A new series of RoHS compliant MIL-STD-1553B bus couplers was designed for use in mil/aero and ground vehicle applications. The Restriction of Hazardous Substances (RoHS) directive restricts the use of six hazardous materials in the manufacture of various types of electronic and electrical equipment. RoHS was initially adopted by the European Union in 2003 and has now become a mandatory requirement for many military and civilian applications involving electronic products. To address the demand for RoHS compliant products, the company now stocks a wide range of MIL-STD-1553B box style bus couplers with one through eight stud options and models with single, double, or no bus jacks. Additionally, these robust bus couplers feature a transformer ratio of 1.41:1 with stub resistor values of 59 ohm, 2W, 1%.