New high SOA MOSFET optimised for 12V hot swap applications

21-10-2022 | Alpha and Omega Semiconductor | Power

Alpha and Omega Semiconductor Limited has released the AONS30300, a 30V MOSFET with low on-resistance. The AONS30300 features a high SOA capability making it ideal for demanding applications, including hot swap and eFuse.

A high SOA is crucial in server hot swap applications where the MOSFET must be robust to manage the high inrush current effectively. The AONS30300 provides high SOA robustness under 10VDS with 10ms pulse width and an SOA limit ~48V. This new MOSFET is supplied in a compact DFN 5x6 package with a maximum Rd(son) of 0.58mOhm at an applied Gate-Source Voltage equal to 10VGS. Also, the AONS30300 is rated at Tj=175C.

“High reliability is an essential metric in data centre infrastructure. That’s why MOSFETs that feature elevated SOA are critical in today’s hot swap applications, where designers must specify the most robust and reliable components to meet server demands. We designed the AONS30300 with high SOA capabilities and low on-resistance to help our customers meet these challenging application requirements and uptime goals,” said Peter H. Wilson, Sr. director of MOSFET product line at AOS.


By Seb Springall