KD brings its latest technology to China, thanks to AETA 2025

2025-09-26

KD was present this week at AETA 2025 Global Automotive Ethernet Technology and Applications Summit, which took place in Shanghai, China. During the event, a lot of interested visitors approached our booth to see our demo and learn more about our technology. Among those visitors were some potential tier1s which were interested in our solution.

At AETA 2025 our Asian team, with David Cheng and Hiro Cheng, presented our new KD7251, which is the first transceiver that is compliant with the IEEE Std 802.3cz standard specification for multigigabit glass optical fiber (GOF) automotive Ethernet. It implements the nGBASE-AU physical layers in a single-chip solution, supporting 10, 5, 2.5 Gb/s. In addition, it includes bridging functionalities to enable the connectivity of sensors, displays, and processors in the vehicle.

The KD7251 reaches 40 meters with 4 inline connectors over standard duplex OM3 multi-mode glass optical fiber (MM-GOF) at 10 Gb/s in the whole temperature range. The same cables and connectors will be reused for higher bitrates (25, 50 Gb/s and higher in the future). With its integrated EMC shielding, the KD7251 transceiver guarantees the highest component-level EMC compliance without the need for any external additions. This translates into a port with a small PCB area and a reduced Bill of Materials (BOM), with no need for ESD protections, common mode chokes, EMI filters or DC blocks.

As native automotive part, the KD7251 supports MACsec, ASIL-B FuSa, TSN, Wake-up & Sleep, OAM, and dependability functions. Thus, the transceiver enables a broad range of use cases with optical technology, such as multigigabit Ethernet backbone, zonal gateway connectivity, smart antenna link, and connectivity for radars, cameras, lidar, displays, and high-performance computing units.

We also took advantage of our presence at AETA to showcase our technology at a robotics event held at the same center. Thanks to this participation, we are bringing our innovative technology to the important Asian market.

About KD

KD is a Spanish semiconductor company leading the market for high-speed data transmission through optical fiber in challenging environments. For 15 years, the company has been reinventing the way optical communications are made to make them robust and affordable enough for the automotive, consumer and industrial markets.