Infineon BSC0402NSATMA1: 40V Dual N-Channel MOSFET in a Compact PG-TSDSON-8 Package

The relentless drive towards miniaturization and higher efficiency in power electronics demands components that deliver robust performance in increasingly constrained spaces. Addressing this need, the Infineon BSC0402NSATMA1 stands out as a highly integrated dual N-channel MOSFET housed in an ultra-compact PG-TSDSON-8 package. This device is engineered to provide a powerful solution for a wide array of modern DC-DC conversion and power management applications.

At the heart of this MOSFET's appeal is its exceptional power density. By incorporating two advanced OptiMOS™ transistors in a single package, it effectively doubles the functionality while occupying a minimal PCB footprint. The package itself measures just 3.3mm x 3.3mm, making it an ideal choice for space-sensitive designs such as smartphones, tablets, wearables, and other portable electronics where every square millimeter is precious.

Despite its small size, the BSC0402NSATMA1 is built for performance. With a 40V drain-source voltage (VDS) rating, it is perfectly suited for primary switching roles in 12V and 24V power systems, including synchronous buck converters. A key to its efficiency is its remarkably low typical on-state resistance (RDS(on)), which is as low as 9.5mΩ per channel at 10V. This low resistance directly translates into reduced conduction losses, leading to higher overall system efficiency, cooler operation, and potentially simpler thermal management designs.

Furthermore, the device features low gate charge (Qg). This characteristic is critical for high-frequency switching operation, as it minimizes switching losses and enables faster switching speeds. The combination of low RDS(on) and low Qg allows power supply designers to achieve higher efficiency across a wide load range and push for higher power densities without compromising thermal performance.

The PG-TSDSON-8 package is also designed for enhanced thermal and electrical performance. Its exposed pad provides excellent thermal connectivity to the PCB, allowing the board itself to act as a heat sink to dissipate power loss effectively.

ICGOODFIND: The Infineon BSC0402NSATMA1 is a superior component that masterfully combines high power density, high efficiency, and robust performance in a miniature form factor. It is an optimal choice for designers aiming to create smaller, cooler, and more efficient power solutions for consumer and computing applications.

Keywords: Power Density, Low RDS(on), PG-TSDSON-8, Dual N-Channel, High Efficiency.