Quantic PMI Model QSM-LP-1800 is a lowpass filter with a passband frequency from DC to 1.8 GHz with a Max passband insertion loss of 3 dB; -3 dB Cut-Off Frequency is (3 dB) 1.8 GHz Min; Rejection of -40 dBc Min and a maximum passband VSWR of 2.0:1. This model has SMA female, field replaceable connectors in a housing measuring 0.69" x 0.70" x 0.29". Can be used as surface mount or connectorized component.