The SRFBF-1E1B1A-WFB8 from Suntsu Electronics Inc is a Band Pass Filter with Frequency 2400 to 2500 MHz, Bandwidth 100 MHz, Center Frequency 2450 MHz, Insertion Loss 1 to 1.2 dB, Rejection 10 to 25 dB. Tags: Ceramic, Surface Mount, Ceramic Filter. More details for SRFBF-1E1B1A-WFB8 can be seen below.