The TEEL1-4002-F7F7 from ETL Systems is a Bias Tee with Frequency 850 MHz to 2.15 GHz, Max. Voltage 48 V, Max Current 0.5 A, Power 37 dBm(5 W), Insertion Loss 0.8 to 1.5 dB. Tags: Module with Connector. More details for TEEL1-4002-F7F7 can be seen below.