75Ω coaxial connector optimal
for 4K/8K high-definition image transmission

12G-SDI Compatible BNC75 Series

Complies with 12G-SDI standards, which enable
long-distance transmission of
4K-equivalent signals over a single coaxial cable

Complies with 12G-SDI standards, which enablelong-distance transmission of 4K-equivalent signals over a single coaxial cable

Optimal for 4K (12G-SDI) device connection

By applying design, analysis, and manufacturing technologies such as millimeter-wave connectors, high-speed multi-position connectors, etc., we have greatly revised the BNC75, H.FL75 series design and manufacturing methods for 4K (12 Gbps) equivalent high-speed signals, to achieve 12G-SDI high-speed signals.

Now 4K (12 Gbps) equivalent signals can be transferred
with a single coaxial cable.

Cooperating with chip, board, and cable manufacturers has enabled us to develop a connector that is optimal for 12G-SDI transmission channels. We will provide information on demand required for handling high-speed transmission connectors (10 GHz or more) such as ideal board layout, analysis data, mounting methods, and cable assembly methods.

Now 4K (12 Gbps) equivalent signals can be transferred with a single coaxial cable.

Features of BNC75 series 12G-SDI compatible Plug

Contact structure provides stable characteristics,
even for high-frequency bands

Design considers higher harmonics to achieve low reflection that is suitable for 12G-SDI transmission. It also inhibits rattling between plug and receptacle after mating, and by changing from conventional surface contact to a multi-point contact structure, high-frequency band fluctuations which often occur at 3 GHz or higher are significantly reduced.

Backlash-eliminating fit
and multi-point contact

Backlash-eliminating fit and multi-point contact

Reduce high-frequency

Reduce high-frequency disturbance

Favorable reflectance

Favorable reflectance

Compatibility with a variety of cables

Each type of cable can be selected depending on use, such as the thick 5.5 C-UHD fastening cable for approx. 80 to 100 m transmission for connection between stations, outside broadcast vans, etc. or the 3.3 C-FW for approx. 30 m transmission, great for optimal resistance to bending in the studio or at the filming location.

Insertion loss by cable

Insertion loss by cable

Transmission distance rough standard

Transmission distance rough standard

Production variations / wiring tools

Product name (CL) Compatible cable Specialized tool (external crimping dies) *
For fixed: 5.5C-UHDG
Outer diameter Φ7.7 mm
Specialized dies:
For mobility: 5.5C-UHDGW
Outer diameter Φ7.7 mm
For fixed: 3.3C-UHDG
Outer diameter Φ7.7 mm
Specialized dies:
For movable: 3.3C-UHDW
Outer diameter Φ5.5 mm

* The external crimp tool unit (MIL-DTL-M22520/5-01), central crimp terminal unit (MIL-DTL-M22520/7-01), and central crimp terminal positioner (BNC75-12G/CRMD (CL902-3264-0) are common tools. Please note that we do not sell MIL-standard crimp tool units, dies, cable size cutters, terminal processing machines, etc. Please use commercially-available products suitable to your working environment.

For wiring steps, please contact us through “Contact Us” on our website or "Our Sales Representatives." For product specifications, refer to drawing for reference on the product page.

Features of BNC75 Series 12G-SDI-compatible Receptacles

Internal structure, mounting design,
and board pattern were changed to support 12G-SDI

Characteristics enabling 12G-SDI transmission at high frequencies were considered, with a tapered structure used for right angle types, and SMT adopted for center conductor connection (DIP type is also available.) The internal structure was optimized. In addition, to prevent an uneven amount of solder while mounting, nickel barrier processing is used for the right-angle type center conductor.

High impedance matching
Nickel barrier suppresses inconsistencies in solder

Compact, lightweight

Usage with an outside broadcast van, etc. was considered to meet a minimal pitch between connectors of 16 mm, and the right angle type's weight was scaled down to 5.3 g. Size will differ depending on the connector, so please check the variation table and 2D, 3D drawings for details.

Product variations

Product name (CL) Connector shape Minimum mounting pitch (mm) Center conductor mounting method
* All outer conductor leads are DIP.
weight (g)
Right angle 16 DIP 5.3
Right angle 16 SMT 9.4
Right angle 17 SMT 13.6
Right angle 17.5 ※1 SMT 14.6
Straight 16 DIP 9.7

* 1. Product compatible with 16.5 mm pitch nut type to be added.

Drawings for checking 2D/3D design and touchstone data for circuit simulation can be downloaded from each product page.

Board layout

The layout must be optimized to meet connector and board conditions for 12G-SDI signal transmission. Feel free to contact us about board design reference materials, to check board layouts, etc.

Board layout

Applications (Usage Examples)