DTA143ZUBTL

Overview

The DTA143ZUBTL is a PNP digital transistor manufactured by ROHM Semiconductor, featuring built-in bias resistors within a compact SOT-323FL (UMT3F) surface-mount package. It supports a supply voltage of -50V and a continuous collector current of -100mA. The device incorporates an input resistance (R1) of 4.7kΩ and an emitter-base resistance (R2) of 47kΩ, yielding a typical resistor ratio of 10. Key electrical characteristics include a minimum DC current gain (hFE) of 80 at -10mA and -5V, a maximum operating frequency of 250MHz, and a power dissipation rating of 200mW. The component operates reliably up to a maximum junction temperature of +150°C.

Feature Summary

• Integrates PNP transistor with dual built-in bias resistors for simplified circuit design
• Compact SOT-323FL package optimized for high-density surface-mount applications
• High-speed switching capability with a maximum operating frequency of 250MHz

Applications

• General-purpose signal switching in consumer electronics
• Driver circuits for low-power loads in portable devices
• Logic level translation and interface buffering

Procurement Notes

Verify the specific ordering suffix 'TL' against the manufacturer's official documentation to confirm tape-and-reel packaging specifications. Ensure compatibility with RoHS directives if required by the target application. Cross-reference the part number with authorized distributors to confirm current availability status and lead times prior to procurement planning.

Selection Notes

Select this component when a PNP digital transistor with a 4.7kΩ input resistor is required in a small outline package. Compare the 200mW power dissipation limit against thermal requirements. Verify that the -50V collector-emitter voltage rating exceeds the maximum circuit voltage. Consider the SOT-323FL footprint dimensions for PCB layout constraints.

Part Context

This part belongs to ROHM's standard digital transistor series, which combines transistors and bias resistors into single packages. The DTA143 variant specifically denotes a PNP configuration with a 4.7kΩ input resistor. The ZU3 suffix typically indicates the SOT-323 package, while the BHZG or TL suffixes denote specific taping and environmental compliance variations within the same functional family.

Replacement Considerations

DTA143ZU3HZGT106 offers similar specifications in a standard SOT-323 package. DTA143ZE3HZGTL provides equivalent functionality in an SOT-416 package. Verify pinout compatibility and package dimensions before substituting.