DTA124TUAT106

Overview

The DTA124TUAT106 is a PNP digital transistor manufactured by ROHM Semiconductor, featuring built-in bias resistors in a compact SOT-323-3 surface-mount package. It provides a collector-emitter voltage (Vceo) of -50 V and a continuous collector current of -100 mA. The device includes an input resistor (R1) of 22 kΩ and achieves a DC current gain (hFE) of at least 100 at -1 mA and -5 V. With a maximum operating frequency of 250 MHz and power dissipation of 200 mW, it supports efficient switching applications.

Feature Summary

• Integrates a PNP bipolar junction transistor with dual bias resistors to simplify circuit design and reduce component count.
• Optimized for high-speed switching operations with a transition frequency reaching 250 MHz.
• Designed for low-power consumption within a small footprint suitable for portable electronic devices.

Applications

• General-purpose switching circuits in consumer electronics
• Driver stages for logic interfaces requiring level shifting or buffering
• Power management systems utilizing low-voltage control signals

Procurement Notes

Verify the specific ordering suffix AT106 to confirm the tape-and-reel packaging quantity and manufacturer lot traceability. Ensure compatibility with standard SMT reflow profiles and check for RoHS compliance documentation corresponding to the production batch date code before finalizing procurement orders.

Selection Notes

Select this component when a PNP configuration with integrated base and emitter resistors is required for space-constrained designs. Compare the 22 kΩ input resistance against alternative models if specific biasing currents differ from standard logic gate outputs. Confirm that the -50 V rating exceeds the maximum expected load voltage in the target application environment.

Part Context

This part belongs to the DTx series of Bias Resistor Built-in Transistors (BRBTs). It shares the functional topology with other DTA124 variants but differs in packaging and reel specifications. The TUAT106 designation specifically identifies the SOT-323 form factor and associated manufacturing batch parameters defined by ROHM Semiconductor.

Replacement Considerations

DTA124XUA offers similar electrical characteristics but utilizes a UMT3 package. Verify pinout compatibility and thermal performance differences between SOT-323 and UMT3 packages before substitution. Check datasheet revisions for any changes in hFE minimums or saturation voltages across equivalent part numbers.