Standardized Design Boosts Development of D38999 Circular Connectors for High‑end Interconnection

Standardized Design Promotes Wide Application of D38999 Series Circular Connectors

As performance requirements for interconnection systems of high‑end equipment keep rising, D38999 series circular connectors are widely adopted in industrial and airborne electronics fields with complete standardized systems. Designed in reference to MIL‑DTL‑38999,  ARINC,  and other industry specifications, this series features mature interchange compatibility.

It adopts distinctive insert‑arrangement design. The “shell size‑insert arrangement” code defines quantity, specification, position and spacing of contacts. It flexibly matches power, signal, RF coaxial and fiber‑optic termini for hybrid‑signal transmission. Series III  are built‑in with Scoop‑Proof structure. Extended shell sections align before contact engagement to prevent pin and insulator damage caused by angled mating. Series I and II can realize equivalent protection via customized development.

These connectors support multiple mounting types including panel‑mount and cable‑mount, with complete removal tools and accessories for harsh conditions of high vibration, wide temperature range and corrosion resistance.

Market demand for standard‑compliant high‑reliability interconnect components continues to grow. Domestic manufacturers optimize shell craftsmanship, shielding performance and environmental durability, improving full supporting supply chain to deliver stable alternative circular connector solutions for diverse high‑end equipment.