The 3480BP39A0140 from Johanson Technology is a Band Pass Filter with Frequency 3.41 to 3.55 GHz, Bandwidth 140 MHz, Insertion Loss 2.5 dB, Rejection 30 dB, Power 0.5 W. Tags: Surface Mount, Ceramic, Ceramic Filter. More details for 3480BP39A0140 can be seen below.