The 4CX-902.5-X25Q from Reactel is a Band Pass Filter with Frequency 890 to 915 MHz, Bandwidth 25 MHz, Center Frequency 902.5 MHz, Insertion Loss 1.2 dB @ CF, 2.2 dB @ Bandedges, Rejection 15 dB @ 935 - 930 MHz. Tags: Surface Mount, Ceramic, Ceramic Filter. More details for 4CX-902.5-X25Q can be seen below.