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The AOI409 is a P-Channel Enhancement Mode Field Effect Transistor manufactured by Alpha & Omega Semiconductor. It utilizes Trench Power MV MOSFET technology to achieve low on-resistance and low gate charge, optimized for fast-switching applications. The device features a drain-source voltage of -60V and a continuous drain current of -26A at VGS=-10V. Static drain-source on-resistance is less than 40mΩ at VGS=-10V and less than 55mΩ at VGS=-4.5V. It is available in the TO-251A IPAK package.
Verify the specific ordering suffix to confirm the package type and reel configuration. The standard AOD409 designation corresponds to the TO-252 DPAK tape and reel form, while the AOI409 variant specifically denotes the TO-251A IPAK tube packaging. Confirm RoHS compliance status as required by your manufacturing specifications before finalizing procurement orders.
Select this component for designs requiring robust P-channel switching with high current capabilities. Ensure the gate drive voltage meets the threshold requirements for optimal RDS(ON) performance. Evaluate the thermal management strategy against the junction-to-case and junction-to-ambient thermal resistance values provided in the datasheet to maintain safe operating temperatures under maximum load conditions.
Alpha & Omega Semiconductor specializes in power semiconductor solutions, including MOSFETs and IGBTs. The AOI409 belongs to their portfolio of trench technology devices designed for efficiency and reliability. This part represents a specific packaging variation within the broader AOD409 family, tailored for different assembly line requirements.
The AOD409 is electrically identical to the AOI409 but differs in packaging (TO-252 vs TO-251A). Verify footprint compatibility when substituting. No other direct cross-manufacturer substitutes are confirmed in the official documentation.