DIN 41617-1
DIN 41617-1 Two-part connectors for printed boards, grid 2.5 mm; common mounting features, survey of typs; dimensions of type L, M, N and S
standard by Deutsches Institut Fur Normung E.V. (German National Standard), 09/01/1989
standard by Deutsches Institut Fur Normung E.V. (German National Standard), 09/01/1989