The SRFBF-1GIJ5-WFB1 from Suntsu Electronics Inc is a Band Pass Filter with Frequency 2400 to 2500 MHz, Bandwidth 100 MHz, Center Frequency 2450 MHz, Insertion Loss 0.95 to 1.25 dB, Rejection 20 to 32 dB. Tags: Ceramic, Surface Mount, Ceramic Filter. More details for SRFBF-1GIJ5-WFB1 can be seen below.