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AOS releases HV super junction MOSFETs


MOSFETs optimised to meet the high efficiency needs of servers, solar Inverters, EV charging, and industrial power applications

Alpha and Omega Semiconductor (AOS) has released two αMOS5 600V FRD Super Junction MOSFETs.

αMOS5 is AOS’s high voltage MOSFET platform, designed to meet the needs of servers, workstations, telecom rectifiers, solar Inverters, EV charging, motor drives and industrial power applications.

αMOS5 FRD FETs are engineered with strong intrinsic body diode to handle hard commutation scenarios, when the freewheeling body diode is in reverse recovery due to abnormal operations, such as short-circuit or start-up transients.

The two products released, the AOK095A60FD (TO-247) and AOTF125A60FDL (TO-220F), are 600V FRD FETs with 95mohm and 125mohm maximum Rdson, respectively. In tests conducted by AOS engineers, the body diodes of these two FRD FETs have survived high di/dt, under abnormal system conditions, even at elevated junction temperatures of up to 150°C.

Additionally, AOS says that tests have shown that the devices’ turn off energy (Eoff) are noticeably lower than the competition’s, which contributes to higher efficiency in light or mid-load conditions.

“We defined our products for traditional power supplies, as well as DC/DC and DC/AC converters of solar inverters and ESS systems, where bi-directional topologies are needed. As energy storage-ready inverters become the trend and high voltage batteries are utilised increasingly in AC-coupled systems, the AOK095A60FD and AOTF125A60FDL will become industry leading solutions for bi-directional DC/DC and inverter/PFC applications that serve a wide range of power supplies, solar PV inverters, and ESS hybrid converters,” said Richard Zhang, senior director of product line and global power supply business at AOS.

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