DTC123JU3HZGT106

Overview

The DTC123JU3HZGT106 is a single NPN digital transistor with built-in bias resistors, manufactured by Rohm Semiconductor. It operates within a collector-emitter voltage of 50 V and supports a maximum continuous collector current of 100 mA. The device features an internal base resistor (R1) of 2.2 kOhms and an emitter-base resistor (R2) of 47 kOhms. Key electrical characteristics include a DC current gain (hFE) of at least 80 at 10 mA and 5 V, a transition frequency of 250 MHz, and a power dissipation rating of 200 mW. The component is housed in a UMT3 (SOT-323) surface-mount package and holds AEC-Q101 automotive qualification.

Feature Summary

• Integrates NPN bipolar junction transistor with dual internal bias resistors to simplify circuit design by eliminating external components.
• Automotive-grade reliability certified under AEC-Q101 standards for high-temperature operation up to 150°C.
• High-speed switching capability with a transition frequency of 250 MHz suitable for digital signal processing.

Applications

• Inverter circuits for automotive electronic control units requiring simplified input stages.
• Driver circuits for relays, solenoids, and small motors in vehicle systems.
• Logic level shifting and buffering between microcontrollers and peripheral devices.

Procurement Notes

Verify the complete part number including the suffix GT106 to ensure correct packaging configuration. Confirm AEC-Q101 compliance requirements if deploying in automotive environments. Check datasheet for thermal derating curves relative to ambient temperature. Ensure ESD protection protocols are followed during handling due to the small UMT3 package size.

Selection Notes

Select this component when a compact NPN solution with fixed 2.2k/47k resistor ratios is required. Compare against DTC123JU3HZG for identical electrical performance but different packaging or reel specifications. Consider DTC124GU3HZGT106 if a higher input resistance (22k Ohm) is needed for lower drive current applications.

Part Context

This part belongs to the DTC123 series of Bias Resistor Built-in Transistors (BRBTs). It shares the same pinout and electrical specifications as the DTC123JU3HZG, differing primarily in the specific tape-and-reel packaging designation. The series is designed to replace discrete resistor-transistor combinations in space-constrained designs.

Replacement Considerations

DTC123JU3HZG is confirmed as a direct functional equivalent with identical pinout and package. DTC123JUA is listed as a similar level alternative but is marked not recommended for new designs. Verify that any substitute maintains the 2.2k Ohm R1 and 47k Ohm R2 values.