The MLFR-0502 from Micro Lambda Wireless, Inc. is a Band Stop Filter with Stopband Frequency 0.5 to 2 GHz, Bandwidth 100 MHz, Insertion Loss 2.0 dB, Power 0.6 W(28 dBm), VSWR 2.0:1. Tags: Module with Connectors. More details for MLFR-0502 can be seen below.