"Alpha and Omega Semiconductor Introduces Ultra-Low Clamping Voltage High-Surge TVS"

"Alpha and Omega Semiconductor Introduces Ultra-Low Clamping Voltage High-Surge TVS"

Ideal for USB Type-C VBUS Protection for Laptops and Smartphones

SUNNYVALE, Calif., Oct. 16, 2019 – Alpha and Omega Semiconductor Limited,  a designer, developer and global supplier of a broad range of power semiconductors and power ICs, today introduced the AOZ8621UNI, a series of Transient Voltage Suppressor (TVS) for VBUS protection using the latest high-surge TVS platform. This new series is ideal for USB Type-C Power Delivery, including but not limited to laptops and smartphones.

The new AOZ8621UNI series covers a reverse working voltage (VRWM) range from 5V to 22V, which meets the requirement of USB Power Delivery. Required VRWM can be selected according to the maximum operating voltage on the Type-C VBUS pin. The AOZ8621UNI series is housed in a DFN 2x2 package and is ideally suited to fit the small footprint requirement of Type-C application small electronic devices.

With such low breakdown voltage, low clamping voltage, and high-surge current, AOS believes the new high-surge TVS platform will contribute to reducing the ESD and EOS failure rate in our partners’ and customers’ products,” said Michael K. S. Ng, Sr. Marketing Manager of the TVS product line at AOS.


Technical Highlights

Part Number



Rated IPP


Breakdown Voltage VBR




Max Max Typ Max
AOZ8621UNI-05 5 380 7 12
AOZ8621UNI-07 7.5 320 9 16
AOZ8621UNI-12 12 190 14.5 23.5
AOZ8621UNI-15 15 140 18 28
AOZ8621UNI-18 18 120 21 33
AOZ8621UNI-20 20 110 23.5 38
AOZ8621UNI-22 22 100 25.5 39


About AOS

Alpha and Omega Semiconductor Limited, or AOS, is a designer, developer and global supplier of a broad range of power semiconductors, including a wide portfolio of Power MOSFET, IGBT, IPM, TVS, HVIC, GaN/SiC, Power IC and Digital Power products. AOS has developed extensive intellectual property and technical knowledge that encompasses the latest advancements in the power semiconductor industry, which enables us to introduce innovative products to address the increasingly complex power requirements of advanced electronics. AOS differentiates itself by integrating its Discrete and IC semiconductor process technology, product design, and advanced packaging know-how to develop high performance power management solutions. AOS’ portfolio of products targets high-volume applications, including portable computers, flat panel TVs, LED lighting, smart phones, battery packs, consumer and industrial motor controls and power supplies for TVs, computers, servers and telecommunications equipment. For more information, please visit AOS website.


Meta Description: 

More information: Alpha & Omega Semiconductor