PDTA114TU,115

Overview

The PDTA114TU,115 is a PNP Resistor-Equipped Transistor (RET) from the PDTA114T series, housed in an SOT-323 (SC-70) surface-mount package. It integrates a single NPN complement-free PNP transistor with a built-in input bias resistor R1 of 10 kΩ and an open emitter resistor R2. Key electrical parameters include a collector-emitter voltage (VCEO) of -50 V, a continuous output current (IO) of -100 mA, and a peak collector current (ICM) of -100 mA. The device features a DC current gain (hFE) of at least 200 at IC = -1 mA and VCE = -5 V, with a maximum collector-emitter saturation voltage of -150 mV at IC = -10 mA. Total power dissipation is rated at 200 mW at 25 °C ambient temperature.

Feature Summary

• Integrates a 10 kΩ input bias resistor to simplify circuit design and reduce component count.
• Provides high breakdown voltage capability for robust digital switching applications.
• Offers 100 mA output current capability suitable for low-current peripheral driving.

Applications

• Digital logic interface circuits
• Control of IC inputs
• Low current peripheral driver

Procurement Notes

Verify the specific ordering suffix against the manufacturer's official documentation to confirm packaging details and manufacturing origin. Ensure compatibility with standard reflow soldering processes as specified in the thermal characteristics section. Confirm that the SOT-323 footprint matches the target PCB design guidelines provided in the package outline drawings.

Selection Notes

Select this component when a compact PNP switching solution with integrated base biasing is required. The SOT-323 package offers space efficiency compared to through-hole alternatives like the SOT54 variant. Consider the 10 kΩ internal resistance value for base drive calculations; external resistors are unnecessary for basic on/off control, reducing assembly complexity.

Part Context

This part belongs to the PDTA114T series of PNP Resistor-Equipped Transistors. The series includes variants in different packages such as SOT23, SOT346, and SOT883. The TU suffix specifically denotes the SOT-323 (SC-70) plastic surface-mounted package with three leads. It serves as a cost-saving alternative to discrete resistor-transistor networks in digital applications.

Replacement Considerations

The PDTC114TU is the documented NPN complement within the same family. For direct functional substitution in PNP configurations, verify pinout compatibility and ensure the replacement meets the -50 V and -100 mA requirements. Other series members like PDTA114TT (SOT23) share electrical characteristics but differ in physical footprint.