The BRF17D6G-20M-CD-1 from Quantic PMI (Planar Monolithics) is a Band Stop Filter with Stopband Frequency 17590 to 17610 MHz, Insertion Loss 5 dB, Rejection -40dBc @ 17.59 to 17.61GHz, VSWR 2.0:1. Tags: Module with Connectors. More details for BRF17D6G-20M-CD-1 can be seen below.