zebra strip connectors

YCD/YCS Type Zebra Strip Connectors

YCD type zebra strip connectors are supported by insulating silicone rubber on both sides of the fully conductive layer, which can meet applications with demanding insulation requirements.

At the same time, because the insulation layer is softer than the fully conductive layer, good contact performance can be achieved in practical applications with only a small compressive force.

YCD type conductive rubber connector insulation lining is silicone natural color (transparent), can also be made according to the requirements of white, green and other colors.

The structure of YCS type and YCD type is basically the same, but the insulation liner of YCS type has only one side, while the insulation liner of YCD type is two sides.

  • YCD – double-sided sandwich conductive strip
  • YCS – single-sided sandwich conductive strip
zebra strip connectors

Zebra Strip Connectors Naming Conventions

To ensure that conductive rubber connectors are made correctly, the naming conventions are as follows:

Preload relationship and curve

The superior elasticity of zebra strip connectors can effectively avoid the risk of good contact with components due to aging deformation and accidental drop of structural parts during the use of electronic equipment, but with the deformation of structural parts and the change of compression force, the compression ratio and resistance of conductive rubber connectors will also change, and it is necessary to fully consider when setting structural parts and zebra strip connectors. As follows:

Spline: YCD 10×5× 2.5mm CW0.8
Preload Relationship And Curve​
Relationship between compressive force and compression ratio
Preload Relationship And Curve​
Resistance vs. compression ratio

The calculation of conductive rubber connector resistance can be referenced by the following formula:


R = Resistance value (Ω)
CW = Conductive width (mm)
L = Conductive length (mm)
H = Conductive height (mm)
ρ = volume resistivity (Ω·cm)

The testing process should maintain a compression ratio of >5% to obtain accurate test results.

The calculation of the compressive force of a conductive rubber connector can be calculated by reference to the following formula:


F = Compressive force (g)
D = Compression ratio D = (H-H1) ÷ H
E0 = Fully conductive layer modulus of elasticity 3.5MPa
E1 = Modulus of elasticity of the insulation liner 1.1MPa
H = Conductive rubber connector height (mm)
W = Conductive rubber connector width (mm)
CW = Fully conductive layer width (mm)
W1 = Insulation liner width (mm) W2 = W-W1
L = Conductive rubber connector length (mm)

Structure and electrical performance data

Implementation standard: GB2439, GB/T528

Project Specification values
Material Conductive layer Insulating lining
Conductive silicone rubber Silastic
Routine Low resistance Routine
Hardness(A) 65±5 70±5 30±5
Volume resistivity(Ω·cm) <6 <3 >1012
Tensile strength(mPa) >4 >5 >4
Elongation(%) >100 >150 >300
Tear strength(N/mm) >8 >12 >12
Color Black Transparent/white

Work environment data

Operating temperature Operating humidity(%)25℃ Maximum current used      (mA/mm2
Minimum Maximun
-50 150 85 2.5