The ZCBP6-505-S+ from Mini Circuits is a Band Pass Filter with Frequency 490 to 520 MHz, Center Frequency 505 MHz, Insertion Loss 1.23 to 1.7 dB, Upper Rejection 20 to 74 dB, Lower Rejection 20 to 79 dB. Tags: Module with Connectors, Ceramic Filter. More details for ZCBP6-505-S+ can be seen below.