SMUN5214DW1T1G

Overview

The SMUN5214DW1T1G is a digital NPN transistor from onsemi, integrating a single NPN bipolar junction transistor with an internal base bias resistor network. This configuration simplifies circuit design by reducing component count and board space. The device operates in a surface-mount SOT-363 package, offering high switching speeds and low power consumption. Key electrical characteristics include a collector-emitter voltage of 50V and a continuous collector current of 100mA. The integrated resistors provide precise biasing, ensuring consistent performance across temperature variations and manufacturing tolerances.

Feature Summary

• Integrated dual-resistor network for simplified biasing
• High-speed switching capability for digital applications
• Compact SOT-363 surface-mount package

Applications

• General-purpose digital switching
• Level shifting circuits
• Logic interface buffering

Procurement Notes

Verify the exact ordering suffix DW1T1G to ensure correct packaging and tape-and-reel specifications. Confirm that the manufacturer designation matches onsemi's current product line status. Check for any recent lifecycle notifications or obsolescence warnings directly from the manufacturer's official documentation before placing orders.

Selection Notes

Select this component when a compact solution for NPN switching with fixed base bias is required. Ensure the application voltage does not exceed the 50V collector-emitter rating. Verify that the load current remains within the 100mA continuous limit. Consider thermal dissipation requirements based on the specific PCB layout and ambient operating conditions.

Part Context

This part belongs to onsemi's UNx series of digital transistors, which combine BJTs with built-in bias resistors. It serves as a drop-in replacement for discrete resistor-transistor combinations, streamlining assembly processes. The DW1 variant specifically denotes the SOT-363 package style, distinguishing it from other form factors in the same functional family.

Replacement Considerations

Direct substitutes may include other UNx series parts with similar resistor values and package types. Verify pinout compatibility and electrical ratings before substitution. Cross-reference with manufacturer cross-reference tools for confirmed equivalent part numbers.