DTA143ZUBHZGTL

Overview

The DTA143ZUBHZGTL is a PNP digital transistor manufactured by ROHM Semiconductor, featuring built-in bias resistors for simplified circuit design. It operates with a collector current of -100 mA and a supply voltage of -50 V. The device incorporates thin-film resistors with R1 at 4.7 kΩ and R2 at 47.0 kΩ, providing a resistance ratio of approximately 10. Packaged in the UMT3F (SOT-323FL) surface-mount format, it supports a maximum power dissipation of 200 mW and functions up to a transition frequency of 250 MHz. The component is RoHS compliant and designed for high-temperature operation.

Feature Summary

• Integrates thin-film bias resistors with complete isolation to eliminate parasitic effects and allow positive input biasing.
• Simplifies inverter circuit configuration by removing the need for external input resistors.
• Utilizes PNP epitaxial planar silicon structure for reliable switching performance.

Applications

• Inverter circuits
• Interface logic drivers
• General-purpose driver applications

Procurement Notes

Verify the specific suffix against official documentation, as ordering codes may vary by region or distributor. Confirm that the component status aligns with project requirements, noting that some variants in this series are designated as not recommended for new designs. Ensure compatibility with existing PCB footprints for the UMT3F package before finalizing procurement orders.

Selection Notes

Select this component when a compact PNP digital transistor with integrated biasing is required for space-constrained designs. The UMT3F package offers a small form factor suitable for dense surface-mount layouts. Consider the -50V rating and -100mA current capability to ensure adequate headroom for the intended load conditions and switching speeds.

Part Context

This part belongs to the DTA143 series of digital transistors from ROHM Semiconductor. These devices are engineered to replace discrete resistor-transistor combinations, reducing board space and assembly costs. The series includes various packages and resistance configurations to accommodate different interface standards and driving requirements in consumer and industrial electronics.

Replacement Considerations

DTA143ZU3HZGT106 is listed as a recommended replacement with similar specifications but utilizes the SOT-323 package instead of UMT3F. Verify pinout compatibility and thermal characteristics when substituting, as package dimensions differ slightly between UMT3F and standard SOT-323 formats.