DTA143TUAT106

Overview

The DTA143TUAT106 is a single PNP digital transistor manufactured by ROHM Semiconductor, housed in an SOT-323-3 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 4.7 kOhms and a minimum DC current gain (hFE) of 100 at -1 mA and -5 V. Maximum power dissipation is rated at 200 mW, with a maximum operating temperature of +150 C and a cutoff frequency of 250 MHz.

Feature Summary

• Integrates built-in bias resistors to eliminate the need for external input components in inverter circuits.
• Utilizes thin-film resistors with complete isolation to minimize parasitic effects and allow positive input biasing.
• Simplifies circuit design by requiring only on/off condition settings for operation.

Applications

• Inverter circuits
• Interface logic
• Driver stages

Procurement Notes

Verify the supply status carefully before procurement as this component is designated as Not Recommended for New Designs (NRND). Confirm that existing inventory meets project requirements since new production may be limited. Ensure compatibility with current board layouts and validate that alternative sourcing options are available if long-term availability becomes a constraint for ongoing manufacturing.

Selection Notes

Select this component when a compact PNP digital solution with a 4.7 kOhm input resistor is required. Verify that the -50 V voltage rating and -100 mA current capacity align with the target application's load conditions. Consider the SOT-323-3 package dimensions for PCB space constraints. Evaluate thermal management needs given the 200 mW power dissipation limit in the specified enclosure.

Part Context

This part belongs to the DTA143TUA series of PNP digital transistors from ROHM Semiconductor. It shares pinout and functional characteristics with related variants such as the DTA143TU3. The series is characterized by its integration of bias resistors within a small surface-mount footprint, designed for efficient signal switching and level shifting in low-power electronic applications.

Replacement Considerations

The DTA143TU3 is listed as a similar level replacement with the same pinout and package. Verify electrical parameter equivalence and ensure the substitute maintains the required 4.7 kOhm input resistance and -50 V rating for direct interchangeability in existing designs.