The 12.8-25 from Bel Fuse is a Multi-Tapped Rectifier Power Isolation Transformer that has been designed for powering rectifying circuits. It has a primary voltage of 115 V and a secondary voltage of 6.4 V (series configuration) and 12.8 V (parallel configuration). The transformer delivers an output power of 320 VA. It is a conservatively designed step-down transformer solution that is manufactured using tried and true construction techniques and has an established record of high reliability and efficiency. This RoHS-compliant transformer allows dual center-tapped windings to be connected either in series or parallel configuration, offering design flexibility. It is available in a chassis-mount package that measures 5.25 x 4.25 x 4.37 inches.