Infineon IRL40SC209 200V StrongIRFET™ Power MOSFET for High-Efficiency Switching Applications
The demand for high-efficiency power conversion continues to grow across industries such as automotive systems, industrial motor drives, and switch-mode power supplies (SMPS). To meet these demands, power MOSFETs must offer low losses, high reliability, and robust switching performance. The Infineon IRL40SC209, a 200V StrongIRFET™ Power MOSFET, stands out as a highly optimized solution designed specifically for high-frequency and high-efficiency switching applications.
A key highlight of the IRL40SC209 is its exceptionally low on-state resistance (RDS(on)) of just 3.9 mΩ (max). This ultra-low resistance is critical for minimizing conduction losses, which directly translates into higher system efficiency and reduced heat generation. The lower the RDS(on), the more efficiently the MOSFET can handle high currents without significant power dissipation, making it ideal for high-current applications such as DC-DC converters and motor controllers.
Furthermore, this MOSFET is engineered for superior switching performance. Its optimized gate charge (Qg) and low internal capacitances ensure fast switching transitions, which are essential for operating at high frequencies. Reducing switching losses is particularly important in modern power supplies where higher switching frequencies allow for the use of smaller passive components like inductors and capacitors, leading to more compact and cost-effective designs.
The device is part of Infineon’s StrongIRFET™ family, which is renowned for its high reliability and ruggedness. The IRL40SC209 features an avalanche-rated design and strong capability to handle repetitive unclamped inductive switching (UIS), making it suitable for harsh environments where voltage spikes and inductive loads are common. This robustness ensures long-term operational stability and protects against unexpected failure modes.
Packaged in a TO-252 (DPAK) package, the IRL40SC209 offers an excellent balance between power handling and board space requirements. The package is designed for efficient thermal management, allowing effective heat dissipation from the die to the PCB, which helps maintain performance under continuous high-load conditions.
The Infineon IRL40SC209 200V StrongIRFET™ sets a high standard for power switching components by combining ultra-low RDS(on), fast switching capability, and outstanding robustness—making it a top-tier choice for designers aiming to maximize efficiency and reliability in power electronics.
---
Keywords:
Power MOSFET, High-Efficiency Switching, Low RDS(on), StrongIRFET, Avalanche Rugged
