Eccosorb® JCS

High Loss, Low Density, Flexible, Carbon-loaded,

Silicone Rubber Sheet

Americas: +1.866.928.8181

Europe: +49.(0)8031.2460.0

Asia: +86.755.2714.1166

www.lairdtech.com

FLEXIBLE CARBON-LOADED SILICONE RUBBER SHEET

Eccosorb JCS is a carbon-loaded, silicone rubber sheet. It obtains its microwave properties

via a carbon loading system and is therefore electrically conductive. Eccosorb JCS is

waterproof and has excellent thermal characteristics, tolerating high and low temperatures.

Low out-gassing is assumed, but formal testing has not been completed yet. Material does

not flake or shed. Complex shapes are best cut with a water jet system.

FEATURES AND BENEFITS

MARKETS

SPECIFICATIONS

TYPICAL PROPERTIES

ECCOSORB JCS

Frequency range

6 – 100 GHz

Service Temperature °C (°F)

-70 to 177 (-94 to 350)

Thickness

0.50 mm - 3.18mm (0.020”-0.125’’)

Color

Black

Data for design engineer guidance only. Observed performance varies in application.

Engineers are reminded to test the material in application.

ELECTRICAL PROPERTIES

Eccosorb JCS is a pure dielectric absorber with no magnetic properties (permeability = 1).

The complex permittivity varies with frequency, see graphs below. Attenuation is a figure of

merit for the lossiness of absorbent material and should not be used to directly estimate

insertion loss.

Insertion loss is defined as the reduction in energy between point A and point B caused by

the insertion of a material. In general, insertion loss is a function of the material

electromagnetic parameters and the thickness. JCS can be custom tailored to many

different insertion loss values.

Attenuation (dB/cm)

3 GHz

10 GHz

JCS-3

2

3.5

JCS-5

4.5

9

JCS-7

8

16

JCS-9

10

20