MMDT3904-TP

Overview

The MMDT3904-TP is a dual NPN bipolar junction transistor (BJT) array manufactured by Micro Commercial Components. It integrates two independent NPN transistors within a single SOT-363 surface-mount package. The device supports a maximum continuous collector current of 200 mA and offers a collector-emitter breakdown voltage of 40 V, with a collector-base voltage rating of 60 V and an emitter-base voltage limit of 5 V to 6 V. Key electrical characteristics include a transition frequency of 300 MHz, a DC current gain minimum of 40, and a power dissipation capacity of 200 mW. The component operates reliably across a temperature range from -55°C to +150°C.

Feature Summary

• Dual configuration integrating two matched NPN transistors in a compact six-pin SOT-363 package for space-efficient circuit design.
• High-speed switching capability supported by a 300 MHz transition frequency suitable for general-purpose applications.
• Robust thermal performance allowing operation at junction temperatures up to 150°C.

Applications

• General-purpose signal switching and amplification circuits
• Differential amplifier stages requiring matched transistor pairs
• Push-pull output configurations in audio or driver circuits

Procurement Notes

Verify the specific datasheet revision and RoHS compliance status directly with the manufacturer before procurement. Confirm that the SOT-363 footprint matches the target PCB layout. Ensure the supply chain source provides authentic MCC components to avoid counterfeit risks associated with high-volume discrete semiconductors.

Selection Notes

Select this component when a dual NPN configuration is required to minimize board space compared to using separate single transistors. Verify that the 200 mA current limit and 40 V voltage ratings exceed the peak operational requirements of the target circuit. Consider the SOT-363 package dimensions against available silkscreen and assembly constraints.

Part Context

This part belongs to the MMDT3904 series of dual NPN switching transistors. It serves as a surface-mount alternative to through-hole dual transistor packages, offering similar electrical characteristics in a smaller form factor. The device is commonly used in consumer electronics and industrial control boards where space optimization is critical.

Replacement Considerations

The DMMT3904HE3-TP is a verified equivalent dual NPN BJT array from the same manufacturer. Other industry-standard replacements include the MMDT3904-7-F from Diodes Inc. Always verify pinout compatibility and absolute maximum ratings before substituting.