When you need a reliable connection solution for critical applications, the F Series Micro Circular High-Density Electrical Connectors stands out as the industry's most robust choice. Our advanced connector series combines military-grade sealing with exceptional shock resistance, making it perfect for marine, aerospace, and harsh-environment industrial applications. With our deep expertise in high-performance interconnection systems, MXTD delivers proven solutions that meet the most demanding requirements for waterproof, corrosion-resistant, and vibration-stable equipment installations.
The F Series micro circular high-density electrical connectors from JONHON are engineered for reliable performance in demanding environments. Featuring a robust push-pull latching mechanism, these connectors ensure secure connections while enabling rapid mating and unmating. Their compact form factor and high contact density make them perfect for applications where space is at a premium, without compromising on electrical integrity.
With an IP68-rated housing, these connectors provide superior protection against dust and water immersion, making them suitable for both indoor and outdoor use. The series offers versatile termination options, including solder and printed circuit board (PCB) mount, and is available in both single and double keying to prevent mismating. Available in black or natural chrome plating, the F Series connectors are designed to withstand extreme temperatures, shock, and vibration, ensuring consistent performance in critical applications across military, medical, industrial, and commercial sectors.
The F Series micro circular high-density electrical connectors are precision-engineered components designed to deliver reliable electrical connections in space-constrained and harsh environments. Featuring a straight push-pull latching structure with self-locking functionality, these connectors ensure secure mating while enabling quick and easy installation and removal. The compact design and high contact density make them ideal for applications requiring efficient use of panel space, while the IP68-rated housing provides robust protection against dust and water ingress.
These connectors are available in multiple shell sizes (102, 103, 1031, 104, 105) and offer versatile termination options, including solder and PCB mount. With a choice of single or double keying to prevent mismating, and black or natural chrome plating for corrosion resistance, the F Series connectors are highly customizable to meet specific application requirements. Whether used in military communications, medical equipment, industrial control systems, or test and measurement devices, these connectors provide the durability and performance needed to ensure uninterrupted electrical connectivity.
| Performance Category | Specifications |
| Mechanical Performance | |
| Mechanical Life | 10000 mating cycles |
| Vibration | Frequency: 10–2000 Hz; Acceleration: 147 m/s²; Interruption: ≤ 1 μs |
| Shock | Acceleration: 490 m/s²; Interruption: ≤ 1 μs |
| Environmental Performance | |
| Operating Temperature | -55°C to +200°C |
| Relative Humidity | 95% at 40°C |
| Ingress Protection | Socket meets IP68 rating |
| Salt Spray Resistance | 96 hours |
Military & aerospace: Avionics, communication systems, and radar equipment
Civil electronics: Consumer electronics, instrumentation, and control systems
Medical devices: Diagnostic equipment, patient monitoring, and surgical tools
Test & measurement: Data acquisition systems, signal analyzers, and lab equipment
Audio/video: Professional broadcasting, recording, and live event equipment
Industrial control: Factory automation, robotics, and process control systems
Push-pull latching: Enables quick, secure mating and unmating with self-locking for reliability.
IP68 protection: Ensures dust-tight and water-submersible performance for harsh environments.
Keyed mating: Single or double positioning prevents incorrect connections and damage.
Versatile termination: Supports solder and PCB mount configurations for flexible integration.
High-density design: Maximizes contact count in a compact footprint for space-constrained applications.
Rapid connect/disconnect: Straight push-pull latching with self-locking for secure, efficient connections.
Compact & high-density: Ideal for high-density installation and limited-space environments.
Harsh environment rated: IP68 protection, wide temperature range (-55°C to +200°C), and salt spray resistance (96 hours).
Versatile termination: Solder and PCB mount options for plug and socket configurations.
Error-proof mating: Single or double keying to prevent mismating and ensure correct alignment.
Durable construction: Black or natural chrome plating for corrosion resistance and long service life.
We offer tailored solutions for the F Series connectors to meet your specific application requirements:
Custom contact arrangements: Configure contact size, count, and layout for unique signal and power needs.
Specialized plating: Request alternative plating options for enhanced corrosion resistance or aesthetic requirements.
Modified termination: Develop custom termination styles (e.g., crimp, overmold) to match your assembly process.
Keying customization: Design unique keying patterns to ensure exclusive mating compatibility in complex systems.
Housing modifications: Adapt shell size, mounting style, or material for specialized environmental or mechanical constraints.

At MXTD, we are committed to delivering high-quality, reliable electrical connectors that meet the most demanding industry standards. When you choose our F Series connectors, you benefit from:
Proven performance: Backed by JONHON’s decades of expertise in connector design and manufacturing.
Customization flexibility: Tailored solutions to fit your unique application needs, from contact arrangements to plating options.
Rigorous testing: Each connector undergoes comprehensive testing to ensure compliance with mechanical, environmental, and electrical specifications.
Global support: Dedicated technical and customer support teams to assist with design, integration, and post-sales service.
Supply chain reliability: Consistent, on-time delivery to keep your projects on schedule and minimize downtime.


Q: What is the maximum operating temperature of the F Series connectors?
A: The F Series connectors are rated for operation from -55°C to +200°C, making them suitable for extreme temperature environments.
Q: Are the F Series connectors waterproof?
A: Yes, the socket connectors feature an IP68 rating, providing protection against dust and immersion in water up to specified depths.
Q: Can I mix contact sizes in a single connector?
A: Yes, the F Series supports mixed contact sizes within a single connector, allowing for optimized signal and power distribution.
Q: What termination options are available?
A: The F Series connectors offer solder termination for plugs and both solder and PCB mount termination for sockets.
Q: How do I prevent mismating with the F Series connectors?
A: The connectors are available with single or double keying options, ensuring correct alignment and preventing incorrect connections.
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 F Series Micro Circular High-Density 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
Our customers’ satisfaction speaks for our quality — contact us to experience the same reliable service.