UMD3N-TP

Overview

The UMD3N-TP is a silicon NPN epitaxial planar transistor manufactured by Micro Commercial Components. It is housed in the SOT-323 (UMD3) surface-mount package, designed for high-speed switching and amplification applications. The device features a collector-emitter voltage rating of 50V and a continuous collector current capability of 100mA. Key electrical parameters include a DC current gain (hFE) ranging from 110 to 220 at a collector current of 10mA, and a low collector cutoff current. The component is RoHS compliant and halogen-free, suitable for portable electronic devices requiring small form factor transistors.

Feature Summary

• High-speed switching performance optimized for digital logic interfaces
• Compact SOT-323 surface-mount package for space-constrained designs
• RoHS compliant and halogen-free construction for environmental safety

Applications

• General-purpose switching in portable consumer electronics
• Driver circuits for LEDs and relays
• Logic level translation and buffer stages

Procurement Notes

Verify the specific ordering code against the manufacturer's latest datasheet to ensure correct packaging quantity and tape-and-reel specifications. Confirm that the UMD3N-TP designation matches the required pinout and electrical tolerances for your circuit design before finalizing procurement orders.

Selection Notes

Select this component when a compact NPN transistor with moderate current handling and high-speed switching is required. Ensure the application voltage does not exceed the 50V collector-emitter rating and that the thermal management strategy accommodates the power dissipation limits inherent to the SOT-323 package size.

Part Context

The UMD3N-TP belongs to the UMD3 series of surface-mount transistors from Micro Commercial Components. This series provides alternatives to traditional through-hole packages like SOT-23 or TO-92, offering similar electrical characteristics in a smaller footprint suitable for modern PCB layouts.

Replacement Considerations

Direct replacements may include other SOT-323 NPN transistors such as the BC847B or 2N7002 if pin compatibility and electrical ratings align. Verify pinout configurations carefully as substitutions may vary between manufacturers.