Quantic PMI Model LM-10M12G-20-10W-SFF is a high-power limiter operating in the frequency range of 0.01 to 12 GHz with 10 W of CW power handling (40 dBm) and 100 W peak. This compact housing measures 1.0" x 0.68" x 0.35" and is fitted with SMA female connectors.  https://www.quanticpmi.com/product-details/lm-10m12g-20-10w-sff