The AM2250B1078 from Anatech Electronics is a Band Pass Filter with Frequency 2.15 to 2.35 GHz, Bandwidth 200 MHz, Center Frequency 2250 MHz, Rejection 30 to 40 dB, Upper Rejection 30 dB. Tags: Surface Mount, Ceramic, Ceramic Filter. More details for AM2250B1078 can be seen below.