| E261 series | |
|---|---|
 E261 series running on the Izu Kyūkō Line, September 2021 | |
| Manufacturer | Kawasaki Heavy Industries, Hitachi |
| Designer | Ken Okuyama Design |
| Built at | Hyogo (Kawasaki) Kudamatsu (Hitachi) |
| Family name | Saphir Odoriko |
| Replaced | 251 series |
| Constructed | 2019 |
| Entered service | March 14, 2020 |
| Number built | 16 vehicles (2 sets) |
| Formation | 8 cars per trainset |
| Fleet numbers | RS1 – RS2 |
| Capacity | 164 seated |
| Operators | JR East |
| Specifications | |
| Car body construction | Aluminum |
| Car length | 21.4 m (70 ft 3 in) (end cars)[1] 20.5 m (67 ft 3 in) (intermediate cars)[1] |
| Maximum speed | 120 km/h (75 mph) |
| Traction system | SiC-MOSFET–VVVF (Hitachi) |
| Traction motors | 4 × Hitachi 140 kW (190 hp) MT79 3-phase AC induction motor |
| Electric system(s) | 1,500 V DC overhead lines |
| Current collector(s) | Pantograph |
| Track gauge | 1,067 mm (3 ft 6 in) |
The E261 series (Japanese: E261系, Hepburn: E261-kei) is an electric multiple unit (EMU) train type operated by East Japan Railway Company (JR East) in Japan on Saphir Odoriko limited express services between Tokyo and Izukyū-Shimoda. It was designed to replace the older 251 series trains that were used on Super View Odoriko limited express services from April 28, 1990, until March 13, 2020.