AOTF4N90

Single FETs, MOSFETs Overview

The AOTF4N90 is an N-channel Power MOSFET from the Alpha & Omega Semiconductor HVMOS family, designed for high-voltage switching applications. It features a drain-source voltage (Vdss) of 900 V and a continuous drain current (Id) of 4 A at case temperature. The device utilizes a TO-220F through-hole package with a maximum power dissipation of 37 W. Key electrical characteristics include a gate threshold voltage (Vgs(th)) of up to 6 V at 1 mA and a maximum gate-source voltage (Vgs) of ±30 V. It operates within a junction temperature range of -55°C to 150°C.

Single FETs, MOSFETs Feature Summary

• High voltage capability with 900 V drain-source breakdown
• Robust thermal performance in TO-220F through-hole packaging
• Designed for hard-switching applications in the HVMOS family

Single FETs, MOSFETs Applications

• High-voltage DC-DC converters
• Industrial motor control systems
• Uninterruptible power supplies (UPS)

Single FETs, MOSFETs Procurement Notes

Verify the specific datasheet revision and RoHS compliance status directly with Alpha & Omega Semiconductor or authorized distributors before procurement. Confirm that the TO-220F package variant matches the required lead configuration and thermal pad specifications for the target PCB layout. Ensure the ordering part number corresponds exactly to the AOTF4N90 designation to avoid confusion with similar HVMOS family members.

Single FETs, MOSFETs Selection Notes

Select this component when designing circuits requiring high blocking voltage above 800 V combined with moderate current handling around 4 A. The TO-220F package is suitable for applications where board space allows for through-hole mounting and direct heatsinking. Evaluate the gate charge and threshold voltage requirements against the driving circuit capabilities to ensure reliable turn-on and turn-off behavior under the intended load conditions.

Single FETs, MOSFETs Part Context

The AOTF4N90 belongs to the HVMOS (High Voltage MOSFET) product family manufactured by Alpha & Omega Semiconductor. This series focuses on optimizing the trade-off between conduction losses and switching speeds for high-voltage environments. The TO-220F form factor provides a standardized mechanical interface for industrial and consumer power electronics, distinguishing it from surface-mount alternatives in the same voltage class.

Single FETs, MOSFETs Replacement Considerations

Consult official cross-reference lists for verified substitutes such as other 900 V N-channel MOSFETs in TO-220 packages. Verify that any replacement maintains equivalent Vdss, Id, and thermal resistance values. Do not assume pinout compatibility without explicit manufacturer confirmation.