The 7BR1643-74-CD-SS from Quantic PMI (Planar Monolithics) is a Band Stop Filter with Stopband Frequency 1606 to 1680 MHz, Insertion Loss 0.5 dB, Rejection -30dBc @ 1626.5 to 1660.5MHz, VSWR 2.0:1. Tags: Module with Connectors. More details for 7BR1643-74-CD-SS can be seen below.