The BM13528 from Bracke Manufacturing is a Limiter with Frequency 2 to 18 GHz, CW Input Power 1 W, CW Input Power 30 dBm, Peak Input Power 53.01 dBm, Peak Input Power 200 W. Tags: Module with Connectors, PIN-Schottky Diode. More details for BM13528 can be seen below.