Infineon BSZ100N03MSG: High-Performance 30V OptiMOS™ Power MOSFET
In the realm of power electronics, efficiency, thermal performance, and reliability are paramount. The Infineon BSZ100N03MSG stands out as a premier solution, engineered to meet the rigorous demands of modern synchronous rectification, DC-DC conversion, and motor control applications. As part of Infineon’s esteemed OptiMOS™ family, this 30V power MOSFET exemplifies cutting-edge technology designed to maximize performance while minimizing losses.
A key highlight of the BSZ100N03MSG is its exceptionally low on-state resistance (RDS(on)) of just 1.0 mΩ (max) at 10 V. This ultra-low resistance directly translates to reduced conduction losses, enabling higher efficiency and improved thermal management. Whether deployed in high-frequency switch-mode power supplies (SMPS) or battery management systems, this characteristic ensures that more power is delivered to the load with minimal wasted energy.
Another standout feature is its optimized gate charge (Qg), which significantly enhances switching performance. The low Qg minimizes driving losses and allows for faster switching frequencies, making the BSZ100N03MSG ideal for applications where space and efficiency are critical, such as in server power supplies, telecom modules, and automotive subsystems. The combination of low RDS(on) and low Qg results in a superior figure of merit (FOM), a benchmark for MOSFET performance.

Thermal performance is further bolstered by the use of advanced trench technology and a robust package. The device is housed in a SuperSO8 package, which offers an efficient thermal path and a compact footprint. This allows designers to achieve higher power density without compromising reliability, even in thermally constrained environments.
Moreover, the BSZ100N03MSG is designed with robustness in mind, featuring high avalanche ruggedness and a strong body diode that ensures safe operation under inductive load conditions. This durability makes it suitable for applications prone to voltage spikes and harsh operating environments.
ICGOOODFIND: The Infineon BSZ100N03MSG sets a high standard for 30V power MOSFETs, delivering outstanding efficiency, thermal performance, and reliability for next-generation power systems.
Keywords:
OptiMOS™, Low RDS(on), Synchronous Rectification, Power Efficiency, Thermal Performance
