Infineon SS05N70: 700V N-Channel Power MOSFET for High-Efficiency Switching Applications

In the realm of power electronics, achieving higher efficiency, robustness, and reliability in switching applications is paramount. The Infineon SS05N70, a 700V N-Channel Power MOSFET, stands out as a premier solution engineered to meet these demanding requirements. This device is specifically designed to excel in high-voltage, high-speed switching environments, making it an ideal choice for applications such as switch-mode power supplies (SMPS), power factor correction (PFC), lighting controls, and industrial motor drives.

Built on Infineon's advanced proprietary technology, the SS05N70 offers an impressive blend of low on-state resistance and high switching performance. With a drain-source voltage (VDS) rating of 700V, it provides ample headroom for off-line power supplies operating from universal input voltages (85V AC to 265V AC), ensuring enhanced safety margins and durability against voltage spikes and transients. The MOSFET's low gate charge (QG) and low effective output capacitance (COSS) contribute to minimal switching losses, which is critical for achieving high efficiency in high-frequency circuits. This allows designers to push the switching frequencies higher, leading to more compact magnetic components and reduced overall system size.

Moreover, the SS05N70 features a very low on-resistance (RDS(on)) of just 0.45Ω, which directly translates to reduced conduction losses and lower heat generation during operation. This characteristic not only improves the efficiency of the power conversion stage but also simplifies thermal management challenges. The device is housed in a TO-220 package, which offers excellent thermal characteristics and ease of mounting to heat sinks, further supporting operation in high-power scenarios.

The robustness of this MOSFET is underscored by its high avalanche ruggedness and 100% automated testing, ensuring consistent quality and reliability under strenuous conditions. Its fast intrinsic body diode also enhances performance in applications requiring freewheeling or inductive load handling.

ICGOODFIND: The Infineon SS05N70 is a high-performance 700V MOSFET that delivers exceptional efficiency and reliability for demanding switching power applications. Its optimal combination of low RDS(on), low gate charge, and high voltage capability makes it a superior choice for designers aiming to maximize power density and energy savings in their systems.

Keywords:

High Voltage Switching

Low On-Resistance

Power Efficiency

Switch-Mode Power Supply

Avalanche Ruggedness