The JCBP-43 from Mini Circuits is a Band Pass Filter with Frequency 26 to 60 MHz, Bandwidth 34 MHz, Center Frequency 43 MHz, Insertion Loss 0.3 dB, Rejection 20 dB @ 12.5 and 130 MHz. Tags: Surface Mount, Ceramic, Ceramic Filter. More details for JCBP-43 can be seen below.