In order to achieve interoperability between radio frequency systems, military and industrial applications require standard sizes and types of coaxial connectors. The two main standards for coaxial connectors in the United States are MIL-STD-348 and MIL-PRF-39012. The size of MIL-STD-348 can control the standard interface, while MIL-PRF-39012 defines the detailed specifications, materials, quality consistency, qualification and verification of coaxial connectors. As more and more industries and applications adopt high-reliability (Hi-Rel) coaxial cable assemblies, MIL-PRF-39012 and MIL-STD-348 have become more important in manufacturing and purchasing coaxial cable connectors and adapters. more and more important. High reliability (Hi-Rel) coaxial connectors are suitable for almost all radio frequency equipment and components that require radio frequency transmission line interconnection except for waveguides. These include common components such as amplifiers, transceivers, filters, antennas, mixers, attenuators, combiners/power splitters, couplers, and many other devices and components.
MIL-PRF-39012
In order to maintain quality standards, MIL-PRF-39012 and MIL-DTL-17 mechanical inspection, mechanical inspection, and electrical inspection are involved , So you can compare the two coaxial cables. The standard also requires production facilities and processes to meet quality standards, and the parts and components involved in this specification can be included in the Qualified Product Catalog (QPL). Coaxial connectors and adapters that meet the MIL-PRF-39012 standard are very suitable for a variety of high-reliability (Hi-Rel) applications, including radar, RF instruments and test equipment, transceivers, rugged RF/microwave components, satellite communications Ground equipment, indoor/outdoor antennas, transportation and aviation RF/microwave components.
The materials used for connectors that meet the MIL-PRF-39012 standard are specified in the reference industry standards, see the table below.
A key requirement of MIL-PRF-39012 connectors is that the gold plating layer of the central axis of the qualified connector must reach the standard depth to meet the requirements of bonding quality and surface treatment. The gold-plated layer on the fixed contacts ensures minimal insertion loss and consistent electrical contact with environmental exposure and time.
The connector types specified in MIL-PRF-39012 include:
• BNC
• N
• TNC
• SMA
• SMB
• SMC
_• p0MP SOP
• OSSP
• OSMM
• SSMA
• SC
• QMA
• UMCC
• SSMT
strong MIL-span
TL-strong
0 348 specifies the U.S. standard radio frequency coaxial connector interface. One of the benefits is that MIL-DTL-348 enables the interoperability of coaxial connectors to be realized, creating a high-reliability (Hi-Rel) design and construction for these components了基。 The foundation.MIL-STD-348 includes RF connectors and adapters referenced in other MIL-SPEC documents:
• MIL-DTL-3643
• MIL-DTL-3650
• MIL-STD-3655
• MIL -DTL-25516
• MIL-PRF-31031
• MIL-PRF-39012
• MIL-PRF-49142
• MIL-PRF-55339
• MIL-DTL-83517
References:
http://everyspec.com/MIL-PRF/MIL-PRF-030000-79999/MIL-PRF-39012F_AMENDMENT-3_55804/
http://everyspec.com/MIL-STD/MIL-STD-0300-0499 /MIL-STD-348B_CHG-3_55562/
https://blog.pasternack.com/uncategorized/whats-hype-high-reliability-hi-rel/
https://www.pasternack.com/pages/rf -microwave-and-millimeter-wave-products/mil-dtl-17-high-reliability-rf-cable-assemblies.html
«MIL-DTL-17 Requirements for Hi-Rel/MIL-SPEC Coaxial Cable Assemblies and a Note on RG Coax
Key Manufacturing Process Features of MIL-SPEC Coaxial Cable Assemblies (QPL, Lot Traceability, 100% Testing, COTS) »
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