DTA143EU3T106

Overview

The DTA143EU3T106 is a PNP digital transistor manufactured by ROHM Semiconductor, featuring built-in biasing resistors to simplify circuit design. It operates with a collector current of -0.1 A and a collector-emitter voltage of -50 V. The device includes an input resistance (R1) and an emitter-base resistance (R2), both typically valued at 4.7 kΩ. Key electrical characteristics include a DC current gain (hFE) of 30 or higher and a maximum operating frequency of 250 MHz. Power dissipation is rated at 0.2 W, with a storage temperature range from -55°C to +150°C. The component is housed in a UMT3 (SOT-323) surface-mount package.

Feature Summary

• Integrated biasing resistors eliminate the need for external input components, enabling straightforward inverter circuit configuration.
• Single-switch operation requires only on/off condition setting, reducing schematic complexity.
• Compact SMD packaging supports automated surface-mount assembly processes.

Applications

• General-purpose inverter circuits
• Driver circuits for logic interfaces
• Switching applications in consumer electronics

Procurement Notes

Verify the specific ordering suffix T106 to confirm the taping quantity and reel specifications match project requirements. Confirm RoHS compliance status through official documentation before integration. Ensure the sourcing channel provides valid traceability for the semiconductor batch. Check for any automotive qualification requirements if the application demands AEC-Q101 standards, as this standard version may differ from qualified variants.

Selection Notes

Select this component when a PNP digital transistor with equal internal resistor ratios is required. The 4.7 kΩ resistor values are suitable for standard logic level driving. Consider the -50 V rating for low-voltage switching tasks. Verify that the UMT3 package dimensions fit the PCB footprint constraints. Compare against complementary NPN types like the DTC143E series if symmetrical push-pull configurations are needed.

Part Context

This part belongs to the DTA143EU3 series of pre-biased transistors. It serves as a PNP counterpart to the DTC143E NPN series. The series is recognized for long-term supply availability, with a planned production lifespan of nine years. The component is classified as a standard-grade product, distinct from automotive-qualified versions.

Replacement Considerations

DTA143EU3HZGT106 is a recommended replacement with the same pinout and package. DTA143EUA is not recommended for new designs but shares the UMT3 package and polarity.