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The UMW AO3400A is an N-channel enhancement mode MOSFET housed in a SOT-23 surface-mount package. It features a drain-source breakdown voltage (VDS) of 30V and a continuous drain current (ID) of 5.8A at VGS = 10V. The device exhibits low on-resistance, specified as 28mΩ at VGS = 10V, 33mΩ at VGS = 4.5V, and 52mΩ at VGS = 2.5V. Gate threshold voltage ranges from 0.7V to 1.4V. Total gate charge is typically 9.7nC at VGS = 4.5V. Power dissipation is rated at 1.4W at 25°C ambient temperature. Operating junction and storage temperatures span from -55°C to +150°C.
Verify the manufacturer designation matches UMW when sourcing this component. Confirm the package type is SOT-23 and the marking code corresponds to the specific revision. Ensure the datasheet parameters align with your circuit requirements before finalizing procurement decisions.
Select this component for applications requiring a compact N-channel MOSFET with moderate current handling capabilities. Consider the thermal resistance values and power dissipation limits relative to your expected operating conditions. Verify that the gate drive voltage provided by your controller falls within the effective range for the desired on-resistance.
This part belongs to the AO3400 series of N-channel MOSFETs manufactured by UMW. It is designed for general-purpose switching applications where space efficiency is critical. The SOT-23 package allows for high-density PCB layouts while maintaining reliable electrical performance under standard operating conditions.
AO3480A is listed as a substitute option with similar packaging.