This document introduces a series of fast recovery glass rectifier products that are hermetically sealed with voidless-glass construction. They are ideal for high-reliability applications where a failure cannot be tolerated. These products have a rated current of 3.0 amps and working peak reverse voltages from 50 to 600 volts. They feature an internal 'Category I' metallurgical bond and are sealed with voidless-glass construction. In addition, other rectifier products with different current ratings and recovery time requirements are also available.