The S4A0809-100T100 from Clear Microwave, Inc is a RF Switch with Frequency 800 to 900 MHz, Insertion Loss 0.7 dB, Isolation 100 dB, Supply Voltage 5 V, Supply Current 240 mA. Tags: Module with Connectors, Solid State. More details for S4A0809-100T100 can be seen below.
