MICROWAVE ABSORBER FOAM 3500 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 is 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 and a hard variant. The type you choose depends on the force you want the foam to be able to withstand, if necessary. MICROWAVE ABSORBER FOAM, SOFT VERSION Standard sheet Temperature specification: - 40°C to +100°C Hardness shore: 40 +/- 20 TYPICAL APPLICATIONS Antenna hats Test boxes PCB shielding/housings Military applications EMI reduction Antenna pattern shaping Radar cross reduction • A soft version which can be easily compressed to 75% is available as die cut or in the form of sheets. The soft microwave absorber sheets are available with thicknesses of 3, 6, and 15mm and with or without PSA. (Pressure-sensitive adhesive). • A hard version which can carry more weight and keeps its shape and position more easily is available with a thickness of 6mm. Other thicknesses are available on request. PRODUCT SPECIFICATIONS Property Tensile strength Elongation strength Compression deflection strength Working temperature range Water absorption 7 days Surface resistivity Technical Data Sheet Microwave absorber products can solve EMI/RFI problems without additional shielding and enable advanced technologies including automotive radar, military, and commercial wireless applications. Used at higher frequencies than traditional shielding and can also be used with other EMI/RFI shields to extend f

» MICROWAVE ABSORBER FOAM 3500 REFLECTION LOSS PART NUMBER EXAMPLES Part number ORDER EXAMPLE Part number Length (mm) Specify the length in mm. Max. 1000mm Thickness 3 : 3 mm thick (soft) 6 : 6 mm thick (soft) 15 : 15 mm thick (soft) 6 : 6 mm thick (hard) 12 : 12 mm thick (hard) Adhesive PSA : With pressure sensitive adhesive NA : No adhesive Technical Data Sheet 3500 : Soft EM absorber foam 3501 : Hard EM absorber foam Jacobus Lipsweg 124, NL-3316 BP Dordrecht, The Netherlands [email protected] hollandshielding.com