DTA114WUAT106

Overview

The DTA114WUAT106 is a single PNP digital transistor manufactured by ROHM Semiconductor, housed in an SOT-323 (UMT3) surface-mount package. It features a collector-emitter voltage (VCEO) of -50 V and a continuous collector current of -100 mA. The device integrates built-in bias resistors with a typical input resistance (R1) of 10 kOhms and an emitter-base resistance (R2) of 4.7 kOhms, resulting in a resistor ratio of approximately 0.47. Key electrical parameters include a maximum operating frequency of 250 MHz, a DC current gain (hFE) minimum of 30 at -5 mA/-5 V, and a power dissipation rating of 200 mW. The component supports a maximum operating temperature of +150°C.

Feature Summary

• Integrates PNP bipolar junction transistor with dual built-in bias resistors for simplified circuit design
• Features low saturation voltage characteristics to minimize power loss during switching operations
• Designed with leak absorption properties to enhance stability in high-impedance environments

Applications

• Interface circuits between logic gates and peripheral devices
• Driver stages for relays and small motors
• Switching applications in portable electronic equipment

Procurement Notes

Verify the complete part number including the suffix T106 to confirm the specific reel packaging configuration. Confirm RoHS compliance status through official manufacturer documentation prior to integration. Ensure that the SOT-323 footprint matches the target PCB layout constraints. Validate thermal management requirements against the 200 mW power dissipation limit under expected operating conditions.

Selection Notes

Select this component when a compact PNP solution with integrated biasing is required for space-constrained designs. Compare the 10 kOhm input resistance against other series variants if different drive currents are needed. Consider the -50 V rating relative to the system supply voltage to ensure adequate margin. Evaluate the 250 MHz frequency response against signal speed requirements.

Part Context

This component belongs to the DTA114 series of pre-biased transistors from ROHM Semiconductor. The series offers various resistor combinations and polarity options within the same UMT3 package family. The DTA114WUAT106 specifically provides the PNP variant with a 10k/4.7k resistor network, distinguishing it from NPN counterparts like the DTC114 series or other PNP configurations with different resistance ratios.

Replacement Considerations

Publicly confirmed substitute part numbers are not available in the provided source data. Verify compatibility with equivalent parts from other manufacturers based on pinout, voltage ratings, and internal resistor values before substitution.