December 2007 Rev 1 1/11
11
2STF2340
Low voltage fast-switching PNP power transistor
Features
■ Very low collector-emitter saturation voltage
■ High current gain characteristic
■ Fast switching speed
■ SOT-89 plastic package for surface mounting
circuits
Applications
■ LED
■ Motherboard & hard disk drive
■ Mobile equipment
■ Battery charger
■ Voltage regulation
Description
The device in a PNP transistor manufactured
using new “PB-HDC” (Power Bipolar High Density
Current) technology. The resulting transistor
shows exceptional high gain performances
coupled with very low saturation voltage.
The complementary NPN is the 2STF1340.
Figure 1. Internal schematic diagram
SOT-89
Table 1. Device summary
Order code Marking Package Packaging
2STF2340 2340 SOT-89 Tape and reel
ww w.st.com