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2stf2340_2stn2340


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                                                                                          2STF2340
                                                                                          2STN2340

                              Low voltage fast-switching PNP power transistors

Features
    Very low collector-emitter saturation voltage
    High current gain characteristic                                                       4
                                                              4
    Fast switching speed
                                                                                     3                           3
                                                                                 2                           2
Applications                                                                 1                           1

    LED
    Motherboard & hard disk drive                                   SOT-89                     SOT-223

    Mobile equipment
    DC-DC converter

                                                        Figure 1.    Internal schematic diagram
Description
The devices are PNP transistors 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 2STF2340 complementary PNP is the
2STF1340.




Table 1.       Device summary
   Order codes          Marking                     Packages                              Packaging

    2STF2340               2340                      SOT-89                              Tape and reel
    2STN2340            N2340                       SOT-223                              Tape and reel



October 2009                                Doc ID 14222 Rev 2                                                       1/10
                                                                                                             www.st.com     10
Electrical ratings                                                              2STF2340, 2STN2340


1           Electrical ratings

            Table 2.       Absolute maximum rating
                                                                                    Value

             Symbol                             Parameter               2STF2340 2STN2340             Unit

                                                                           SOT-89          SOT-223

               VCES      Collector-emitter voltage (VBE = 0)                         -40               V
               VCEO      Collector-emitter voltage (IB = 0)                          -40               V
               VEBO      Emitter-base voltage (IC = 0)                               -5                V
                IC       Collector current                                           -3                A
               ICM       Collector peak current (tP < 5 ms)                          -6                A
               PTOT      Total dissipation at Tamb = 25 



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