DTC123EU3HZGT106

Overview

The DTC123EU3HZGT106 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 2.2 kOhms for both R1 and R2. 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 20 at 20 mA and 5 V, a maximum operating frequency of 250 MHz, and a power dissipation rating of 200 mW. It meets AEC-Q101 automotive qualification standards.

Feature Summary

• Integrates internal bias resistors to simplify circuit design by eliminating external components.
• Qualified for automotive applications under the AEC-Q101 reliability standard.
• Provides high-speed switching capabilities suitable for digital logic interfaces.

Applications

• Automotive electronic control units requiring qualified discrete components.
• General-purpose digital switching circuits in consumer electronics.
• Interface drivers between microcontrollers and peripheral devices.

Procurement Notes

Verify the specific ordering suffix GT106 to confirm the tape-and-reel packaging format and quantity. Confirm RoHS compliance status through official manufacturer documentation prior to integration. Ensure the component matches the required SOT-323 footprint and pinout configuration for the target PCB layout.

Selection Notes

Select this component when a compact NPN digital transistor with integrated biasing is required for space-constrained designs. The 2.2 kOhm resistor ratio is suitable for standard logic level interfacing. Consider the 50 V voltage rating and 100 mA current limit against the specific load requirements of the application circuit.

Part Context

This part belongs to the DTC123EUA series of pre-biased transistors from ROHM. It shares functional characteristics with other members of the family but differs in packaging and specific resistor configurations. The EU3HZG suffix indicates the specific SOT-323 variant with automotive-grade reliability.

Replacement Considerations

DTA123EU3HZGT106 is listed as a similar level replacement with the same pinout and package. Verify polarity differences as DTA variants are PNP while this model is NPN. Direct NPN substitutes within the same series should be cross-referenced for identical electrical specifications.