DTA044EUBTL

Overview

The DTA044EUBTL is a PNP digital transistor manufactured by ROHM Semiconductor, featuring built-in biasing resistors to simplify circuit design. It operates in the SOT-323FL-3 (UMT3F) surface-mount package with three terminals. Key electrical specifications include a maximum collector-emitter voltage (VCEO) of -50 V and a continuous collector current of -100 mA. The device exhibits a minimum DC current gain (hFE) of 80 at -5 mA and -10 V, with a transition frequency of 250 MHz. Power dissipation is rated at 200 mW, and it includes a typical input resistor of 47 kΩ.

Feature Summary

• Integrates pre-biasing resistors to eliminate external components for inverter circuits
• Optimized for high-speed switching applications with a 250 MHz transition frequency
• Compact SMD footprint suitable for space-constrained PCB layouts

Applications

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

Procurement Notes

Verify component authenticity through authorized distribution channels or direct manufacturer engagement. Confirm RoHS compliance status and specific packaging configurations such as reel or cut tape quantities against official datasheets prior to procurement. Ensure storage conditions adhere to moisture sensitivity level requirements to maintain device reliability during assembly processes.

Selection Notes

Select this component when a PNP configuration with integrated base and emitter resistors is required for compact designs. Compare hFE values and saturation voltages against alternative models like DTC044EUBTL if NPN polarity is needed. Verify that the 50 V breakdown voltage meets system requirements and that the SOT-323FL-3 package aligns with available footprint constraints.

Part Context

This part belongs to the DTA series of digital transistors from ROHM Semiconductor, designed to replace discrete resistor-transistor combinations. The 'EUB' suffix indicates the specific resistance ratio and package type within the product family. These components are standard-grade devices intended for general electronic equipment rather than automotive or safety-critical applications.

Replacement Considerations

Direct functional substitutes include other PNP digital transistors with similar 47 kΩ input resistance and -50 V ratings, such as the DTA044TEBTL. Verify pinout compatibility and thermal characteristics before substitution.