RF Absorber Silicone Rubber Sheet 4000 series
Product Highlights of Silicone Rubber Absorber 4000
- Soft and elastic in sheet format, thin, suitable for compact design
- Made of insulating material, can achieve a good noise absorption
effect by bonding or pressing it on the metal plate. - Optional PSA, with peeling strength greater than 60Kpa.
Customization is available.
Product application of Silicone Rubber Absorber 4000
- Automotive electronics
- Medical instrument
- Radar
- 5G antenna
- Communication equipment
The SW series absorbers, using silicone rubber as the substrate and mixed with magnetic filler, are specially designed for the reflection loss of high incident plane waves, and are suitable for the frequency range of 2-40GHz. The substrate material features high temperature resistance, oil resistance and flame retardant. The magnetic filler has excellent wave absorption performance when the incident angle is greater than 65°. The product reflectivity measurement refers to GJB2038A-2011.
The SW-series is used to “eliminate” the electromagnetic noise in the closed cavity structure, reduce the “Standing Wave” generated by the microwave resonance in the casing and the “Q” value in the cavity. It can also effectively isolate the bottom plate and the antenna, improve antenna gain. The SW series offers a solution for electromagnetic shielding in the 2-40GHz range by combining with other EMI materials.
Technical Overview & Compliance
The Silicone Rubber Absorber 4000 series represents our most advanced grade of microwave-absorbing material. It features a high-load density of magnetic fillers within a medical-grade silicone matrix, specifically tuned to eliminate parasitic oscillations and “ghosting” in sensitive radar and satellite communication systems. With its superior flexibility and wide operating temperature range, it excels in sealing complex enclosures where standard materials fail.
To ensure this high-performance grade meets the rigorous safety requirements of modern electronics, it is fully certified to the UL 94V-0 Flammability Standard. This ensures that the Silicone Rubber Absorber 4000 provides not only world-class EMI suppression but also critical fire safety and self-extinguishing properties required for high-wattage power supplies and server environments.
SPECIFICATIONS TABLE
| Material Part numbers | Thickness (mm) | Standard Size (mm) | Target Frequency (GHz) & Attenuation (dB) | Operating Temperature (°C ) | Resistance (Ω) | Color |
| SW4020 | 0.50 | 300 X 300 | 25.6,-11.4 | -55~+155 | 1X10⁹ | grey |
| SW4024 | 0.60 | 40.0,-13.8 | ||||
| SW4028 | 0.70 | 14.6,-24.3 | ||||
| SW4031 | 0.80 | 35.1,-18.8 | ||||
| SW4039 | 1.00 | 12.1,-17.9 | ||||
| SW4040 | 1.00 | 25.3,-15.3 | ||||
| SW4040H | 1.00 | 24.8,-21.8 | ||||
| SW4041 | 1.00 | 29.8,-23.2 | ||||
| SW4043 | 1.10 | 23.8,-27.7 | ||||
| SW4050 | 1.25 | 14.5,-19.3 | ||||
| SW4051 | 1.30 | 14.4,-19.3 | ||||
| SW4058 | 1.50 | 7.4,-27.4 | ||||
| SW4059 | 1.50 | 11.1,-29.4 | ||||
| SW4067 | 1.70 | 11.2,-23.8 | ||||
| SW4079 | 2.00 | 1.5,-14.3 | ||||
| SW4080 | 2.00 | 2.4,-10.3 |
Performance Data
