The A-DSF-25LPIII/Z-UNC is a 25-position male D-sub connector featuring a UNC 4-40 thread interface and insulator support with strain relief. It is constructed with a glass-filled thermoplastic PBT insulator (UL94V-O, black), copper alloy contacts with selective gold plating, and a steel shell with tin and copper plating, delivering robust electrical performance. The connector is rated for 3 A continuous current and 250 VAC at 60 Hz, with a dielectric withstanding voltage of 1000 VAC/ms for 1 minute, contact resistance of 20 mO maximum at 1 A DC, and insulation resistance of 1000 MO at 500 VDC. It accommodates 26 AWG to 28 AWG wire and operates reliably across a temperature range of -55°C to +105°C. This connector is ideal for industrial instrumentation, data acquisition systems, and equipment requiring secure, high-reliability signal transmission in demanding environments.