verify the specific ordering suffix against the manufacturer's official documentation to confirm the exact packing method. The '126' suffix corresponds to tape and reel packaging with wide pitch leads for the SOT54 variant. Confirm that the requested quantity aligns with the standard packing quantities defined in the product data sheet to ensure availability.

Selection Notes

Select this component when a compact PNP solution with integrated base biasing is required for through-hole applications. The SOT54 package provides a robust mechanical form factor suitable for manual or semi-automated insertion. Ensure the application voltage does not exceed the -50 V collector-emitter rating and that the thermal resistance allows for adequate heat dissipation within the operating temperature range.

Part Context

This part belongs to the PDTA123Y series of PNP resistor-equipped transistors manufactured by Nexperia, formerly NXP Semiconductors. The series offers multiple package options including surface-mount variants like SOT23 and SOT323, as well as other through-hole packages. The PDTA123YS specifically utilizes the SOT54 footprint, providing a direct complement to the PDTC123YS NPN counterpart.

Replacement Considerations

The PDTC123YS serves as the NPN complement within the same series. For equivalent performance in different packages, consider PDTA123YT (SOT23) or PDTA123YK (SOT346). Verify pinout compatibility and thermal characteristics when substituting between package types.