EMI Absorber WAM

EMI Absorber WAM

30, 50, 70, 100

Absorbs EMI and RFI noise rather than reflecting. Non-conductive therefore safe to use in an assembly on PCBs.


  • Non-conductive, wave absorbing, reduces EMI and RF noise
  • High performance & permeability, polymer filled with magnetic particles eliminating High Frequency EMI.
  • Thicknesses range from 0.1 - 1.0mm in sheet form, with or without PSA
  • Accurate conversion into gaskets.
  • Non-conductive, can be used safely in PCB applications.


Electronic shielding of wiring & high-end electronic products like:

  • Position directly onto noisy RF IC’s or attach to specific PCB areas.
  • Fix inside Board Level Shields or enclosures to improve shielding.
  • Wrap around cables or position on Flexible Flat Cables and Flexible Printed Circuits to reduce EMI noise.

Product Data...

Properties Test Method Unit EMI Absorber WAM-30, 50, 70, 100
Absorber Sheet - - Polymer
Tensile Strength ATM-D412 Mpa 4.6
Relative µ’ 1MHz - 30, 50, 70, 100
Operating Temp EM344 ◦C -25 to 85
Surface Resistance Typical 1.6x105
Gravity (±0.5) ASTM-D792 g/cc 3.05
Apply Frequency Typical GHz 0.5 to 8.0
Dielectric Strength (DC) 5mm (0.1mA/1mA Leakage) V 400
Thermal Conductivity ASTM-D5470 W/mk 0.6
Adhesion Strength ASTM-D1000 Kgf/inch >1.0
Thickness (±10%) ASTM-D374 mm 0.1 to 1.0
Flame Retardant UL94 - V0
ROHS - - ROHS Compliance


  1. Customised shapes are available;
  2. The above performance data is tested in an environment of 70% humidity, temperature 25°C
  3. This data is intended for reference purposes only. It is recommended that the material is tested to fully evaluate its performance ensuring it is fit for purpose