DTC043EMT2L

Overview

The DTC043EMT2L is a pre-biased NPN digital transistor manufactured by ROHM Semiconductor. It integrates bias resistors to simplify circuit design. Key electrical parameters include a collector-emitter breakdown voltage (VCEO) of 50 V and a continuous collector current (Ic) of 100 mA. The device features a minimum DC current gain (hFE) of 20 at Ic=5mA, Vce=10V. Internal resistances are typically R1=4.7 kΩ and R2=4.7 kΩ. Power dissipation is rated at 150 mW. The transition frequency is 250 MHz. It operates within a temperature range of -55°C to +150°C. The component is housed in a SOT-723 (VMT3) surface-mount package.

Feature Summary

• Integrates built-in bias resistors to eliminate external components
• Simplifies inverter circuit configuration with only on/off conditions required
• Provides high reliability through standard-grade manufacturing

Applications

• General-purpose digital logic inverters
• Interface circuits for microcontrollers
• Switching applications in consumer electronics

Procurement Notes

Verify the specific ordering suffix T2L to confirm the SOT-723 packaging and taping quantity. Ensure compatibility with RoHS standards if required by the target application. Confirm that the component is suitable for non-automotive environments as per manufacturer guidelines. Check lead times for tape-and-reel quantities.

Selection Notes

Select this component when a compact NPN solution with integrated biasing is needed. The 50V rating suits low-voltage digital systems. The SOT-723 package offers space efficiency. Consider the hFE minimum of 20 for drive requirements. Verify thermal management for 150mW dissipation in enclosed designs.

Part Context

This part belongs to ROHM's standard digital transistor series, which incorporates bias resistors directly onto the silicon die. These devices replace discrete resistor-transistor combinations, reducing board space and assembly steps. The DTC043EM variant specifically denotes the NPN polarity with 4.7kΩ internal resistors.

Replacement Considerations

Direct substitutes may include other NPN digital transistors with similar 50V ratings and 4.7kΩ/4.7kΩ resistor configurations. Verify pinout compatibility and package dimensions (SOT-723/VMT3) before substitution. Check equivalent hFE and power dissipation ratings.