DTA143XUBTL

Overview

The DTA143XUBTL is a PNP digital transistor manufactured by ROHM Semiconductor, featuring built-in bias resistors within a compact SOT-323FL (UMT3F) surface-mount package. It operates with a collector-emitter voltage of -50V and a continuous collector current of -100mA. The device incorporates an input resistance of 4.7kΩ and an emitter-base resistance of 10kΩ. Power dissipation is rated at 0.2W, with a DC current gain ranging from 30 to 33. This component is designated as not recommended for new designs.

Feature Summary

• Integrates bias resistors directly into the transistor structure to simplify circuit design and reduce board space.
• Utilizes a small outline surface-mount package suitable for high-density mounting applications.

Applications

• General-purpose switching circuits in consumer electronics.
• Driver stages for logic interfaces requiring level shifting or buffering.
• Power management control circuits in portable devices.

Procurement Notes

Verify supply status carefully before procurement, as this specific part number is classified as not recommended for new designs. Confirm availability through authorized distributors for existing production support. Ensure ordering suffixes match exact packaging requirements. Cross-reference datasheets for any revisions that may affect pinout or electrical characteristics during replacement sourcing.

Selection Notes

Select this component only for maintenance or retrofit projects where original specifications must be preserved. Evaluate alternative models like the DTA143XU3HZG if new design flexibility is required. Consider thermal constraints due to the low power dissipation rating. Verify compatibility with operating voltage levels and required current gains for the specific application load.

Part Context

This device belongs to the ROHM DTA series of digital transistors, which combine bipolar junction transistors with integrated resistor networks. The XUB variant specifically denotes the SOT-323FL package configuration. It serves as a compact solution for replacing discrete resistor-transistor combinations in signal processing and switching roles.

Replacement Considerations

DTA143XU3HZG offers similar specifications with recommended status for new designs. DTA143XUA provides identical electrical parameters but uses the standard UMT3 package. Both alternatives maintain the same pinout and functionality for direct substitution in compatible layouts.