3M Thermally Conductive Acrylic Interface Pad 5571N is 0.5 mm thick and designated to provide a preferential heat transfer path between heat generating components like integrated circuit chip and heat spreaders as aluminum heat sink.3M Thermally Conductive Acrylic Interface Pad 5571N consists of a highly conformable slightly tacky acrylic elastomeric sheet filled with conductive ceramic particles Standard Lead Time: 45 Calendar Days