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2STR1215 Low voltage fast-switching NPN power transistor Datasheet - production data Features Very low collector-emitter saturation voltage 3 High current gain characteristic Fast switching speed Miniature SOT-23 plastic package for surface 2 mounting circuits 1 Applications SOT-23 LED Battery charger Voltage and relay drive Figure 1. Internal schematic diagram Voltage regulation Description The 2STR1215 is a NPN transistor manufactured using new PB-HCD (Power Bipolar High Current Density) technology. The resulting transistor shows exceptional high gain performances coupled with very low saturation voltage. Table 1. device summary Order code Marking Package Packaging 2STR1215 1215 SOT-23 Tape and reel May 2016 DocID12090 Rev 5 1/11 This is information on a product in full production. www.st.com Contents 2STR1215