Marking SMD, SMD Codes 2H.

Datasheets FMMTA55, KST55, MMBTA55.
SMD CodePackageDevice NameManufacturerDataDatasheet
2HSOT-23FMMTA55ZetexPNP Silicon Planar Medium Power TransistorDownload datasheet
2HSOT-23KST55FairchildPNP Epitaxial Silicon TransistorDownload datasheet
2HSOT-23MMBTA55GalaxyPNP General Purpose TransistorDownload datasheet