DTA044TUBTL

Overview

The DTA044TUBTL is a PNP digital transistor manufactured by Rohm Semiconductor, featuring built-in bias resistors within a compact UMT3F surface-mount package. It operates with a maximum collector-emitter voltage of 50 V and supports a continuous collector current of 60 mA. The device includes a single base resistor (R1) with a nominal value of 47 kOhms. Key electrical characteristics include a minimum DC current gain (hFE) of 100 at 5 mA and 10 V, a maximum saturation voltage of 150 mV at specific test conditions, and a transition frequency of 250 MHz. Maximum power dissipation is rated at 150 mW.

Feature Summary

• Integrates a built-in bias resistor to simplify circuit design by eliminating the need for external input components.
• Provides high-speed switching capabilities suitable for applications requiring fast response times.
• Utilizes a small surface-mount footprint to facilitate dense board layouts.

Applications

• General-purpose switching circuits
• Driver circuits for logic interfaces
• Inverter configurations in digital systems

Procurement Notes

Verify the exact suffix against the manufacturer's official datasheet to confirm pinout compatibility and electrical tolerances. Ensure the selected variant matches the required packaging format for automated assembly processes. Cross-reference the component marking code with the latest production documentation to avoid counterfeit or obsolete stock issues during sourcing.

Selection Notes

Select this component when a PNP configuration with a 47 kOhm base resistance is required for signal inversion or level shifting. Consider the 50 V voltage rating and 60 mA current limit to ensure adequate headroom for the target application. Evaluate the thermal performance within the UMT3F package relative to the expected power dissipation in the final design environment.

Part Context

This part belongs to Rohm's standard digital transistor series, which combines bipolar junction transistors with integrated biasing networks. These devices are designed to replace discrete resistor-transistor combinations, reducing component count and assembly time. The DTA044TUBTL specifically addresses applications needing reliable PNP switching with defined input impedance characteristics.

Replacement Considerations

Consult the manufacturer's replacement guide for verified substitutes such as the DTA044TEBTL, which shares similar electrical specifications but utilizes an EMT3F package. Verify pin compatibility and thermal characteristics before implementing any alternative component in existing designs.