DTA124EUBTL

Overview

The DTA124EUBTL is a PNP digital transistor manufactured by ROHM Semiconductor, featuring built-in bias resistors to simplify circuit design. It operates with a collector-emitter voltage of -50 V and a continuous collector current of -100 mA. The device includes two integrated resistors, R1 and R2, both typically rated at 22 kOhms, with a resistance ratio of 1. Key electrical parameters include a minimum DC current gain (hFE) of 56 at -5 mA and -5 V, a transition frequency of 250 MHz, and a power dissipation capacity of 200 mW. Packaged in the SOT-323FL-3 (UMT3F) surface-mount format, it supports operation up to +150°C.

Feature Summary

• Integrates dual bias resistors (R1 and R2) to eliminate external components for inverter configurations.
• Provides simplified on/off control logic through pre-biased internal architecture.
• Utilizes compact SMD packaging suitable for high-density surface mount applications.

Applications

• Inverter circuits requiring direct logic interface without external base resistors.
• Driver stages for low-power switching applications.
• General-purpose digital signal buffering and level shifting.

Procurement Notes

Verify component authenticity against official ROHM Semiconductor datasheets and ordering information. Confirm that the specific suffix 'TL' corresponds to the required tape-and-reel packaging configuration. Ensure compatibility with RoHS directives if environmental compliance is mandated for the target assembly process.

Selection Notes

Select this component when a PNP digital transistor with equal bias resistor values (22 kOhm each) is required. It is suitable for designs needing a 50 V breakdown voltage and 100 mA current handling. Consider the UMT3F package dimensions for PCB layout constraints and verify thermal management requirements given the 200 mW power dissipation limit.

Part Context

This part belongs to the DTA124 series of digital transistors from ROHM Semiconductor. It serves as a standard-grade discrete solution for integrating biasing functions directly into the transistor package. The series is designed to reduce board space and assembly complexity compared to discrete resistor-transistor combinations.

Replacement Considerations

Direct substitutes include PDTA124EU from Nexperia USA Inc., which shares similar pinout and functional characteristics. Verify electrical parameter alignment and package compatibility before implementation.