MDM-25SL56B is a Micro-D metal shell connector featuring 25 contacts with 0.050" (1.27 mm) contact spacing and solid uninsulated gold-plated copper termination (L56 code, 0.150" length). The connector employs size 24 MICROPIN/MICROSOCKET contacts in an aluminum shell that provides electromagnetic (EMI) and RFI shielding, along with a silicone elastomer compression interfacial seal for moisture and humidity protection between contacts. The shell dimensions are 1.185" (30.10 mm) length (A dimension) and 0.800" (20.32 mm) width (C dimension), with an average weight of 0.118 oz (3.36 gm). This highly reliable, lightweight connector is designed for applications requiring microminiature, high-density contact configurations in demanding environments such as aerospace, military, and industrial systems where environmental sealing and electromagnetic shielding are critical.