DTC123EMT2L

Overview

The DTC123EMT2L is a pre-biased NPN digital transistor manufactured by ROHM Semiconductor, designed for surface-mount applications. It integrates biasing resistors to simplify circuit design by eliminating the need for external input components. Key electrical specifications include a collector-emitter voltage (VCEO) of 50 V and a continuous collector current of 100 mA. The device features an input resistance (R1) of 2.2 kΩ and an emitter-base resistance (R2) of 2.2 kΩ. It operates with a DC current gain (hFE) of at least 20 at 5 mA and 5 V. The transition frequency is rated at 250 MHz, with a power dissipation capacity of 150 mW. The component is housed in a compact SOT-723 (VMT3) package.

Feature Summary

• Integrates built-in biasing resistors to enable inverter circuit configuration without external input resistors
• Simplifies circuit design by requiring only on/off condition settings for operation
• Provides high-speed switching capabilities suitable for interface and driver applications

Applications

• Inverter circuits
• Interface circuits
• Driver circuits

Procurement Notes

Verify the specific ordering suffix T2L to confirm the tape-and-reel packaging format containing 8000 units per reel. Ensure compatibility with standard SMD reflow soldering profiles for the VMT3 package. Confirm RoHS compliance status if required by specific environmental regulations. Check the recommended product status to ensure long-term availability for production planning.

Selection Notes

Select this component when a compact NPN digital transistor with 50 V rating and 100 mA current capability is required. The integrated 2.2 kΩ resistor values are suitable for standard logic level interfacing. Consider the SOT-723 package size constraints for high-density PCB layouts. Verify that the 150 mW power dissipation rating meets the thermal requirements of the target application environment.

Part Context

This part belongs to ROHM's standard digital transistor series, which combines bipolar junction transistors with internal biasing networks. The DTC123EMT2L serves as the NPN counterpart to the DTA123EM series PNP devices. It is categorized under single pre-biased bipolar transistors intended for general-purpose switching and signal inversion tasks in consumer and industrial electronics.

Replacement Considerations

The complementary PNP type is the DTA123EM series. For direct substitution, verify pinout compatibility and matching electrical parameters such as VCEO, IC, and hFE. Ensure the replacement component supports the same SOT-723 package dimensions and mounting style.