Positronic Harmo-D (HDC) Standard Density D-Sub Connectors are military-quality connectors with size 20 fixed contacts and mil / aero performance. This series meets the performance requirements of IEC 60807-2, Performance Level 1, and applicable fixed contact connectors are qualified to MIL-DTL-24308. The Harmo-D series utilize precision machined contacts that are fixed within the connector body. The female contact features Positronic’s PosiBand® closed-entry design. Positronic HDC Standard Density D-Sub Connectors are mateable and compatible with all D-subminiature connectors conforming to IEC 60807-2, IEC 60807-3, and MIL-DTL-24308. Harmo-D connectors are designed for use in sheltered, mildly corrosive environments that have a wide range of temperature, pressure, and humidity changes. The series is available in stainless steel with jackscrews and lock tabs.