
Washer, cylinder and springs 5500
Electrically Conductive rubber products for grounding, contact point, water tight rings or flexible springs.
Standard Nickel-graphite conductive rubber is used for EMI applications. The rubber is made conductive by incorporating small conductive metal particles throughout the material. It can provide an EMI-proof and watertight seal in narrow constructions. But they are also useful for EMP protection, wave-guide applications and against static electricity.
When in need of high deflection and low closure force we make conductive foams. The material will return to almost its original height when released. The foam is covered with a layer of conductive polyurethane to protect it from environmental influences and to prevent burrs when cutting. Its conductivity is excellent in all directions (X, Y, and Z). Conductive foam is fire retardant as well as RoHS compliant.
Technical data
Item | Data |
---|---|
Thickness (mm) | Nickel graphite: 1.0, 1.2, 1.5, 1.7, 2.0, or 3.0 mm Conductive foam: 1, 1.5, 2, 2.2, 3.0, 3.4 or 5 mm |
Color | Grey |
Adhesive strength (gf/25mm) | >1.000 |
Holding strength (sec) | >3.600 |
Surface resistance (Ω/sq) | 0.2 |
Surface resistance (Ω/in) | 1.0 max |
Volume resistance (Ω/sq) | 0.2 |
Top-bottom resistance (Ω/in) | 1.0 max |
RoHS | Compliant |
Fire retardant (cm/min) | Pass |
Benefits
- Any size in a few days
- Custom parts
- Small packing of 10 pieces each
- High temperature up to 220 °C
- Easy to mount
- Water tight constructions
Options
- Available in different thicknesses
- Low compression force
- Rubber with silver particles

Example of the 5500 Vertical ground spring on a PCB

examples of 5500 Electrically conductive rubber

Example of the 5500 Ground spring on a PCB
Stock dimensions
5500-C Cylinder

d1 (mm) Other dimensions on request |
|
2 | 16 |
3 | 18 |
4 | 20 |
5 | 22 |
6 | 24 |
8 | 26 |
10 | 28 |
12 | 30 |
14 | 32 |
Other dimensions on request. Packed in bags of 10 pieces
5500-R Washer/Ring

d1xd2 other thicknesses on request |
|
2 x 5 | 16 x 32 |
3 x 7 | 18 x 36 |
4 x 9 | 20 x 40 |
5 x 10 | 22 x 44 |
6 x 12 | 24 x 48 |
8 x 16 | 26 x 52 |
10 x 20 | 28 x 56 |
12 x 24 | 30 x 60 |
14 x 28 | 32 x 64 |
Other dimensions on request. Packed in bags of 10 pieces
5500-OR Oval-ring

d1 | d2 | L |
2 | 5 | 10-15-20-25-30-35 |
3 | 7 | 15-20-25-30-35-40 |
4 | 9 | 20-25-30-35-40-45 |
Other dimensions on request. Packed in bags of 10 pieces
Ground springs (on request)
Following product example can only be made in Nickel-graphite conductive rubber in 1.0, 1.5, 2.0, and 3.0 mm thickness and can be made in different sizes according to customer drawing. please send us a e-mail with your needs to [email protected].
5500- Grounding Spring

5500 - Vertical Grounding Spring

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