The AB5100S is an EMI absorber. This is a thin sheet of polymer resin with magnetic filler, acrylic pressure sensitive adhesive and release liner. It has enhanced absorption at lower frequencies (below 1GHz).
Backing thickness of 1mm
Low EMI and RF noise in electronic systems
Apply to noisy traces, IC's and reflective surfaces in an enclosure
Good absorbing frequency range from 50MHz to 10GHz?