[1] Based on the earlier Tokyu 9000 series EMU design, two sets were introduced in 1992, followed by a third in 1993.

[1] In March 2018, set 2103 (excluding its T2 and T1 cars) underwent a programme of refurbishment.

The refurbishment included the implementation of a new traction system as well as an updated interior with new seating moquette and additional wheelchair spaces.

[8] Set 2101 was transferred to the Oimachi Line in March 2019; it was subsequently renumbered 9021.

[5] The fifteen cars deemed surplus as a result of the fleet's transfer were scrapped in 2018.