MMDT4403-TP

Overview

The MMDT4403-TP is a complementary dual bipolar junction transistor (BJT) manufactured by Micro Commercial Components. It integrates one NPN and one PNP transistor within a single SOT-363 surface-mount package. The device features an epitaxial planar die construction designed for low-power amplification and switching applications. Key electrical specifications include a maximum collector-emitter voltage of 40V, a continuous collector current of 200mA, and a power dissipation rating of 200mW. The component operates across a temperature range from -55°C to +150°C and complies with RoHS directives.

Feature Summary

• Complementary NPN/PNP configuration in a single ultra-small surface mount package
• Epitaxial planar die construction for reliable performance
• Designed specifically for low-power amplification and switching tasks

Applications

• Low-power signal amplification circuits
• General-purpose switching applications
• Portable electronic devices requiring compact packaging

Procurement Notes

Verify the specific manufacturer designation as MCC when sourcing this part number, as MMDT4403 is also produced by other vendors such as Diodes Inc. and Panjit. Confirm that the suffix -TP indicates the standard tape-and-reel or cut-tape packaging format intended for automated assembly processes. Ensure compliance requirements match the target application's regulatory standards.

Selection Notes

Select this component when a matched complementary pair is required in a minimal footprint. The 40V rating and 200mA current capacity suit general-purpose logic and analog interfaces. Compare thermal resistance values against the PCB copper area available for heat dissipation to ensure operation remains within the specified junction temperature limits during continuous duty cycles.

Part Context

This component belongs to the MMDT series of complementary transistors, which are widely used in consumer electronics and industrial control systems. It serves as a direct functional alternative to similar parts like the MMBT4401/4403 pairs, offering integrated NPN and PNP elements to simplify circuit board layout and reduce component count in dual-transistor configurations.

Replacement Considerations

Direct pin-compatible substitutes include the MMDT4403 from Diodes Incorporated and Panjit International. Verify that replacement sources maintain identical electrical parameters, particularly the 40V breakdown voltage and 200mA current ratings, to ensure circuit compatibility without redesign.