J20J-XTJDL Series Ultra-High Density Micro-Rectangular Connector | Aerospace & Military-grade Connector

The Guanitron J20J Series represents the pinnacle of miniaturization in micro-rectangular electrical connectors. As the pioneer developer of this series with authorized patents, Guanitron has engineered a solution that offers unparalleled contact density in a lightweight, compact form factor.

The J20J series is designed for mission-critical applications where space and weight are at a premium, without compromising on connection reliability or mechanical strength.

Product Specification

  • Exclusive Patented Technology: Developed first by Guanitron, featuring a unique screw-nut coupling mechanism for soft mating and secure locking.

  • Ultra-High Density: Engineered with a 0.95mm contact pitch and 1.01mm row spacing, significantly reducing the footprint on PCBs and equipment.

  • Optimized Configurations: Available in 10 core arrangements: 9, 15, 21, 25, 31, 37, 51, 66, 74, and 100 pins.

  • Precision Termination: Supports a wire cross-section of 0.07mm², optimized for ultra-fine signal transmission.

Integrated Custom Wire Harness & Cable Assembly

custom wire harness

Beyond premium connectors, Guanitron offers end-to-end custom wire harness assembly services. Our engineering team can pre-terminate your demands with high-spec shielded cables, ensuring optimal signal integrity and reduced installation time for your system.

Frequently Asked Questions

1. Lead Time & Availability
  • What is your typical lead time for orders? For standard stocked items, we usually ship within 2–5 business days. For custom configurations or large-scale production, lead times typically range from 6–8 weeks, depending on material availability and testing requirements.

  • Do you offer expedited shipping for urgent projects? Yes. We understand the critical nature of aerospace and defense projects. Please contact our sales team to discuss “Fast-Track” options for urgent requirements.

We offer flexible MOQ policies. While production runs typically have a minimum, we provide sample orders for R&D and prototyping phases to ensure the product meets your exact specifications.

  • Can you provide customized connector solutions? Absolutely. We specialize in OEM/ODM services. Whether you need specific pin configurations, specialized housing materials, or unique shell sizes, our engineering team can design a solution based on your technical drawings or requirements.

  • Do you offer custom wire harness assembly? Yes, we provide integrated services. We can supply not only the connectors but also complete, tested wire harness assemblies ready for installation in your system.

  • What certifications and standards do your products meet? Our connectors are manufactured to meet or exceed MIL-SPEC standards. We are ISO 9001 certified, and all products undergo 100% electrical and mechanical testing before shipment.

  • What is your warranty policy? We provide a 12-month quality warranty on all products. If any technical issues arise, our engineers will provide remote support or replacement solutions within 24–48 hours.

What shipping methods do you use for international orders? We primarily ship via DHL, FedEx, and UPS for fast, door-to-door delivery (3–5 days to the US/Europe). For bulk orders, we also offer air and sea freight options.