FMx Schottky Rectifiers Rectron FMx Schottky Rectifiers are designed with VRRM ranging from 20V to 200V and If ranging from 1A to 3A. These rectifiers incorporate Si technology and SMD/SMT mounting style. The FMx rectifiers feature high reliability and high current capability. These rectifiers operate at a temperature ranging from -55ºC to 150ºC.