DTA143TU3T106

Overview

The DTA143TU3T106 is a single PNP digital transistor manufactured by ROHM Semiconductor, housed in an SOT-323 (UMT3) surface-mount package. It features a built-in bias resistor configuration with R1 at 1 kΩ and R2 at 4.7 kΩ. Key electrical parameters include a collector-emitter voltage (VCEO) of -50 V, a continuous collector current (Ic) of -100 mA, and a power dissipation (Pd) of 200 mW. The device supports a maximum operating frequency of 250 MHz and operates within a temperature range of -55°C to +150°C.

Feature Summary

• Integrates bias resistors to simplify circuit design by eliminating the need for external input components.
• Provides high-density mounting through the compact SOT-323 surface-mount package.
• Supports high-speed switching applications with a transition frequency of 250 MHz.

Applications

• Inverter circuits
• Interface driving
• Driver circuits

Procurement Notes

Verify the specific suffix T106 to confirm the tape-and-reel packaging format and quantity. Ensure the component meets RoHS compliance requirements for the target assembly process. Cross-reference the manufacturer part number against official datasheets to validate pinout compatibility before integration into the final design.

Selection Notes

Select this component for designs requiring a PNP digital transistor with low input resistance. The SOT-323 package is suitable for space-constrained layouts. Verify that the -50 V rating aligns with the system's supply voltage and that the thermal management strategy accommodates the 200 mW power dissipation limit under worst-case conditions.

Part Context

This part belongs to the DTA143TU3 series of pre-biased transistors from ROHM Semiconductor. These devices are widely used in general-purpose electronics where simplified biasing networks reduce component count and board space. The TU3 designation specifically indicates the SOT-323 package type.

Replacement Considerations

Complementary NPN types such as the DTC143T series may be considered for differential signaling or push-pull configurations. Direct replacements must match the PNP polarity, SOT-323 footprint, and electrical ratings of -50 V and -100 mA.