DTC123YUA-TP

Overview

The DTC123YUA-TP is an NPN digital transistor manufactured by Micro Commercial Components (MCC) in a SOT-323 surface-mount package. It integrates thin-film bias resistors to simplify circuit design. Key electrical specifications include a maximum supply voltage of 50 V, a continuous output current of 100 mA, and a power dissipation rating of 200 mW at 25°C. The device features a typical transition frequency of 250 MHz and a minimum DC current gain of 33. The internal resistor network consists of a base resistor (R1) with a typical value of 2.2 kΩ and an emitter resistor (R2), yielding a resistance ratio (R2/R1) of approximately 4.5.

Feature Summary

• Built-in bias resistors enable inverter configuration without external input components
• Thin-film resistors provide complete isolation for negative input biasing capability
• Elimination of parasitic effects through integrated resistor structure

Applications

• Inverter circuits requiring simplified input configurations
• Driver circuits for relays, solenoids, or lamps
• Switching applications in consumer electronics and industrial control systems

Procurement Notes

Verify the component authenticity by checking the device marking '62' on the SOT-323 package against official MCC documentation. Ensure the ordering suffix '-TP' corresponds to the Tape & Reel packaging format containing 3,000 pieces per reel as specified in the manufacturer's ordering information. Confirm RoHS compliance status via the supplier's certification documents prior to integration into production lines.

Selection Notes

Select this component when a compact NPN switching solution with integrated biasing is required. The SOT-323 package offers space efficiency compared to larger transistor packages. Consider the 2.2 kΩ base resistance value for appropriate drive current requirements. Verify that the 50 V collector-emitter voltage rating meets the specific application's supply voltage constraints and that the 200 mW power dissipation limit accommodates the thermal environment.

Part Context

The DTC123YUA belongs to the DTC123 series of NPN digital transistors from Micro Commercial Components. This series is designed to replace discrete resistor-transistor combinations, reducing board space and assembly costs. The YUA variant specifically denotes the SOT-323 package configuration with defined electrical characteristics including a 250 MHz transition frequency and integrated thin-film resistors for enhanced performance stability.

Replacement Considerations

Compatible substitutes include other NPN digital transistors with similar pinouts and electrical ratings, such as the DTC123EUA or DTC123JUA from MCC, provided they match the SOT-323 package and 2.2 kΩ base resistance requirements. Cross-reference datasheets to ensure equivalent Vceo, Ic, and R1 values before substitution.