D38999 RF Socket Contacts

SV Microwave D38999 RF Socket Contacts from Amphenol Military & Aerospace deliver high‑frequency coaxial performance in MIL‑DTL‑38999 Series II connectors. These socket contacts enable precise 50 Ω transmission through compact circular shells used across military and aerospace platforms where space, weight, and performance are critical.

Design Overview

The contacts support SMPM (Size 12) and SMPS (Size 16) interfaces, each designed for push‑on, blind‑mate coupling. Compared to Series I or III versions, their reduced body length fits the lower‑profile Series II shell pattern while maintaining controlled impedance and low VSWR through the full microwave band.

Key Technical Attributes

• Compliant with MIL‑DTL‑38999 Series II socket geometry (D38999/2M)
• Available as SMPM (Size 12, ~40 GHz) and SMPS (Size 16, ~65 GHz) contact types
• Supports 0.047 in and 0.085 in coax cables
• 50 Ω impedance design with low‑VSWR performance
• Ruggedized construction for vibration and thermal stress tolerance
• Compatible with existing D38999 insert arrangements for hybrid signal / RF integration

Application and Integration

Engineers integrate these socket contacts to route coaxial signals through Series II or 2M‑class circular connectors without sacrificing electrical integrity. Common uses include radar modules, electronic warfare front‑ends, avionics data links, and high‑density communication systems where blind‑mate interfaces simplify maintenance and installation.

Engineering Considerations

• Select SMPM (Size 12) variants for mid‑band microwave channels up to ~40 GHz
• Choose SMPS (Size 16) for higher‑frequency requirements to ~65 GHz
• Combine with Amphenol D38999 Series II shells for mixed‑signal and microwave contact layouts
• Consult AMAO technical resources for guidance on insert arrangements and contact retention tools

By maintaining dimensional interchangeability with standard D38999 hardware, SV Microwave socket contacts provide a direct path to add microwave transmission capability within existing circular connector frameworks used across military and aerospace systems.