sg45DISC Sma SJM-SG45+ Electro Acoustic, Sunburst - The Sma SJM-SG45+ Electro Acoustic, Sunburst combines an all-solid wood construction, a traditional dreadnought body and built-inSG45 Datasheet. Part #: DCR818SG45. Datasheet: 109Kb8P. Manufacturer: Dynex Semiconductor. Description: Phase Control Thyristor. 26 Results.