TDK Corporation presents the ACT1210L common-mode choke – the world’s smallest of its type for automotive Ethernet applications. Its dimensions are just 3.2 mm x 2.5 mm x 2.5 mm, making it just half the size of the existing ACT45L choke which measures in at 4.5 mm x 3.2 mm x 2.8 mm. Series production of the new common-mode chokes starts in June 2017.
http://www.global.tdk.com/news_center/press/201706204444.htm