UMD18N-TP

Overview

The UMD18N-TP is a dual digital transistor manufactured by Micro Commercial Components. It integrates one NPN and one PNP bipolar junction transistor within a single SOT-363-6 surface-mount package. The device features typical base resistors of 4.7 kOhms with a resistor ratio of 2.1. It supports a continuous collector current of 100 mA and offers a minimum DC current gain (hFE) of 30 at 10 mA and 5 V. The component operates within a temperature range of -55°C to +150°C, dissipates up to 150 mW of power, and exhibits an output voltage of 300 mV.

Feature Summary

• Dual configuration combining NPN and PNP transistors in a compact SMD footprint
• Integrated base biasing network simplifies circuit design
• High thermal stability supporting extended operating temperatures

Applications

• Switching applications requiring complementary logic control
• Interface circuits for microcontroller I/O expansion
• Digital signal buffering and level shifting

Procurement Notes

Verify the specific datasheet version and RoHS compliance status directly with Micro Commercial Components before integration. Confirm that the SOT-363-6 package dimensions align with your PCB layout constraints. Ensure that the 100 mA current rating and 150 mW power dissipation limits are sufficient for your target application's thermal environment. Check for any recent product change notifications regarding manufacturing site or material composition updates.

Selection Notes

Select this component when a matched NPN/PNP pair is required for push-pull or differential switching stages. The integrated 4.7 kOhm base resistors reduce external component count compared to discrete solutions. Verify that the 300 mV saturation voltage meets your low-power switching requirements. Consider the 250 MHz transition frequency if high-speed digital switching is necessary for the specific design context.

Part Context

This part belongs to the UMD series of pre-biased digital transistors from Micro Commercial Components. It serves as a compact alternative to using separate discrete NPN and PNP transistors. The SOT-363-6 package allows for space-constrained designs while maintaining standard digital transistor functionality. It is distinct from other MCC series such as the UMH or UMC families which may offer different configurations or pinouts.

Replacement Considerations

Publicly confirmed substitute part numbers are not available in the provided documentation. Engineers should consult official manufacturer cross-reference lists or equivalent generic SOT-363 dual digital transistors with matching NPN/PNP configurations and similar electrical parameters.