Based on the concept of "Bright, Quiet and comfortable", the design is renewed from 681 series cars. Double skin carbody using aluminum extrusion and sound insulating construction of floor enable to realize the improvement of passenger comfort.

Type Capacity (Seating)
Electric System	DC 1500V,　AC 20000V, Overhead
Body Length	20670mm(Driving car) 20600mm(Middle car)
Body Width	2915mm
Body Height	4080mm(with pantograph)　3400mm(without pantograph)