MMDT4401-TP

Overview

The MMDT4401-TP is a dual NPN small signal bipolar junction transistor manufactured by Micro Commercial Components (MCC). It integrates two independent NPN transistors within a single SOT-363 surface-mount package. The device supports a maximum continuous collector current of 0.6 A and offers a collector-emitter breakdown voltage of 40 V. Key electrical characteristics include a collector-base voltage rating of 60 V, an emitter-base voltage limit of 6 V, and a total power dissipation capacity of 200 mW. The component operates reliably across a temperature range from -55°C to +150°C.

Feature Summary

• Dual NPN configuration in an ultra-small SOT-363 plastic package
• Epitaxial planar die construction for stable performance
• Lead-free finish compliant with RoHS standards
• Moisture sensitivity level 1 classification

Applications

• Low power amplification circuits
• General purpose switching applications
• Surface mount assembly for compact electronic devices

Procurement Notes

Verify the specific manufacturer marking code K4M on received components to confirm authenticity from Micro Commercial Components. Ensure the ordering suffix matches the required lead-free specification. Cross-reference the datasheet revision number against the supplier documentation to guarantee parameter accuracy before integration into production designs.

Selection Notes

Select this component when a dual NPN topology is required in a six-pin surface-mount footprint. The 0.6 A current rating and 40 V voltage limits define its operational envelope. Consider the 200 mW power dissipation constraint for thermal management during high-frequency or high-duty-cycle switching operations.

Part Context

This part belongs to the MMDT series of dual bipolar transistors produced by MCC. It serves as a compact alternative to discrete single-transistor implementations, reducing board space. The SOT-363 package allows for automated pick-and-place manufacturing processes common in modern electronics assembly lines.

Replacement Considerations

Direct pin-compatible substitutes include the MMDT4401HE3-TP from the same manufacturer. Other manufacturers produce equivalent dual NPN devices in SOT-363 packages, such as the MMDT4401Q-7-F from Diodes Incorporated, provided electrical ratings are verified.