YL Series Circular Electrical Connectors

YL Series Circular Electrical Connectors

When you need a reliable connection solution for critical military, aerospace and industrial applications, the YL Series Circular Electrical Connector stands out as the industry’s most balanced choice. Our advanced connector series combines hyperboloid contact stability with versatile structural design, making it perfect for avionics, radar systems, shipboard equipment, and harsh-environment control systems. With a proven track record in meeting strict military standards (GJB598A / MIL-C-26482), Xi'an Mingxi Taida Information Technology Co., Ltd. delivers proven solutions that meet the most demanding requirements for space-critical, vibration-resistant, and long-term reliable equipment installations.

Product Descriptions from the Supplier

As an authorized partner of JONHON, MXTD is proud to present the YL Series Circular Electrical Connectors—the versatile interconnection solution engineered to meet the rigorous demands of military, aerospace, and industrial applications. Designed in strict adherence to GJB598A (MIL-C-26482) Series I, this series offers unmatched flexibility with 10 shell sizes and contact specifications, making it the ideal choice for systems requiring both signal and power transmission.

Crafted for reliability, the YL Series features a robust bayonet lock mechanism for rapid, secure mating and hyperboloid socket contacts that ensure stable electrical connections even under extreme vibration (196m/s²) and shock (980m/s²). With a wide operating temperature range of -55°C to 125°C and exceptional sealing performance (2m water immersion for 0.5h), these connectors deliver unwavering performance in harsh environments from desert heat to coastal salt spray.

Backed by MXTD’s deep expertise in military-grade interconnection systems and global supply chain, we provide end-to-end solutions for the YL Series, including custom contact configurations and cable assemblies. Every unit undergoes rigorous environmental and electrical testing to ensure compliance with Q/21EJ203, making it the trusted choice for your critical connection needs.

Description

The YL Series Circular Electrical Connectors are precision-engineered components designed to deliver reliable performance in the most demanding operating environments. Developed in accordance with GJB598A (MIL-C-26482) Series I, this series offers exceptional versatility with 06–24 shell sizes and 10 contact specifications, supporting rated currents from 3A to 40A for both signal and power transmission.

At its core, the YL Series utilizes a bayonet connection system that enables quick, quarter-turn mating—ideal for applications where speed and security are paramount, such as field-deployed military equipment or aerospace avionics. The contact system features high-reliability hyperboloid socket contacts for crimp termination, a design that ensures low contact resistance, high current-carrying capacity, and resistance to fretting corrosion even under severe mechanical stress.

Engineered for environmental resilience, the YL Series boasts exceptional sealing capabilities: sockets maintain airtight integrity under 1.01×10⁵Pa pressure for 1 minute, and mated connectors withstand 2m water immersion for 0.5 hours. With a wide operating temperature range (-55°C to 125°C), up to 1000 hours of salt spray resistance (stainless steel), and insulation resistance exceeding 5000 MΩ, these connectors thrive in extreme conditions from arctic cold to desert heat, and from coastal saltwater to industrial humidity.

Available with multiple plating options (nickel, chrome, passivation, stainless steel) and tail configurations (straight, right-angle), the YL Series offers unparalleled flexibility for integration into military vehicles, aerospace systems, industrial machinery, and test equipment.

Specifications

Core Standards

• Military Standard: GJB598A (MIL-C-26482) Series I
• Enterprise Standard: Q/21EJ203

Applications

The YGD Series marine corrosion-resistant electrical connectors are designed for a wide range of demanding applications, including:

• Military & Aerospace: Avionics, radar systems, missile guidance, field communication equipment
• Industrial Automation: Factory control systems, robotics, heavy machinery, process monitoring
• Test & Measurement: Data acquisition systems, signal analyzers, laboratory test equipment
• Marine Engineering: Shipboard navigation, communication systems, coastal monitoring equipment
• Transportation: Vehicle electronics, railway signaling, aerospace ground support equipment

Functionality

• Bayonet Quick Connection: Quarter-turn mating for fast, secure engagement in field and industrial settings.
• Hyperboloid Contact Technology: Ensures stable, low-resistance connections under extreme vibration and shock.
• Environmental Sealing: Waterproof (2m/0.5h) and airtight performance protects against moisture and contaminants.
• Wide Voltage Compatibility: Supports 300V, 400V, 600V, and 1000V rated voltage classes for diverse systems.
• Flexible Termination: Solder and PCB mount options adapt to different equipment and wiring requirements.
• Corrosion Resistance: Multiple plating options (stainless steel, passivation) for long-term use in salt spray environments.

Key Features

• Military-Grade Compliance: Built to GJB598A (MIL-C-26482) Series I, meeting the strictest performance standards.
• Hyperboloid Contact Reliability: Delivers superior contact stability and resistance to fretting corrosion.
• Exceptional Sealing: 2m waterproof rating and airtight socket design for harsh environment reliability.
• Wide Environmental Tolerance: Operates from -55°C to 125°C with up to 1000h salt spray resistance for extreme conditions.
• Low Contact Resistance: Minimal power loss with contact resistance as low as 1.0mΩ (10# contact).
• Versatile Configuration: 10 shell sizes, contact specifications, and tail options for flexible system design.

Custom Design

MXTD offers tailored customization for the YL Series to meet your unique application needs:

• Contact Configuration: Custom combinations of signal and power contacts (3A–40A) for hybrid systems.
• Housing Modifications: Custom shell materials (stainless steel), plating options, or color coding for system identification.
• Sealing Upgrades: Fluororubber sealing components for enhanced chemical resistance or extreme temperature tolerance.
• Cable Assembly: Pre-assembled cable connectors with custom wire gauges, lengths, and shielding configurations.
• Mounting Adaptations: Custom flange mounts, bulkhead fittings, or right-angle tails for non-standard installation scenarios.
• Tailor-Made Terminations: Custom solder cup dimensions or crimp termination options for specialized wiring systems.

Why Choose MXTD

• Authorized JONHON Distributor: 100% genuine YL Series connectors, fully compliant with GJB598A and Q/21EJ203 standards.
• Military Application Expertise: Our engineering team specializes in defense and aerospace interconnection solutions, providing precise product matching.
• Rigorous Qualification Testing: Every batch undergoes vibration, waterproof, and electrical performance testing to ensure reliability.
• Customization Speed: Rapid response to custom design requests for tight-deadline military and industrial projects.
• Global Logistics Network: Efficient delivery to defense contractors, manufacturers, and test facilities worldwide.
• Lifetime Technical Support: 24/7 assistance for installation, maintenance, and troubleshooting of critical systems.

FAQ

Q: What military standard does the YL Series comply with?

A: The YL Series strictly complies with GJB598A (MIL-C-26482) Series I and enterprise standard Q/21EJ203.

Q: What is the maximum current rating of the YL Series?

A: The 10# contact size supports a rated current of 40A, making it ideal for power transmission applications.

Q: What is the waterproof performance of the YL Series?

A: After mating, the connectors can withstand 2 meters of water immersion for 0.5 hours without water ingress.

Q: What is the mechanical life of these connectors?

A: The YL Series is rated for 500 mating cycles (≥7-core) and 2000 mating cycles (<7-core), meeting the durability requirements of military and industrial use.

Q: What termination options are available for the YL Series?

A: The series supports both solder and printed circuit board termination, with hyperboloid socket contacts for crimp termination.

Q: Can I get custom cable assemblies for the YL Series?A: Yes, MXTD provides fully customized cable assemblies tailored to your specific length, wire gauge, and shielding requirements.

Q: What plating options are available for the YL Series?

​​​​​​​A: The series offers shielded and unshielded plating options, including nickel, chrome, passivation, and stainless steel for enhanced corrosion resistance.

Contact Us

Ready to discuss your connector requirements? Our technical team is here to help you find the perfect solution for your application.

When you choose our YL Series Circular Electrical Connectors, you're investing in proven technology backed by comprehensive support. Contact us today to learn how we can enhance your next project.

Email: manager02@mxtdinfo.com