The AM2450B189 from Anatech Electronics is a Band Pass Filter with Frequency 2.4 to 2.5 GHz, Bandwidth 100 MHz, Center Frequency 2450 MHz, Insertion Loss 2 dB, Lower Rejection 40dB @ Fo -500 MHz. Tags: Ceramic, Surface Mount, Ceramic Filter. More details for AM2450B189 can be seen below.
