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High-performance connector accessories for demanding applications

Connector accessories for circular connectors

At EMCA, we offer a comprehensive range of high-quality connector accessories engineered to enhance and protect demanding interconnect systems. Our product portfolio—including backshells, protective caps, and dummy receptacles — is trusted in aerospace and other high-reliability sectors. Each accessory plays a complementary role:

  • Backshells provide robust strain relief, superior mechanical protection, and advanced EMI/RFI shielding;
  • Protective caps safeguard unmated connectors from moisture, dust, and impact damage;
  • Dummy receptacles store unused plugs securely, preventing wear, contamination, or accidental damage.

When combined, these solutions create a complete protection system—delivering mechanical integrity, cable longevity, environmental sealing, and electromagnetic interference mitigation—ensuring critical performance and reliability in the harshest environments.

High-performance connector accessories for demanding applications

At EMCA, we offer a comprehensive range of high-quality connector accessories engineered to enhance and protect demanding interconnect systems. Our product portfolio—including backshells, protective caps, and dummy receptacles — is trusted in aerospace and other high-reliability sectors.

Enhance and protect your connector systems

Trusted globally for innovative connectivity solutions, EMCA offers a full suite of essential accessories. Compatible with MIL-DTL (MS), VG, JN, and other leading connector standards, our solutions integrate seamlessly to provide:

  • Superior EMI/RFI shielding;
  • Reliable environmental sealing;
  • Effective strain relief;
  • Optimised cable management.

From aerospace and industrial projects to mission-critical systems in harsh operating conditions, EMCA connector accessories work together to extend connector life, maintain signal integrity, and protect system performance. Explore our comprehensive product categories below.

Trusted globally for innovative connectivity solutions, EMCA offers a full suite of essential accessories. Compatible with MIL-DTL (MS), VG, JN, and other leading connector standards, our solutions integrate seamlessly to provide superior EMI/RFI shielding, reliable environmental sealing, effective strain relief and optimised cable management.

From aerospace and industrial projects to mission-critical systems in harsh operating conditions, EMCA connector accessories work together to extend connector life, maintain signal integrity, and protect system performance. Explore our comprehensive product categories below.

Why choose EMCA for your connector accessories?

  • Proven compliance & precision: Our products are manufactured in our own VG-qualified facility, ensuring peak performance and reliability in critical applications.
  • Advanced plating technologies: Benefit from innovative in-house finishes like 100% RoHS and REACH compliant Black Zinc Nickel, our new Grey Tin-Zinc, and our proprietary Black Hybrid plating for superior durability and environmental compliance.
  • Dedicated customer-centric support: Our German and UK-based teams provide responsive service and tailored solutions, ensuring your specialised needs are met with expert guidance.
  • Specialized connector accessory portfolio: We offer a comprehensive range of backshells, protective caps, dummy receptacles, and related solutions, engineered for seamless integration and optimised performance.
  • Extensive connector compatibility: Our accessories are designed to support a broad range of connector standards and sizes, including MIL-DTL, VG, and custom specifications, ensuring seamless integration across diverse systems and applications.
  • Applications across industries: EMCA connector accessories deliver mechanical protection, EMI/RFI shielding, and environmental sealing for aerospace, industrial, mobile, and high-reliability systems. See typical applications →
  • Fully integrated Quality Control: Our control over every production stage, from design to manufacturing and plating, ensures superior quality, reliability, and consistent performance across all accessories. For quality management and VG certifications visit our Certificates page.

Explore our comprehensive range of connector accessories by category

Typical applications for connector accessories

EMCA’s comprehensive suite of connector accessories provides robust mechanical protection, essential EMI/RFI shielding, and reliable environmental sealing across a wide range of harsh-environment and high-reliability applications. Our products are crucial for ensuring system integrity and performance in diverse industries.
Click to expand to see specific applications   ▶
EMCA’s connector accessories are designed to deliver mechanical protection, EMI/RFI shielding, and environmental sealing in high-performance connector systems. Our products support a wide range of harsh-environment and high-reliability applications, including:
  • MIL-DTL-38999 Series III and MIL-DTL-26482 Series II and other circular connector platforms: Our accessories are designed to seamlessly integrate with and enhance the performance of these critical connector standards, ensuring signal integrity and system longevity.
  • Aerospace harness assemblies: For critical aerospace harness assemblies, our connector accessories are meticulously engineered. Backshells provide essential EMC shielding and rugged strain relief, ensuring signal integrity and protecting against electromagnetic interference in mission-critical systems. Additionally, protective caps offer vital sealing for unmated connectors during storage or flight, while dummy receptacles provide safe, secure storage for unused plugs, preventing damage and ensuring system integrity even in the most demanding airborne environments.
  • Industrial and mobile equipment: EMCA's connector accessories are designed to ensure reliable performance for industrial and mobile equipment operating in exposed or demanding conditions. Protective caps offer superior environmental sealing against dust, liquids, and temperature extremes for inactive ports. Backshells provide robust mechanical protection and strain relief for active connections, while dummy receptacles serve as secure storage for unplugged connectors, all contributing to the durability needed for heavy machinery, outdoor installations, and portable electronic systems.
  • Shielded enclosures and electronic systems. Our connector accessories are vital for fortifying shielded enclosures and sensitive electronic systems that demand superior EMI protection and proper grounding. Backshells play a crucial role in providing comprehensive electromagnetic shielding, diverting interference away from sensitive circuits. Meanwhile, protective caps can offer sealing for unused ports to maintain the enclosure's integrity, and dummy receptacles ensure secure, grounded storage for detached plugs, collectively maintaining system stability and data integrity in environments prone to electrical noise.
  • Connectors subject to vibration, moisture, or electromagnetic interference. Our comprehensive range of connector accessories is specifically developed to fortify connectors against the most common threats to reliability. Backshells provide robust protection from constant vibration, preventing mechanical failure and ensuring stable connections. Protective caps offer superior sealing against moisture ingress for unmated connectors, preventing short circuits and corrosion. And for both active and inactive ports, backshells and specialized caps deliver critical shielding to mitigate the effects of harmful electromagnetic interference (EMI), ensuring uninterrupted performance and longevity in harsh operating conditions.
These accessories, such as backshells, dummy receptacles, and protective caps are critical for maintaining signal integrity, system reliability, and cable longevity in extreme environments.
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