Download the CFWM455F datasheet PDF.
This datasheet also covers the CFWM455B variant, as both devices belong to the same filters family and are provided as variant models within a single manufacturer datasheet.
FILTERS FOR COMMUNICATIONS EQUIPMENT RESIN MOLDED –HIGHLY SELECTIVE CFUM/CFWM 450/455kHz SERIES
The CFUM and CFWM lines of ceramic filters are miniaturized versions of the CFU/CFWS lines.