The AT19A-MFN-075-6-GD from Aaren Technology Ltd is a RF Surge Protector with Frequency DC to 5800 MHz, Insertion Loss 0.50 dB, Operating Temperature -40 to 80 Degree C, Surge Current 20 kA, Voltage Level 75 V (Discharge Voltage). Tags: Gas Discharge Tube. More details for AT19A-MFN-075-6-GD can be seen below.