Used at higher frequencies than traditional shielding and can also be used with other EMI/RFI shields to extend frequency range
These absorbers can be used at higher frequencies than traditional shielding and can also be used with other EMI/RFI shields to extend frequency range.
The microwave absorbers can be installed easily with Pressure-sensitive Adhesive (PSA), often directly onto high-frequency board-level components, to absorb unwanted radiated and surface-wave EMI/RFI and to meet FCC requirements without shielding.
Our 3500 series Microwave absorber foam is RoHS compliant. It is a coated open-cell foam and used as a microwave absorbing material, especially for applications with frequencies of 1 to 17 GHz. The product acts like a free-space resistor to incoming electromagnetic energy.
The 3500 series Microwave absorber foam is available in a soft (3500) and a hard (3501) variant. The type you choose depends on the force you want the foam to withstand, if necessary.
Microwave absorber products can solve EMI/RFI problems without additional shielding and enable advanced technologies including automotive radar, military, and commercial wireless applications.
Part number examples:
|Standard sheet size:|
or 355×255 mm
|3500/3501-x-x||Foam customized settings|
Max. sheet size 1000×1000 mm
3500 series – Reflection loss
|Density||845||Kg/m3||42 – 48|
|Elongation strength||1798||%||30 – 41|
|Compression deflection strength||844||kPa|
|25%||844||kPa||55 – 75|
|50%||844||kPa||123 – 145|
|Working temperature range||Celcius||-60/+80|
|Thermal conductivity at 0 degrees Celcius||8301||W/mK||0.04|
|Water absorption 7 days||Vol. %||<1|
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