EMD2T2R

Overview

The EMD2T2R is a dual digital transistor from ROHM Semiconductor, integrating one NPN and one PNP pre-biased transistor within an SOT-563 (EMT6) surface-mount package. It features built-in bias resistors to simplify circuit design. Key electrical parameters include a collector-emitter voltage of 50V for the NPN and -50V for the PNP, with a continuous collector current of 100mA. The device operates up to a maximum frequency of 250MHz and dissipates 150mW of power. Input resistance values are typically 1kΩ or 22kΩ depending on the specific variant configuration.

Feature Summary

• Integrates independent NPN and PNP transistor elements within a single compact package to eliminate interference.

Applications

• Differential amplifier circuits
• High-frequency crystal oscillators
• Starters

Procurement Notes

Verify the specific suffix and resistor configuration against the official datasheet before ordering. Ensure the selected variant matches the required input resistance values for the target application. Confirm RoHS compliance status as indicated in the manufacturer's documentation.

Selection Notes

Select this component when space-saving dual transistor solutions are required for general-purpose switching or amplification. Consider the 50V breakdown voltage and 100mA current limits during design. Verify that the integrated resistor values align with the driving logic levels.

Part Context

This part belongs to the EMD2 series of general-purpose dual digital transistors manufactured by ROHM Semiconductor. The series is designed to replace discrete transistor pairs, reducing mounting costs and board area while maintaining independent element performance.

Replacement Considerations

Equivalent parts include DTA124E and DTC124E configurations, though these are single transistors requiring two units for equivalent functionality. Direct pin-compatible replacements should be verified against the specific resistor ratios and voltage ratings.