FEATURES ? Multi-line EMI Suppression M-series chip arrays contain four ferrite beads in a single package. This compact design makes the M-series perfect for EMI suppression on multiple-lines. ? High Density Packaging M-series chip arrays have a compact package design that is ideal for high density packaging. ● Multi-frequency Applications M-series chip arrays are available in A-type and A-type chip arrays are designed for lower frequency B-type chip arrays are designed for high frequency applications.