This document describes the features and characteristics of the STE40NK90ZD N-CHANNEL 900V - 0.14Ω - 40 A ISOTOP Super FREDMesh™ MOSFET, including extremely high dv/dt capability, 100% avalanche tested, minimized gate charge, very low intrinsic capacitances, and very good manufacturing repeatability. This product is suitable for high current, high-speed switching, and welding equipment.
This document is a datasheet for the STE40NK90ZD, an N-channel SuperFREDMesh™ MOSFET manufactured by STMicroelectronics. The device features a 900V drain-source voltage rating, a typical on-resistance of 0.14Ω, and a continuous drain current of 40A. It is designed with an optimized PowerMESH™ layout to ensure high dv/dt capability and is specifically recommended for high-current, high-speed switching applications such as welding equipment.
| Continuous Drain Current (25°C) | 40 A |
|---|---|
| Total Dissipation (25°C) | 600 W |
| Thermal Resistance Junction-case | 0.2 °C/W |
| Reverse Recovery Time | 930 ns |
The device is ideal for high-current, high-speed switching applications, particularly welding equipment.
Yes, it includes built-in back-to-back Zener diodes to enhance ESD capability and absorb voltage transients from gate to source.
Yes, the device is 100% avalanche tested.