Chomerics has announced CHO-MUTE RF absorber material. Available in a choice of two grades CHO-MUTE can be used to eliminate EMI and EMC problems in a variety of applications such as transmitters, receivers, microcontrollers and microprocessors. The elastomers incorporate a ferrous filled silicone polymer system that gives wide band absorption of up to 20dB between 30MHz and 12GHz for CHO-MUTE 9020, and 25dB between 500MHz and 18Ghz for CHO-MUTE 9000. The material is extremely effective at absorbing both surface currents and free space electromagnetic fields.
Available in sheet form, die-cut or as moulded parts, it can be supplied in thicknesses ranging from 0.25mm to 3.0mm. Both grades have an operating temperature range of –50 to +160 grad celsius and can be supplied with a pressure sensitive adhesive to aid assembly.
