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2STR1230 Low voltage fast-switching NPN power transistor 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 Motherboard & hard disk drive Mobile equipment Figure 1. Internal schematic diagram DC-DC converter Voltage regulation Description The device 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. The complementary PNP is the 2STR2230. Table 1. Device summary Order code (1) Marking Package Packing 2STR1230 130 SOT-23 Tape and reel 2STR1230G 130G SOT-23 Tape and reel 1. The letter "G" in the order code suff