AMCA31 Surface Mount Chip Antennas Abracon AMCA31 Surface Mount Chip Antennas offer linear polarization in a small 3.2mm x 1.6mm x 1.2mm package. The non-ground mounting type antennas feature 3W maximum power handling and are matched to 50Ω. The components are lead-free and suitable for RoHS-compliant reflow. These Abracon AMCA31 Surface Mount Chip Antennas are an alternative to larger PCB solutions.