The MX23A40SF1 is a 40-position socket connector housing from the MX23A series, designed for waterproof applications in automotive, motorcycle, and industrial equipment. It features a compact low-profile design with a socket connector height of 22.2 mm maximum and incorporates a double fin structure for high reliability in socket contacts. The housing is constructed from glass-filled PBT with silicon rubber sealing rings and grommets that provide full protection against water ingress in both the mating area and wire crimping area. The connector uses a 2.5 mm pitch and includes a front cap with large chamfers to prevent grommet damage during insertion. This design makes it ideal for harsh environments requiring robust waterproof connectivity in automotive electrical systems, marine equipment, and outdoor industrial applications.