PMI Model LM-20M1G-20W-SMA is a coaxial limiter with an operating range of 20 MHz to 1.0 GHz. This model has a maximum insertion loss of 2.0 dB at -10 dBm input power with a VSWR of 1.5:1 maximum. This compact unit measures 0.90" x 0.38" square and is outfitted with SMA connectors.