XC Series Circular Electrical Connector

XC Series Circular Electrical Connector | Military-Grade Multi-Interface Interconnect

The XC Series represents the gold standard in military-grade circular connectors, engineered to deliver unwavering performance across the most demanding defense and aerospace platforms. Featuring advanced hyperboloid wire spring contacts, these connectors ensure millions of reliable mating cycles with minimal insertion force and maximum contact integrity. Whether deployed in fighter jets, naval vessels, or ground combat systems, the XC Series provides the ruggedness, reliability, and versatility required for mission-critical operations where failure is not an option.

Product Descriptions from the Supplier

The XC Series Circular Electrical Connector is a high-reliability interconnect solution designed to meet the stringent requirements of GJB2889 military standards. It features a robust quick bayonet coupling system that provides secure, vibration-proof locking with simple push-and-twist action. 

Description

 At the heart of its reliability lies the hyperboloid wire spring socket technology, which creates multiple contact points for superior electrical performance and mechanical endurance. Available in multiple shell styles, platings, and termination methods, the XC Series offers unparalleled design flexibility for system engineers. From signal circuits to high-current power transmission, these connectors deliver consistent performance under extreme conditions including moisture, salt spray, sand, dust, and fungal growth.

Specifications

Applications

• Aviation & Aerospace: Avionics systems, radar equipment, navigation instruments, and flight control systems.
• Naval & Marine: Shipboard electronics, communication systems, and underwater equipment requiring corrosion resistance.
• Ground Defense Systems: Military vehicles, portable communication devices, and field command centers.
• Industrial: Heavy machinery, robotics, and automation equipment in harsh environments.
• Test & Measurement: High-reliability test systems requiring frequent mating cycles.

Functionality

• Quick Bayonet Coupling: Provides secure, vibration-proof connection with audible click confirmation.
• Hyperboloid Wire Spring Contacts: Ensures smooth insertion/withdrawal forces while maintaining multiple contact points for signal integrity.
• Multiple Termination Options: Supports crimp, solder, and PCB mounting to accommodate various assembly requirements.
• Five-Key Polarization: Enables blind mating in tight spaces while preventing circuit damage from mismating.
• Hermetic Sealing Options: Glass sintered versions provide true hermetic sealing for vacuum or high-pressure applications.

Key Features

• Hyperboloid Contact Technology: Superior to standard stamped contacts, providing lower insertion force, higher contact area, and longer mechanical life.
• Comprehensive Product Line: Includes standard, bulkhead sealed, and glass sintered hermetic versions for diverse application requirements.
• Mixed Contact Configurations: Accommodates multiple contact sizes in a single connector for combined power and signal transmission.
• Multiple Plating Options: Choose from zinc olive drab (military standard), electroless nickel, black anodizing, or stainless steel passivation.
• Proven Military Heritage: Designed and tested to meet rigorous GJB2889 military specifications.

Custom Design

The XC Series platform offers extensive customization capabilities:

• Mixed Contact Arrangements: Combine different contact sizes (φ1.0, φ1.5, φ2.0, φ3.0) in a single shell for power/signal hybrid applications.
• Custom Shell Platings: Specify specialized finishes for unique environmental requirements or color coding.
• Hermetic Configurations: Glass sintered versions available for vacuum chambers, pressure vessels, and high-altitude applications.
• PCB Mount Variants: Customize pin lengths and configurations for direct board mounting.
• Backshell Options: Various strain relief and EMI shielding backshells available.

Why Choose MXTD

At MXTD, we specialize in providing high-reliability interconnect solutions for the world's most demanding applications. Our XC Series connectors are manufactured under strict enterprise standard 21E/103.026.000JT, ensuring consistent quality and performance across every batch. We understand that military and aerospace applications leave no room for error—which is why every connector undergoes rigorous testing before leaving our facility. By choosing MXTD, you're partnering with a supplier committed to technical excellence, regulatory compliance, and the long-term success of your mission-critical programs.

FAQ

Q: What is the difference between standard, bulkhead sealed, and glass sintered versions?
A: Standard versions are suitable for general-purpose applications. Bulkhead sealed versions provide enhanced environmental sealing for panel mounting. Glass sintered versions offer true hermetic sealing with leak rates ≤0.1Pa·cm³/s, ideal for vacuum or high-pressure applications.

Q: Can these connectors be used outdoors in salt spray environments?
A: Yes. For marine or coastal applications, we recommend stainless steel passivated versions (1,000 hours salt spray resistance) or electroless nickel plated versions (96 hours).

Q: What makes hyperboloid contacts better than standard contacts?
A: Hyperboloid contacts create multiple line contact points, resulting in lower contact resistance, higher current capacity, smoother mating forces, and longer mechanical life compared to standard stamped or machined contacts.

Q: Are these connectors suitable for both signal and power applications?
A: Absolutely. With four contact sizes ranging from φ1.0mm (5A) to φ3.0mm (40A), you can configure the same connector series for low-level signals and high-current power transmission.

Q: Do you offer pre-cabled harness assemblies?
A: Yes, we provide complete custom cable assembly services. Contact us with your specific wiring diagrams and environmental requirements.

Contact Us

Ready to equip your mission-critical systems with our XC Series military-grade circular connectors? Our technical experts are standing by to discuss your specific application requirements and recommend the optimal configuration. Whether you need standard units for immediate deployment or custom-designed hermetic solutions for specialized programs, we're here to help you achieve your operational objectives.

Reach out to our team today: manager04@mxtdinfo.com

Let us show you how our XC Series can enhance the reliability and performance of your defense, aerospace, or industrial applications.