DTC123YUAHE3-TP

Overview

The DTC123YUAHE3-TP is a single NPN digital transistor manufactured by Micro Commercial Components (MCC). It integrates internal biasing resistors within an SOT-323-3 surface-mount package. Key electrical specifications include a maximum collector-emitter voltage of 50 V and a continuous collector current of 100 mA. The device features a typical base resistor (R1) of 2.2 kOhms and an emitter resistor (R2) of 47 kOhms, resulting in a typical resistance ratio of 21. Minimum DC current gain (hFE) is specified as 80 at 10 mA and 5 V. Power dissipation is rated at 200 mW, with a maximum operating temperature of +150 C and a saturation voltage of 300 mV.

Feature Summary

• Integrates NPN bipolar junction transistor with built-in biasing network for simplified circuit design
• Utilizes compact SOT-323-3 surface-mount packaging to minimize board space requirements
• Provides high thermal stability with a maximum operating junction temperature of +150 C

Applications

• Switching applications in portable consumer electronics
• Driver circuits for low-power loads in industrial control systems
• Logic level translation interfaces between microcontrollers and peripheral devices

Procurement Notes

Verify the complete part number including the HE3 suffix to ensure compliance with specific environmental standards such as halogen-free requirements. Confirm package availability matches the SOT-323-3 footprint during procurement planning. Cross-reference manufacturer documentation for any recent product change notices that may affect lead times or material composition.

Selection Notes

Select this component when a single NPN digital transistor with a 2.2 kOhm base resistor is required. Ensure the application voltage does not exceed the 50 V collector-emitter breakdown rating. Verify that the 100 mA continuous current limit meets load requirements. Consider the 200 mW power dissipation capability relative to ambient thermal conditions.

Part Context

This component belongs to the DTC123 series of pre-biased NPN transistors from MCC. The HE3 suffix typically denotes enhanced environmental compliance, often indicating halogen-free construction. It serves as a direct replacement for standard DTC123 variants where specific regulatory compliance is mandated. The YUA designation specifies the SOT-323 package type and internal resistor values.

Replacement Considerations

Compatible substitutes include DTC123JCAHE3-TP and DTC123JUA-TP, which share identical electrical characteristics and pin configurations. Verify package compatibility before substitution.