DTA043ZUBTL

Overview

The DTA043ZUBTL 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 incorporates a base resistor (R1) of 4.7 kΩ and an emitter-base resistor (R2) of 47 kΩ. Key electrical characteristics include a minimum DC current gain (hFE) of 80 at 5 mA and 10 V, a transition frequency of 250 MHz, and a maximum power dissipation of 150 mW. It is housed in the EMT3F (SOT-416FL) surface-mount package.

Feature Summary

• Integrates dual bias resistors to reduce component count and board space
• Provides stable switching performance with defined input resistance ratios
• Designed for high-frequency applications with a 250 MHz transition frequency

Applications

• General-purpose switching circuits
• Driver stages for relays and small motors
• Logic level translation interfaces

Procurement Notes

Verify the specific suffix 'UBTL' against the official ROHM datasheet to confirm the tape-and-reel packaging quantity and RoHS compliance status. Ensure the ordering part number matches the required supply chain documentation standards before finalizing procurement orders.

Selection Notes

Select this component when a PNP configuration with a 4.7 kΩ base resistor is required. Compare the 150 mW power dissipation limit against thermal constraints. Verify that the SOT-416FL footprint aligns with the PCB layout requirements compared to standard SOT-323 packages.

Part Context

This part belongs to ROHM's DTC043/DTA043 series of pre-biased transistors. These devices are designed to replace discrete resistor-transistor combinations, offering improved reliability and reduced assembly costs in compact electronic designs.

Replacement Considerations

The DTA043ZEBTL is listed as a recommended replacement with identical pinout and package specifications. Verify electrical parameter equivalence before substitution.