Low capacitance TVS for USB4.0 and Thunderbolt 4.0 plus HDMI2.1 protection

05-05-2022 | Alpha and Omega Semiconductor | Power

Alpha and Omega Semiconductor Limited (AOS) has released its AOZ8S204BL2 and ­AOZ8S205BL2, 2-in-1 TVS for super high-speed line protection using the latest Super Low Cap TVS platform and advanced packaging. These new devices are excellent for USB Type-C and HDMI applications, including notebooks, desktop PC, game consoles, and 4K and 8K TVs.


With ultra-low capacitance of 0.15pF and 0.075pF, the devices are optimised for super high-speed line protection, including but not limited to USB4.0, Thunderbolt 4.0, HDMI2.1 and avoids transmission error by minimising the capacitance effect. The devices are two-channel devices (2-in-1) housed in a 0.63mm x 0.33mm leadless SMD and ideal for the small footprint need of a USB Type-C connector.


2-in-1 with ultra-low capacitance device offers the best solution for an excellent pin-out for differential signal, space-saving of super high-speed interface application, and lessens the part counts on circuit board. The company believes this approach (2-in-1 with ultra-low capacitance device) helps customers deliver the best design and logistics management.


“As the leading vendor in ESD protection solutions in high-speed interfaces such as USB, HDMI, and Thunderbolt, we have released a new TVS platform that provides a much better figure of merit (FOM) on the clamping voltage times capacitance. In addition to low capacitance, it is also important to have a lower clamping voltage and faster response during the ESD event to protect the ESD-sensitive chipset. The new platform of Super Low Cap with very low capacitance and very low clamping voltage is ideal for high-speed line protection,” said Charles Chen, marketing director of TVS Product Line at AOS. “We believe the new competitive platform will reduce the ESD failure rate in our partners and customers’ electronic products.”

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