The S4D2028 from Synergy Microwave Corporation is a Power Divider with Frequency 2 to 2.8 GHz, Insertion Loss 0.5 to 0.8 dB, Isolation 16 to 23 dB, Input Power 5 W, Amplitude Balance ± 0.3 to 0.5 dB. Tags: Surface Mount. More details for S4D2028 can be seen below.