Circular Connectors and Their Uses

Circular connectors are commonplace components, regularly paired alongside round cabling for the means of interconnecting different system elements. Benefiting high-speed digital, analog, and power system cabling alike, circular connectors find implementation within aerospace, defense, and medical system applications. Depending on the assembly in question and its particular needs, there are a number of common circular connectors and electrical plugs that one may use. To help you find the perfect fit for your particular requirements, we will provide a brief overview of the most common circular connector variations.

CPC and CMC Connectors

Circular plastic connectors (CPC) and circular metal-shell connectors (CMC) are the components that originally encompassed the circular connector category. These connectors often find use in industrial applications for the means of establishing a secure wire connection. With their design and capabilities, CPC and CMC connectors are able to undertake various stressors present in an extreme environment, all while maintaining a robust attachment. Such connectors are typically designed by an OEM with specific shell sizes, threading, and contact arrangements, meaning that other OEMs or designs may be incompatible.

MIL-SPEC Connectors

While some connectors may be built to general industry standards, those that are MIL-SPEC components have been designed and tested to meet rigorous military specifications. Oftentimes, these specifications are put in place to ensure that the cable is capable of surviving more extreme environmental factors and electromagnetic interference. With such capabilities, MIL-SPEC circular connectors may be employed within various military and aerospace applications.

DIN Connectors

DIN, or Deutsches Institut für Normung, is a German national organization focused on standardization. DIN connectors are those that follow the standards established by DIN, and they feature a high frequency, multi-pin design. To help establish connections with lined up pins, DIN connectors have rounded and notched ends that are guarded by a metal skirt. In some instances, certain DIN connectors may be used to interconnect coaxial cable components and other parts.

Micro and Nano Connectors

Micro and nano connectors are designed with compact construction to ensure small size. While micro connectors feature contact pitches of 0.05”, nano connectors exhibit contact pitches of 0.025”. For their contacts, a plated design is present as one or more rows of contacts are placed in a straight or right-angled configuration.

With the various types of circular connectors that are available, it comes down to selecting what you need with gender, terminals, mounting, and other factors in mind. While finding a perfect physical shape is important for establishing a connection, it is also important that the connectors, cables, electrical plugs, and other elements present in a system all have ample protection from present environmental forces. While temperature and moisture can be detrimental to a cable, electromagnetic interference also poses a risk for poor signal quality or transfer capability. As such, shielded cables should be used when electromagnetic interference or similar effects are a concern. After you have narrowed down the exact electrical components that you require for your particular applications, Aerospace Store has you covered with an unrivaled inventory of items ready for purchase.

Aerospace Store is a website owned and operated by ASAP Semiconductor, and we are a trusted distributor of aircraft parts and electronic equipment. As you explore our expansive inventory of items, you may request quotes for your comparisons with ease using our provided form. Once submitted, a dedicated account manager will quickly review and respond to your request in as little as 15 minutes or less. If you have any questions regarding our offered services or are ready to initiate the procurement process, get in contact with one of our representatives through phone or email, and they would be more than happy to assist you however necessary. At Aerospace Store, we are more than just a dependable distributor; we are your strategic sourcing partner for all your operational needs.



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August 2, 2021
June 8, 2021

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