SDI Cables

SDI Cable

Serial Digital Interface video, whether at standard or high-definition resolutions, requires precisely-made coaxial cable with high impedance stability and low return loss. This was true in the days of 480-line standard-definition video, but it's become even more important as SDI data rates have increased to as high as 12G. Whether you need the full bandwidth for 12G, or something more conventional, we have cable to suit: Belden's best SDI cables, in a variety of sizes.

The Coax: for 12G, or for up to 6G

For excellent impedance stability and performance over long runs, there's nothing to match Belden's line of SDI cables. We carry these in a variety of traditional sizes, ranging from the mini-59 1855A through the RG-6 sized 1694A, and to this range we have recently added Belden's newest 12G cables -- 4855R, 4505R, 4694R, and 4794R. Apart from the jacket lettering, externally these cables look just like the 6G versions, but internally they've been re-engineered for 12G. This has meant going to silver-plated copper center conductors, for improved attenuation; bonded foil, for tighter control of impedance; and reconfigured shield braids to prevent the shield from creating return loss issues.

Which to use? Well, it depends. The 12G cables are costlier, especially in long runs, than their lower-bandwidth equivalents, and so the issue turns mostly upon whether you're using 12G now or expect to do so in the reasonably near future.

Cable Technical Specs:

The Connectors:

Our standard connector for conventional (up to 6G) SDI cables is the Canare crimp BNC (see picture above); on the 12G versions we use the Belden one-piece compression BNC (shown below). We also offer Canare DIN 1.0/2.3 plugs as an option on the Belden 1505A, 4505R, 1855A, 4855R, and 1505F, White Sands right-angle DIN 1.0/2.3 plugs on the 1855A and 4855R, and Amphenol female BNCs on the 1855A 4855R. The Canare DIN plugs are our favorite DINs because they have a spring-loaded retracting collar which makes it particularly easy to be sure that they're solidly engaged in the jack, but also makes it easy to remove them -- simply pulling on the outer shell of the connector retracts the collar, releasing the hold on the jack. The White Sands DIN plugs, with their right-angle configuration, are useful in situations -- as on some camera bodies -- where having the cable emerge straight out from the jack is inconvenient. The female BNC, of course, is convenient if you're coupling a short adapter cable to a longer SDI cable, as in many small camera setups.

Straight DINRight Angle DIN
Female BNCBelden BNC for 12G

We measure, cut and terminate each of these cables in our shop in Seattle, using Canare tooling and the best electronic cable strippers and pneumatic presses, so we know they're done right and tested before they go out. We also offer a simple and easy return policy. If for any reason you're not completely satisfied, just return the cable, undamaged, within 30 days and we'll refund your purchase price in full.


To Order:

Just fill in your cable length in feet in the appropriate form below, select any applicable options, and the price will display to the right. To purchase, click "add to cart."

Belden SDI Cable: RG-6 sized
For up to 6G use 1694A (or 1695A for plenum rating); for up to 12G order 4694R
BNC/BNC only, CMR rated (except 1695A, CMP rated)
Cable Stock Length in feet
(between connectors)
Color Price

Belden 4794R 12G SDI Cable
RG-7 sized, foil/95% braid/foil shield, CMR rated
Available in BNC/BNC only
Length in feet
(between connectors)
Price

Belden 1505F SDI Cable
RG-59 sized, high-flex cable, up to 6G, two 95% coverage braid shields, CM rated
Length in feet
(between connectors)
Connectors Color Price

Belden SDI Cable: RG-59 sized
Belden 1505A, for up to 6G, or 4505R for up to 12G; rated CMR
Cable Stock Length in feet
(between connectors)
Connectors Color Price

Belden SDI Cable: mini-59 sized
Belden 1855A, for up to 6G, or 4855R for up to 12G; CMR rated
Note: 4855R is temporarily out of stock -- available soon.
Cable Stock Length in feet
(between connectors)
Connectors Color Price

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