... Resistance:50OHM(4-400 OHM available Material:BeO,ALN,AL2O3 Resistor Tolerance:5%/2% ROHS,SGS Flange Mount TerminationsSpecifications(Standard ... Resistance):50Ω(4Ω-400Ω available)(Substrate Material):BeO,AlN,Al2O3 ... the customers' requirement, such as Resistance and Configuration. ) Flange Mount Terminations