The SSU3N90A is a 900V N-Channel MOSFET produced by Fairchild/ON Semiconductor. Designed for high-voltage, high-speed switching applications, this MOSFET features low gate charge and fast switching times, making it ideal for power supplies and motor control circuits.

Applications:

• Power Supplies: Used in switched-mode power supplies (SMPS) to efficiently convert electrical power.
• DC-DC Converters: Implemented in DC-DC converters to regulate voltage levels in various electronic systems.
• Motor Control: Utilized in motor control circuits for efficient switching and power management of electric motors.
• Lighting Ballasts: Used in electronic ballasts for fluorescent and LED lighting systems.
• Inverters: Employed in inverters to convert DC power to AC power for applications like solar energy systems.

Features:

• N-Channel MOSFET: Enhancement-mode N-Channel MOSFET transistor.
• High Voltage: Rated for 900V drain-source voltage (VDS).
• Low On-Resistance: Low RDS(on) for reduced power dissipation and increased efficiency.
• Fast Switching Speed: Designed for high-speed switching performance in power circuits.
• Low Gate Charge: Low gate charge (Qg) for efficient gate drive and reduced switching losses.
• Avalanche Ruggedness: Capable of withstanding avalanche conditions for enhanced reliability.

Benefits:

• High Efficiency: Minimizes power losses due to low on-resistance and fast switching characteristics.
• Reliable Performance: Provides stable and reliable operation in high-voltage applications.
• Reduced Heat Dissipation: Low RDS(on) reduces heat generation, improving the thermal performance of the system.
• Simplified Circuit Design: Easy to integrate into various power electronic circuits.
• Improved System Performance: Enhances the overall performance of power supply and motor control systems.

Technical Specifications:

The SSU3N90A features a drain-source voltage (VDS) of 900V, a continuous drain current (ID) around 3A, and a gate-source voltage (VGS) of ±30V. Its on-resistance (RDS(on)) is minimized for improved efficiency. This MOSFET typically comes in a TO-251 or TO-252 package for effective heat management.