DTC144GU3T106

Overview

The DTC144GU3T106 is a single NPN digital transistor manufactured by ROHM Semiconductor, housed in an SOT-323 (UMT3) surface-mount package. It features built-in bias resistors configured as an R2-only type, with a typical emitter-base resistance of 47 kOhms. Key electrical parameters include a collector-emitter breakdown voltage (VCEO) of 50 V, a continuous collector current of 100 mA, and a power dissipation rating of 200 mW. The device exhibits a minimum DC current gain (hFE) of 68 at 5 mA and 5 V, with a transition frequency of 250 MHz. It operates within a temperature range of -55°C to +150°C.

Feature Summary

• Integrates bias resistors composed of thin-film technology for complete isolation and elimination of parasitic effects.
• Supports negative input bias voltage capabilities due to the isolated resistor structure.
• Designed for compact surface-mount applications requiring simplified circuit layouts.

Applications

• Inverter circuits
• Interface logic drivers
• General-purpose switching applications

Procurement Notes

Verify component authenticity against official ROHM Semiconductor documentation before integration. Confirm that the specific suffix T106 corresponds to the required tape-and-reel packaging format. Ensure compliance with RoHS3 directives and check for any regional export control classifications such as EAR99. Validate supply chain sources to guarantee long-term availability given the nine-year product lifecycle commitment.

Selection Notes

Select this component when a single NPN digital transistor with an R2-only configuration is required. The 47 kOhm emitter-base resistor value suits applications needing specific biasing characteristics without external base resistors. Consider the 50 V VCEO and 100 mA Ic limits for low-voltage, moderate-current switching tasks. The UMT3 package is suitable for space-constrained PCB designs compared to larger through-hole alternatives.

Part Context

This part belongs to the DTC144 series of digital transistors from ROHM Semiconductor. The series is characterized by long-life products with cumulative shipments exceeding 6 billion units. The DTC144GU3 variant specifically denotes the NPN polarity with R2-only resistor configuration in the SOT-323 package. It serves as a standard-grade discrete semiconductor solution for general electronics rather than automotive-grade equipment.

Replacement Considerations

Publicly confirmed substitute part numbers are not available in the provided source data. Designers should consult official ROHM cross-reference tools or datasheets for compatible equivalents within the DTC144 family or other manufacturers' SOT-323 NPN digital transistors with similar R2 values.