MSB Bridge Rectifiers Rectron MSB Single-Phase Bridge Rectifiers offer a 60A surge overload rating and a 50V to 1000V voltage range. These Glass Passivated devices (GPRC) are offered in a compact MSB package designed for printed circuit board applications, making them ideal for smartphone and tablet applications. These high-current rectifiers are Underwriters Laboratory Flammability Classified 94V-0.