The ERZ-LPF-0000-0250-1.3 from ERZIA is a Low Pass RF Filter with Frequency DC to 2.5 GHz, Insertion Loss 0.4 to 1.3 dB, Rejection 30 [email protected] GHz, 60 [email protected] GHz, Return Loss 13.4 to 15 dB. Tags: Module with Connector, Suspended Substrate Filter. More details for ERZ-LPF-0000-0250-1.3 can be seen below.