As notebooks, car-mounted, medical, and industrial imaging equipment continue to trend towards "slimming down" and "speeding up," ultra-fine coaxial connectors have become a key component in high-speed signal transmission solutions. The following are the five mainstream manufacturers widely recognized in the industry.

I-PEX (Japan)
I-PEX is a member of the Japanese Dai-Ichi Seiko Group and is a leading technology provider in the ultra-fine coaxial connector field. Its CABLINE® series (such as CABLINE®-VS, CABLINE®-CA II PLUS) is widely used in products such as laptops, tablets, drones, and high-definition camera systems.
Product Features:
Supports high-speed differential signal transmission (up to 56Gbps and above)
Superior EMI shielding capability;
Adopted a miniaturized structure and mechanical buckle design;
Pitch range: 0.25mm ~ 0.5mm.
Typical Applications: Slim laptops, industrial cameras, high-definition display equipment, 5G terminals.

Hirose (Hirose Electric, Japan)
Hirose is a well-known Japanese connector manufacturer, and its ultra-fine coaxial series (such as DF36, DF80, DF81, FX16) performs excellently in the fields of wireless communication modules, medical equipment, and industrial equipment.
Product Features:
Compact in volume, suitable for high-density wiring design;
High-frequency transmission stability, supporting 32AWG to 50AWG coaxial cables.
Long-lasting insertion and extraction life, strong connection reliability.
Typical applications: wireless modules, medical imaging equipment, portable terminals, drones.

Section 3: KEL (Japan)
KEL focuses on the research and development of high-density and high-speed miniature connectors. Its USL, USLS, TSL, XSLS series ultra-thin coaxial connectors have a high market share in the vehicle camera, industrial camera, and laptop markets.
Product features:
Supports high-speed differential signal transmission with excellent anti-interference performance.
High-density structural design, Pitch coverage 0.25mm~0.5mm.
• Excellent insertion and extraction feel, sturdy mechanical structure.
Typical applications: vehicle-mounted cameras, drones, laptops, industrial vision detection systems.

Four, JAE (Japan Aviation Electronics Industry, Ltd.)
JAE is an important enterprise in the Japanese electronic connector field. Its FI-J, FI-JW, and FI-RE series excel in ultra-thin coaxial cable connection and are commonly used in vehicle entertainment systems, industrial equipment, and thin and light display terminals.
Product Features:
Support high-speed differential signal transmission;
Adopted mechanical buckle structure, with good vibration resistance performance;
Offer a diverse range of Pitch sizes and terminal options.
Typical applications: in-car central control screens, industrial cameras, medical equipment, ultra-high-definition display terminals.

Five, HTK (Nihon Hondo Tsushin Gyo Kabushiki Kaisha)
HTK (Honda Tsushin Kogyo Co., Ltd.) has been focusing on the development of ultra-small high-speed connectors for a long time, with its representative series including LVD, LVC, LVX, etc., widely used in vehicle-mounted, medical, and drone image systems.
Product features:
Supports ultra-high-speed differential signal transmission, with excellent EMI shielding performance.
Pitch can be as small as 0.4mm, meeting the requirements for extreme miniaturization.
Rich in vehicle and medical application cases.
Typical applications: vehicle-mounted cameras, medical endoscope equipment, drone image transmission systems.

In the global ultra-fine coaxial cable connector field, the top five manufacturers, I-PEX, Hirose, KEL, JAE, and HTK, constitute the core supply chain of the high-end market. With their strong research and development capabilities and extensive application experience, they cover a wide range of high-end niche markets from consumer electronics to automotive electronics, medical imaging, and industrial vision, representing the highest level of micro high-speed connector technology.
We have been focusing on the design and customization of high-speed cable harnesses and ultra-thin coaxial cables for a long time, committed to providing stable and reliable high-speed interconnect solutions. If you have any related needs or want to learn more, please contact: Manager Yin.
18913280527 (WeChat same number)。