The SB4030 from Fairview Microwave is a Bias Tee with Frequency 500 MHz to 40 GHz, Max. Voltage 50 Volts, Max Current 1A, Insertion Loss 1.5 to 1.8 dB, Operating Temperature -40 to 85 Degree C. Tags: Module with Connector. More details for SB4030 can be seen below.