MIL-Spec-Approved Circular Connectors and Commercial Equivalents

By AJ Born | November 15, 2022

This week’s Product Roundup highlights MIL-Spec-approved circular connectors and commercial equivalents from leading suppliers.

Mil-Spec-Approved Circular Connectors and Commercial Equivalents

TacCom connectors from IPCPower Connector (PCI), a Trexon company, is a leader in the design and development of standard and custom TacCom connectors. PCI offers an extensive range of products for the defense industry. Power Connector is a Defense Logistics Agency QPL manufacturer of MIL-DTL-55181 and MIL-DTL-55116 connectors which complement its other product offerings of custom filtered and un-filtered power connectors and audio connectors, adapters, dust covers and interconnect components for hand-held and mounted radio systems. PCI’s commitment to excellence and innovation is demonstrated by its top-notch equipment, stringent quality standards, and skillful, dedicated employees.

Smiths Interconnect MIL-DTL-38999 Filter ConnectorsSmiths Interconnect MIL-DTL-38999 Filter Connectors are designed to meet or exceed all applicable requirements of Series I, II, III, and IV. Filter connectors are intermateable and interchangeable with the standard non-filtered connectors. They address EMI/RFI filtering, and transient protection to meet demanding HIRF and Lightning requirements. Smiths Interconnect’s design strategy for filter connectors is based on extensive experience with filter capacitor arrays and diodes and the understanding of the extreme environmental conditions that can cause a filter or diode to fail or cause a system dysfunction. This design strategy is built on the foundation of system reliability and the efficient use of available space. The capacitor array is protected from thermally induced mechanical stresses by a barrier located between the capacitor array surface and the epoxy filled region. This barrier isolates the epoxy and the ceramic array and prevents damage to the array from the expansion influence of the epoxy.

The JK06 Series from JAEThe JK06 Series from JAE is a waterproof circular connector developed for railway vehicles and related electronic equipment. The JK06 Series is designed in accordance with VG95234 specifications (contact arrangement is compatible with MIL-DTL-5015) and is also compliant with NFF61-030 (French standard for rolling stock) and EN50467 (European standard for railway applications, rolling stock). The JK06 Series is also ideally suited for use in other industrial equipment applications that require a rugged and secure connection.

Amphenol Pcd’s MW Series Power Connectors from CDM ElectronicsCDM Electronics supplies Amphenol Pcd’s MW Series Power Connectors. Qualified to MIL-C-55181 (QPL designation MIL-DTL-55181), MW Series Power Connectors are polarized and have a center lock coupling screw to ensure they can withstand high shock and vibration. They are typically used for the interconnection of power and control circuit electric equipment in military and harsh environments, such as soldier communication and ground vehicles.

Powell Electronics supplies Amphenol Aerospace 38999 PCB ConnectorsPowell Electronics supplies Amphenol Aerospace 38999 PCB Connectors. Tri-Start MIL-DTL-38999 Series III Connectors offer the highest performance capabilities for both general duty and severe environment applications. Meeting or exceeding MIL-DTL-38999 Series III requirements, Amphenol’s Tri-Start connector is available in aluminum, stainless steel, or composite with several finish options. Solid metal-to-metal coupling, grounding fingers provide superior EMI shielding. The 100% scoop-proof connector minimizes potential contact damage. Operates under severe high temperature vibration, through 200 °C with firewall capability. This self-locking, quick coupling connector eliminates lockwiring and is stainless steel qualified to BACC63DB and BACC63DC specifications.

D38999 Series III housing and standard insertsSV Microwave offers DC to 40 GHz high frequency size 8, 12, and 16 coaxial contacts for the D38999 Series III housing and standard inserts. These contacts allow any application to continue to use the D38999 connector and be able to expand its use to include the microwave transmission lines. They offer superior electrical performance, high frequency capability, blindmate advantage, and maintenance of an accurate phase length when mated. These contacts use standard interfaces based on MIL-STD-348 and can be installed in any MIL-DTL-38999 size 8, 12, or 16 insert. Unique “float mount” technology allows for consistent microwave performance while maintaining tight mechanical tolerances.

Cinch Connectivity’s MS3110 through MS3129Cinch Connectivity’s MS3110 through MS3129 and commercial versions of MIL-DTL-26482 environmentally sealed circular connector are available in threaded and bayonet coupling with solder, crimp, or pc tail contacts. Also available in PW, PWF, and PWC series commercial versions. They meet or exceed the requirements of MIL-C-26482 Series 1 Crimp and Solder and PC tail and are in the U.S. Department of Defense QPL. Shells and hardware are made of high strength aluminum alloys and are available with a variety of plated or anodized finishes. Standard contact termination by crimping; wire stripping automated, by crimping machines, or manually.

ITT Cannon’s CA-Bayonet connectors at PEI genesisPEI-Genesis supplies ITT Cannon’s CA-Bayonet connectors (CA-B / CB), derived from MIL-DTL-5015 standards but use an improved, 3-point reverse-bayonet locking system that is VG95234-approved. With the enhanced coupling system, CA-B / CB connectors offer exceptional shock and vibration resistance for military systems/ground vehicles, heavy equipment, industrial equipment, and rail applications. In addition to over 140 arrangements,12 connector sizes available for 1 to 65 circuits, and diverse accessory options, the CA Bayonet series offers a wide range of plating. From VG-approved Cadmium and black ZnCo to ITT’s RoHS & REACH compliant ZnNi Blue Generation plating (500 hours salt spray resistant), ITT Cannon’s CA Bayonet series is one of the most versatile, high-reliability connector series on the market.

The Fischer UltiMate 80 connectorThe Fischer UltiMate 80 connector is designed to meet Nett Warrior standards and is compatible with other NATO STANAG 4695 and Generic Open Soldier System Reference Architecture (GOSSRA) connectors. It has been engineered to offer ultra-rugged, lightweight, and IP68-sealed connectivity solutions for any harsh environments, especially for soldier modernization programs, and comes in two layouts featuring 6 or 7 signal and power contacts with up to AWG 22. As of October 2022, the connector offers high current up to 10 A. Its enhanced contact alloy allows for higher conductivity, lower heat rise, and optimal performance. Compliant with MIL-STD-810 and MIL-STD-202, the UltiMate 80 offers endurance and environmental and mechanical performance that outperforms by far other suppliers’ similar connectors. In terms of ruggedness, features include high resistance to corrosion (500 hours salt mist), up to 10,000 mating cycles for the plug / 5,000 for the receptacle, random vibration 7.7 Grms, shock resistant (100 G), cable bending resistance (+/-45° for 5000 cycles), temperature (-55 °C to +135 °C), triple key coding. Lightweight: 2,7 g housing material in aluminum. Environmental sealing: connector ingress protection mated and unmated is IP68 2m/24h.

Amphenol's circular connector backshell hardware and dustcaps at HeilindHeilind supplies Amphenol’s circular connector backshell hardware and dustcaps in many different types and styles, designed for optimal performance in harsh and demanding applications. Amphenol backshells are RoHS-compliant and qualified to AS85049, providing strain relief, environmental sealing, and EMI/RFI shielding. They come in aluminum, stainless steel, brass and composite, and are available in three different angular profiles: straight, 45°, and 90°, providing solutions for virtually every application.

JPC’s AMS310 SeriesJPC’s AMS310 Series, a commercial version of Mil-Spec Mil-C-5015, is offered in several configurations. The series is designed for harsh environments and includes reliable screw type connectors that are widely used in Industry 4.0, automation control equipment, ground vehicles, robot arm and controller, CNC machinery, earth-moving equipment, and aerospace. Perfect for enduring high vibration applications, JPC’s AMS310 connectors have a waterproof rating of IP65, come in a durable matte finish, and are RoHS compliant. JPC offers custom cable assemblies for its entire line of circular connectors.

Amphenol Pcd now offers complete line of M28840 circular connectorsAmphenol Pcd now offers a complete line of M28840 circular connectors according to MIL-DTL-28840. These shipboard application connectors are precision-machined, highly reliable, and meet superior mechanical shock performances. These high-density connectors are designed and tested to withstand extreme environmental conditions and demanding applications. Amphenol also offers the full range of backshells to support this connector series.


Learn more about MIL-Spec connectors.

MIL-Spec-Approved Rectangular Connectors Product Roundup

Mini-Mil-Circular Connectors Product Roundup

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AJ Born
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