The QWSNFNM0600 from NexTek, LLC. is a RF Surge Protector with Frequency 2.2 to 7.6 GHz, Input Power 500 W, Insertion Loss 0.15 to 0.25 dB, Operating Temperature -40 to 90 Degree C, Operating Voltage 600 V. Tags: Quarter-Wave Shorting Stub (QWS). More details for QWSNFNM0600 can be seen below.