DTC144EU3T106

Overview

The DTC144EU3T106 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 with typical values of 47 kOhms for both R1 and R2, resulting in a resistor ratio of 1. The device supports a collector-emitter voltage (VCEO) of 50 V and a continuous collector current of 100 mA. Key electrical parameters include a minimum DC current gain (hFE) of 68 at 5 mA and 5 V, a transition frequency of 250 MHz, and a power dissipation rating of 200 mW. The component operates within a temperature range up to +150°C and meets AEC-Q101 qualification standards.

Feature Summary

• Integrates dual bias resistors to eliminate external components for inverter circuit configurations.
• Provides high-speed switching capabilities suitable for applications requiring fast response times.
• Designed for compact surface-mount assembly with standardized pinout compatibility.

Applications

• Inverter circuits for logic level translation
• Driver circuits for small-signal switching loads
• Biasing networks in portable electronic devices

Procurement Notes

Verify the specific ordering suffix against official ROHM documentation to ensure correct packaging and grade specifications. Confirm that the selected variant aligns with the required thermal and electrical constraints for the target application environment. Cross-reference part numbers with authorized distributors to avoid counterfeit components.

Selection Notes

Select this component when a single NPN digital transistor with equal bias resistors is required in a compact SOT-323 package. Ensure the design accommodates the 50 V voltage rating and 100 mA current limit. Consider the 200 mW power dissipation capability relative to the expected operating conditions and ambient temperature.

Part Context

This part belongs to the DTC144 series of pre-biased transistors from ROHM Semiconductor. It is specifically designed to simplify circuit design by integrating base and emitter-base resistors into a single semiconductor die. The EU3 designation indicates the SOT-323 package type, while T106 refers to the tape and reel packaging format.

Replacement Considerations

DTC144EU3HZGT106: Same package and electrical characteristics but higher reliability grade. DTC144EE3HZGTL: Similar function in SOT-416 package. DTC144GUAT106: Equivalent performance in UMT3 package.