The SCHA230240AB from Sangshin is a RF & Microwave Circulator with Frequency 2300 to 2400 MHz, Average Power Forward 175 W, Insertion Loss 0.18 to 0.22 dB, Isolation 22 to 26 dB, Return Loss 22 to 26 dB. Tags: Drop-in Circulator. More details for SCHA230240AB can be seen below.