RTC-4543SB:B3 ROHSEpson Electronics America (Timing Prods) Also known as: Epson America, Cmpnt Sales Grp, Epson Electronics America, Quartz Div., Toyocom/Epson Description: IC RTC CLK/CALENDAR SER 18-SOP Auth QOH 0 | Ind QOH 0 Add to Part Lists Create New List Get Inventory Alert