For a particular application I'm making use of the TX22/14/6.4-3C81 ferrite bead. The purpose is to reduce noise of the DC supply voltage, with the supply wire wrapped around the ferrite toroid. These are not available any longer, and a distributor recommended replacing them with the TX22/14/6.4-3C91 ferrite bead, which differs only in material.
How can I determine whether these new beads will work for this application? I've done some research and determined that for other ferrite sizes, the parameter difference between the two materials is negligible (see below), but does this apply to any size ferrite bead?