DTC144EU3HZGT106

Overview

The DTC144EU3HZGT106 is a single NPN digital transistor manufactured by ROHM Semiconductor, housed in an SOT-323-3 surface-mount package. It features a built-in bias resistor network with typical values of 47 kOhms for both R1 and R2, resulting in a resistance 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 maximum operating frequency of 250 MHz, and a power dissipation rating of 200 mW. It is qualified to the AEC-Q101 automotive standard.

Feature Summary

• Integrates bias resistors to eliminate external components for inverter circuit configurations
• Automotive-grade reliability compliant with AEC-Q101 qualification standards
• High-speed switching capability suitable for frequencies up to 250 MHz

Applications

• Automotive electronic systems requiring high-reliability switching components
• Inverter circuits where external base resistors are omitted
• General-purpose digital switching in consumer and industrial electronics

Procurement Notes

Verify the specific suffix GT106 against official ROHM documentation to confirm tape-and-reel packaging quantities and lead times. Ensure compatibility with SOT-323 footprint requirements during PCB layout. Cross-reference the AEC-Q101 certification status if the application mandates strict automotive quality controls. Confirm RoHS compliance details directly from the manufacturer's latest specification sheet before finalizing procurement orders.

Selection Notes

Select this component when a single NPN digital transistor with equal bias resistors (R1=R2=47k) is required in a compact SOT-323 form factor. It is appropriate for applications needing 50V blocking voltage and 100mA current handling. Consider the 200mW power dissipation limit and +150°C maximum junction temperature for thermal management. Compare against other DTC144 variants if different resistance ratios or packages like SOT-23 are needed.

Part Context

This part belongs to the ROHM DTC144 series of Bias Resistor Built-in Transistors (BRBTs). The EU3 designation indicates the SOT-323 package type, while HZ denotes the internal resistor configuration. The T106 suffix typically specifies the taping quantity and reel specifications. This series is designed to simplify circuit design by integrating necessary biasing elements directly into the transistor package.

Replacement Considerations

Direct substitutes within the same family include DTC144EU3HZG (without tape/reel suffix) or DTC144GUAT106 (different package). Verify pinout compatibility and electrical ratings such as VCEO and hFE before substitution. Alternative packages like SOT-23 (e.g., DTC144ECAT116) require footprint redesign.