Marking SMD, SMD Codes 1R.

Datasheets FMMT5089, KST5089, MMBT5089.
SMD CodePackageDevice NameManufacturerDataDatasheet
1RSOT-23FMMT5089ZetexNPN transistorDownload datasheet
1RSOT-23KST5089FairchildNPN transistorDownload datasheet
1RSOT-23MMBT5089FairchildNPN transistorDownload datasheet