DTC123YEBTL

Overview

The DTC123YEBTL is an NPN digital transistor manufactured by Rohm Semiconductor, featuring built-in bias resistors within a UMT3F (SOT-416FL) surface-mount package. It supports a supply voltage of 50V and a collector current of 0.1A with a power dissipation of 0.15W. The internal circuit includes an input resistance (R1) of 2.2kΩ and an emitter-base resistance (R2) of 10kΩ. The device guarantees a DC current gain (hFE) of 33 or more at 10mA and 5V. It operates within a temperature range of -55°C to 150°C and complies with RoHS standards.

Feature Summary

• Integrates bias resistors to simplify inverter circuit design without external components
• Provides high-density mounting through compact SMD packaging
• Ensures stable switching performance with defined leakage absorption characteristics

Applications

• General-purpose logic level shifting and signal inversion
• Driver circuits for LEDs and small loads
• Interface buffering between microcontrollers and peripheral devices

Procurement Notes

Verify the specific suffix 'EBTL' against the manufacturer's official datasheet to confirm the exact resistor values and package dimensions. Ensure the ordering part number matches the required tape-and-reel quantity and that the component meets the intended environmental specifications for the target application.

Selection Notes

Select this component when a compact NPN solution with integrated biasing is required for low-power switching applications. Compare the 2.2kΩ input resistance and 10kΩ emitter-base resistance against circuit requirements to ensure proper drive current compatibility. Verify that the 0.15W power dissipation rating suffices for the expected thermal conditions.

Part Context

This part belongs to Rohm's standard digital transistor series, which combines a single NPN bipolar junction transistor with pre-biased resistors. The DTC123 variant specifically utilizes a 2.2kΩ base resistor and a 10kΩ emitter resistor configuration, distinguishing it from other models in the family with different resistance ratios.

Replacement Considerations

Publicly confirmed substitute part numbers are not available in the provided source material. Cross-reference with similar NPN digital transistors having identical R1/R2 ratios and package types only after verifying electrical parameter equivalence.