ON Semiconductor FQAF17N40 N-Channel QFET® MOSFET

The ON Semiconductor FQAF17N40 is a high-performance N-Channel QFET® MOSFET that provides state-of-the-art technology for energy-efficient power management in a wide range of applications. This MOSFET is designed to deliver high-speed switching with low on-state resistance, making it an ideal choice for high-efficiency power supply designs.

With a drain-source voltage (V<sub>DS) of 400V and a continuous drain current (I<sub>D) of 17A, the FQAF17N40 is capable of handling high power levels, making it suitable for both industrial and consumer applications. The device's low gate charge (Q<sub>g) enhances its fast switching capability, which is essential for reducing switching losses in power conversion systems.

The FQAF17N40 features a rugged, high-voltage structure that provides reliable performance under demanding conditions. Its high avalanche energy rating ensures safe operation during events such as load dump or short circuit, which adds an extra layer of protection for the connected circuitry. The MOSFET's body diode exhibits low reverse recovery time (t<sub>rr), which further contributes to the efficiency of the device in applications that require fast diode recovery, such as switch-mode power supplies and motor drives.

Designed with the environment in mind, the FQAF17N40 is RoHS compliant, ensuring that it meets the latest environmental standards and regulations. Its TO-3PF package is not only robust but also offers excellent thermal performance, which is critical for maintaining stability and extending the lifespan of the device in high-temperature environments.

Applications for the FQAF17N40 include, but are not limited to, power supplies for servers, telecom equipment, lighting systems, and high-power motor control circuits. The combination of its high voltage and current capabilities, fast switching, and energy-efficient operation make the FQAF17N40 from ON Semiconductor an excellent choice for designers looking to optimize their power management solutions.

For detailed specifications and application support, designers and engineers can refer to the datasheet and technical documentation provided by ON Semiconductor.