The BRF1370-50-CD-TNCFF-LK from Quantic PMI (Planar Monolithics) is a Band Stop Filter with Stopband Frequency 1340 to 1400 MHz, Insertion Loss 1.5 dB, Rejection -50dBc @ 1340 to 1400MHz, Power 10 Watts, VSWR 2.0:1. Tags: Module with Connectors. More details for BRF1370-50-CD-TNCFF-LK can be seen below.