The TSB1N18F2G45NS001T from TAIYO YUDEN (U.S.A.) Inc is a Band Pass Filter with Frequency 2400 to 2500 MHz, Bandwidth 100 MHz, Center Frequency 2450 MHz, Insertion Loss 1.81 to 2.5 dB, Rejection 7 to 31 dB. Tags: Surface Mount, Ceramic Filter. More details for TSB1N18F2G45NS001T can be seen below.