DTA043EMT2L

Overview

The DTA043EMT2L is a PNP digital transistor manufactured by ROHM Semiconductor, featuring built-in biasing resistors to simplify circuit design. It operates in an SOT-723 (VMT3) surface-mount package with three terminals. Key electrical specifications include a maximum collector-emitter voltage of -50 V and a continuous collector current of -100 mA. The device has a power dissipation rating of 150 mW and a transition frequency of 250 MHz. Typical internal resistances are R1 = 4.7 kΩ and R2 = 10 kΩ. The minimum DC current gain (hFE) is 35 at -5 mA and -10 V. It supports a maximum operating temperature of +150°C.

Feature Summary

• Integrates pre-biased resistors to enable simple on/off control without external input components.
• Utilizes compact SOT-723 packaging for efficient surface-mount assembly.

Applications

• General-purpose switching circuits
• Inverter logic configurations
• Interface driving for microcontrollers

Procurement Notes

Verify the specific suffix EM and T2L against official ROHM documentation to confirm the exact resistor values and tape-and-reel quantity. Ensure compatibility with standard SOT-723 footprints during PCB layout. Confirm RoHS compliance status through the manufacturer's latest environmental declaration before finalizing procurement orders.

Selection Notes

Select this component when a PNP digital transistor with high hFE (minimum 35) and moderate speed (250 MHz) is required. The specific resistor ratio of 4.7kΩ/10kΩ suits applications needing defined input impedance. Verify that the -50V voltage rating meets the system's supply requirements and that the SOT-723 package fits the available board space constraints.

Part Context

This part belongs to the DTA043 series of digital transistors from ROHM. It serves as the PNP counterpart to NPN variants like the DTC043EM. The series is designed for standard-level applications, explicitly excluding automotive use unless specified otherwise. It complements other models in the family such as DTA143E and DTA043ZEBTL.

Replacement Considerations

Direct substitutes within the same series include DTA043XMT2L or DTA043ZEBTL, provided the resistor ratios and package types match the design requirements. Verify pinout compatibility between SOT-723 and similar packages like EMT3F if considering alternative housings.