12/08/2025
Slim FPC and Micro-Coax Cables for CSI-2 Cameras
While there are countless MIPI CSI-2 camera cables, the most common ones are 15-pin / 1mm pitch or 22-pin / 0.5mm pitch, compatible with Raspberry Pi and NVIDIA Jetson platforms. Kurokesu cameras use the 22-pin / 0.5mm pitch format with all four CSI-2 lanes routed.
The majority of the market is covered by plain FFC (Flexible Flat Cable) types without a ground plane. Custom impedance-matched cables are becoming more popular, but most are still relatively bulky – the cable body is usually as wide as the connector, and often even wider after the fan-out section.
We have released two new cables designed for situations where flexibility, durability, and space constraints are critical – perfect for compact embedded systems, wearable modules, vision sensors in narrow enclosures, inspection tools, or robotic joints. The Slim FPC uses a 4-layer construction with controlled impedance and dedicated ground layers for superior signal integrity, reduced crosstalk, and reliable high-speed transmission in a cable just 4 mm wide. The Micro-coax I-PEX kit, based on the CABLINE®-UA II family, adds excellent shielding, minimal signal loss, and a slim, low-profile form factor that handles constant motion without degrading performance.
Slim FPC cable
687.0812.N20A is a Kurokesu designed, impedance matched, 4-layer FPC (Flexible Printed Circuit) cable. It is built for applications where every millimeter matters – the width after the fan-out from the connector is just 4 mm while maintaining four differential lanes with proper impedance control.
Unlike generic FFC cables, which can be stiff and fussy about how they’re routed, the Slim FPC is ultra-narrow and far easier to work with in confined spaces. At just 4mm wide after the fan-out, it can be guided through narrow gaps, wrapped around board edges, or shaped to follow the contours without adding bulk. This makes it ideal for robot vision systems where the camera must be mounted in tight mechanical assemblies, as well as inspection cameras, wearable vision modules that need to hug curved surfaces, or handheld instruments where every millimeter counts and cable routing options are otherwise limited.
Micro-coax I-PEX cable
If your camera is in constant motion – such as on a gimbal, robotic arm, or other moving assembly – cable durability becomes the top priority. 687.089MC1A addresses this need using the outstanding I-PEX CABLINE®-UA II 20 cm micro-coaxial cable.
While the best option is always to use matching I-PEX connectors on both the camera and host, in reality, very few off-the-shelf cameras have them. Instead, this kit adapts from a standard 22-pin FFC connector to the I-PEX format, giving you the mechanical benefits of micro-coax while keeping compatibility with common hardware.
The kit comes unassembled. Mating is straightforward (though care is advised), while un-mating requires a special tool. See the I-PEX cable 82068-100B-02-D tutorial for proper handling techniques.
Find them in our store
Kurokesu I-PEX CSI-2 cable kits are designed for compact camera systems that need better cable durability, shielding, and routing flexibility than standard FFC cables. They adapt Kurokesu 22-pin, 0.5 mm pitch, 4-lane CSI-2 camera modules to the I-PEX CABLINE-UA II micro coax format, making them especially suitable for moving assemblies such as gimbals, robotic arms, inspection tools, and other space constrained embedded systems. The kit is available as adapter boards only or with optional 20 cm or 30 cm micro coax cable, giving flexibility for different mechanical layouts and integration needs. Selected configuration preview and CAD models Gallery photos show real products and may represent similar configurations. Rendered preview shows exact selected variant and dimensions. Some variants are made to order, photos may not be available for every configuration. CAD models are available on GitHub.
Kurokesu Slim FPC cables are compact impedance controlled flexible printed cables for MIPI CSI-2 camera connections. With a 4 mm width and a 4 layer construction with dedicated ground planes, they are designed for compact assemblies where signal integrity, reduced crosstalk, and predictable routing matter. They use the 22-pin, 0.5 mm pitch format used by Kurokesu CSI-2 camera modules, with all four CSI-2 lanes routed. Compared with standard FFC cables, the slim format is aimed at applications where installation space is limited but a flat flexible interconnect is still preferred over micro coax. This makes them a practical option for embedded vision systems, robotic assemblies, inspection equipment, and other compact high speed imaging setups. Available lengths currently include 10 cm, 20 cm, 30 cm, and 40 cm. Key features 4-layer construction with controlled impedance Dedicated ground planes for reduced crosstalk Width after fan-out: 4 mm Length options: 20cm,30cm, 40cm Compatible with 22-pin / 0.5 mm pitch CSI-2 connectors Flexible and easy routing through constrained spaces Suitable for robotic vision systems, wearable optics, inspection tools, and any embedded implementation where space is limited Technical specifications Number of lanes: 4 differential pairs Connector pitch: 0.5 mm (22-pin format) Cable width (post fan-out): 4mm Available lengths: 10,20,30,40cm Construction: 4 conductive layers + ground planes Crosstalk suppression: Enhanced by ground layers Impedance control: Yes (matched to CSI-2 interface) Applications and use cases This Slim FPC cable is ideal when minimal cross section and flexible routing are required. Typical deployment scenarios include: Vision modules in tight mechanical assemblies Cameras in wearable or curved form factors Inspection systems inside narrow housings Embedded or mobile platforms where routing space is constrained Its narrow width and controlled electrical performance make it a reliable choice for applications demanding both space efficiency and signal fidelity.