GJB600 Series (MIL-DTL-5015 Series) Circular Bayonet Connector

GJB600 Series (MIL-DTL-5015 Series) Circular Bayonet Connector | Military-Grade High-Power Interconnect

The GJB600 Series, fully intermateable with MIL-DTL-5015 connectors, delivers proven performance in the world’s most demanding defense and industrial applications. Featuring a rugged quick bayonet coupling and silver-plated contacts, these connectors ensure reliable power and signal transmission under extreme vibration, temperature, and environmental stress. With a wide range of shell sizes and contact arrangements, the GJB600 Series offers the flexibility to meet diverse system requirements—from avionics to ground vehicles to shipboard electronics. Manufactured under strict enterprise standard Q/21EJ351, each connector is built for long-term reliability in critical missions.

Description

The GJB600 Series Circular Bayonet Connector is a high-reliability interconnect solution designed to meet the stringent requirements of GJB600, the Chinese military standard equivalent to MIL-DTL-5015. These connectors feature a robust quick bayonet coupling mechanism that provides secure, vibration-proof locking with a simple push and twist—fully engaged in a fraction of a turn, accompanied by audible feedback for positive confirmation. Contacts are precision-machined from copper alloy and silver-plated to ensure low and stable contact resistance, even after hundreds of mating cycles. Termination is via solder cups, a time-tested method that allows for reliable field installation and repair without specialized tooling. Available in a wide range of shell sizes (10SL to 28) and multiple contact arrangements, the GJB600 Series accommodates up to 80A per contact, making it ideal for both power distribution and signal circuits. The cadmium olive drab plating provides excellent corrosion resistance, while the high-strength aluminum alloy shell ensures mechanical ruggedness. With a proven heritage spanning decades in military aircraft, naval vessels, ground vehicles, and industrial equipment, the GJB600 Series delivers unwavering performance in the harshest environments.

Specifications

Applications

• Military & Defense: Ground vehicles, naval vessels, aircraft, and portable equipment requiring reliable cable management.
• Aerospace: Avionics bays, in-flight entertainment, and ground support systems.
• Industrial Automation: Factory floor machinery, robotic arms, and control panels.
• Marine & Offshore: Shipboard electronics, subsea equipment, and offshore platforms.
• Telecommunications: Base stations, antenna systems, and data centers.
• Transportation: Rail, heavy equipment, and commercial vehicles.

Functionality

• Quick Bayonet Coupling: Provides secure, vibration-proof connection with simple push-and-twist action—fully engaged in a fraction of a turn.
• Solder Cup Termination: Reliable, field-serviceable connections suitable for prototyping, maintenance, and applications where crimp tooling is unavailable.
• High-Current Capability: Contact sizes up to 4# support 80A, making these connectors suitable for primary power distribution.
• Multiple Shell Sizes: Available in sizes 10SL, 14S, 16S, 18, 20, 22, 24, and 28 to accommodate various circuit densities.
• Keying Options: Normal (N) and alternate (W, X, Y, Z) key positions prevent mismating in multi-connector installations.
• Contact Options: Choose silver-plated (standard) or gold-plated (optional) contacts based on application requirements.

Key Features

• GJB600 / MIL-DTL-5015 Compliance: Fully meets rigorous military specifications for global interoperability.
• Proven Heritage: Decades of field service in military and industrial applications worldwide.
• Rugged Cadmium Plating: Provides excellent corrosion resistance and conductive mating surface.
• Wide Current Range: From 13A (16#) to 80A (4#) – one connector family covers diverse power needs.
• Solder Termination: Simple, reliable, and field-serviceable without special tooling.
• Broad Shell Size Selection: Accommodates various contact counts and cable diameters.
• Optional Gold Plating: Available for applications requiring enhanced durability and corrosion resistance.

Custom Design

The GJB600 Series platform offers extensive customization to meet specific system requirements:

• Mixed Contact Arrangements: Combine power and signal contacts in a single shell (custom inserts available for volume orders).
• Special Platings: Beyond standard cadmium, we offer electroless nickel, zinc, and other finishes upon request.
• Hermetic Versions: Glass-sealed variants for pressure/vacuum applications (consult factory).
• Cable Assembly Integration: Complete custom harness solutions with connectors pre-wired and overmolded.
• Non-Standard Shell Sizes: Contact our engineering team for availability of special shell configurations.
• Keying Customization: Design unique polarization schemes for complex multi-connector systems.

Why Select MXTD

At MXTD, we are dedicated to providing high-reliability interconnect solutions that meet the world’s most demanding military and industrial standards. Our GJB600 Series connectors are manufactured under strict enterprise standard Q/21EJ351, ensuring consistent quality and performance that meets or exceeds GJB600 requirements. With decades of cumulative experience in circular connector design and manufacturing, we understand the critical nature of connections in defense, aerospace, and industrial applications. Every connector undergoes rigorous testing—from contact resistance verification to dielectric strength validation—before leaving our facility. When you choose MXTD, you're partnering with a team committed to technical excellence, quality assurance, and the long-term success of your mission-critical programs. Whether you need standard catalog items or custom-engineered solutions, we deliver the performance and reliability your applications demand.

FAQ

Q: Is the GJB600 Series interchangeable with MIL-DTL-5015 connectors?
A: Yes. GJB600 is the Chinese military standard equivalent to MIL-DTL-5015, ensuring full interchangeability and functional compatibility.

Q: What termination method does this series use?
A: The GJB600 Series features solder cup termination, providing reliable connections that can be installed or repaired in the field without specialized crimp tooling.

Q: What contact sizes and current ratings are available?
A: Standard contact sizes include 16# (13A), 12# (23A), 8# (46A), and 4# (80A). Other sizes may be available upon request.

Q: What plating options are offered?
A: The standard finish is cadmium olive drab (conductive). Optional platings include electroless nickel, zinc, and gold plating for contacts. Please consult our sales team for availability.

Q: What is the mechanical life of these connectors?
A: The GJB600 Series is rated for a minimum of 500 mating cycles while maintaining specified performance.

Q: Are these connectors suitable for high-vibration environments?
A: Yes. They are tested to withstand vibration from 10-2000Hz at 147m/s² acceleration, making them ideal for aircraft, vehicles, and industrial machinery.

Q: Can I get gold-plated contacts?
A: Yes. Gold-plated contacts (P1 for pins, S1 for sockets) are available as an option for applications requiring enhanced durability and corrosion resistance.

Q: What shell sizes are available?
A: Shell sizes include 10SL, 14S, 16S, 18, 20, 22, 24, and 28, accommodating various contact arrangements and cable diameters.

Q: What is the temperature range?
A: The GJB600 Series operates reliably from -55°C to +125°C.

Q: Are protective covers available?
A: Yes. Protective covers for both plugs and receptacles are available as accessories. Please contact our sales team for specific part numbers.

Contact Us

Ready to power your critical systems with the proven reliability of GJB600 Series connectors? Our technical experts are standing by to discuss your specific application requirements and recommend the optimal configuration—from shell size to contact arrangement and plating.

Whether you need standard units for immediate deployment or custom-designed solutions for specialized programs, we're here to help you achieve your performance objectives.

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

Let us show you how our GJB600 Series circular bayonet connectors can deliver rugged, high-current performance in even the most demanding environments.