DTA043EUBTL

Overview

DTA043EUBTL is a single PNP pre-biased transistor manufactured by Rohm Semiconductor, housed in the UMT3F surface-mount package. It features an integrated base resistor (R1) of 4.7 kOhms and an emitter-base resistor (R2) of 4.7 kOhms. The device supports a maximum collector-emitter voltage of 50 V and a continuous collector current of 100 mA. Key electrical characteristics include a minimum DC current gain (hFE) of 20 at 5 mA and 10 V, a maximum saturation voltage of 150 mV at 500 µA base current and 5 mA collector current, and a transition frequency of 250 MHz. Maximum power dissipation is rated at 200 mW.

Feature Summary

• Integrates dual resistors to simplify circuit design and reduce component count
• Optimized for high-speed switching applications with a 250 MHz transition frequency
• Low saturation voltage ensures efficient power handling during conduction

Applications

• General-purpose digital switching circuits
• Interface drivers for logic level translation
• Load switching in portable electronic devices

Procurement Notes

Verify the specific ordering suffix to confirm packaging format, as variants exist for tape-and-reel, cut-tape, and Digi-Reel configurations. Confirm RoHS compliance status and moisture sensitivity level requirements against project specifications before finalizing procurement orders.

Selection Notes

Select this component when a PNP digital transistor with matched 4.7 kOhm internal resistors is required. Ensure the 50 V voltage rating and 100 mA current capacity align with the load requirements. Consider the UMT3F footprint constraints during PCB layout planning.

Part Context

This part belongs to the DTA043 series of digital transistors from Rohm Semiconductor. It serves as the PNP counterpart to NPN variants within the same family, sharing similar electrical performance metrics while differing in polarity and pinout orientation relative to standard NPN configurations.

Replacement Considerations

Direct substitutes include DTC043EUBTL (NPN equivalent) and DTA043EUBTLDKR (same device, different packaging). Verify pin compatibility and thermal characteristics before substitution.