This is a narrow-bodied variant for Jōban Line and Tokyo Metro Chiyoda Line through services, replacing the 203 series and 207-900 series EMUs previously used. The first ten-car set was delivered to Matsudo Depot from Tokyu Car Corporation in May 2009. It entered service on 9 September 2009.
These trains have also been used on through services on Odakyu lines since 2016.
In 2017 the last set was delivered (set number 19 built by J-TREC).
Like all trains running into the Tokyo Subway, these trains are fitted
with emergency doors in the driver's cabin to allow for the evacuation
of passengers in the Chiyoda Line's tunnels.