DTA123TCAT116

Overview

The DTA123TCAT116 is a single PNP digital transistor manufactured by ROHM Semiconductor, housed in an SOT-23-3 surface-mount package. It integrates bias resistors to simplify circuit design. Key electrical parameters include a collector-emitter voltage (VCEO) of -50 V and a continuous collector current of -100 mA. The device features a typical input resistance of 2.2 kOhms and a minimum DC current gain (hFE) of 100 at -1 mA and -5 V. It supports a maximum operating frequency of 250 MHz with a power dissipation rating of 350 mW. The component operates within a temperature range up to +150 C and includes an emitter-base voltage (VEBO) limit of -5 V.

Feature Summary

• Integrates built-in bias resistors to eliminate the need for external input components in inverter circuits.
• Designed for high-speed switching applications with a transition frequency of 250 MHz.
• Utilizes a compact SOT-23-3 surface-mount package suitable for automated assembly.

Applications

• General-purpose inverter circuits requiring simplified input stages.
• Driver circuits for small-signal switching operations.
• Logic interface applications between microcontrollers and peripheral devices.

Procurement Notes

Verify the complete part number including the suffix AT116 to ensure correct packaging configuration. Confirm RoHS compliance status through official manufacturer documentation prior to integration. Cross-reference datasheet revisions to validate electrical characteristics against specific design requirements. Ensure sourcing channels provide authentic components to mitigate counterfeit risks.

Selection Notes

Select this component when a PNP digital transistor with a 2.2 kOhm base resistor is required. Compare the 350 mW power dissipation capability against thermal constraints in the target application. Consider the SOT-23-3 footprint compatibility during PCB layout planning. Evaluate the -50 V voltage rating against system supply voltages to prevent breakdown.

Part Context

This part belongs to the DTA series of Bias Resistor Built-in Transistors (BRBTs) from ROHM Semiconductor. These devices combine a single bipolar junction transistor with internal resistive networks. The DTA123 variant specifically denotes a PNP configuration with defined resistor ratios. The AT116 suffix indicates specific taping and reel specifications for surface-mount processing.

Replacement Considerations

DTA123TCA serves as a functional alias for the core device specification. Verify pinout compatibility and electrical tolerances before substituting with other PNP digital transistors from different manufacturers. Ensure replacement parts meet the same SOT-23-3 package dimensions and thermal performance standards.