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2sta1837


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                                                                                                                       2STA1837

                                                                                     PNP power bipolar transistor
                                                                                                                                   Preliminary data


Features
    High breakdown voltage VCEO = -230 V
    Complementary to 2STC4793
    High transition frequency, typical fT = 70 MHz

Applications
                                                                                                                               3
    Audio power amplifier                                                                                                  2
                                                                                                                       1
    Drive stage amplifier
                                                                                                          TO-220FP
Description
This device is a PNP transistor manufactured
using new "PB-HDC" (power bipolar high density
current) technology. The resulting transistor                                Figure 1.         Internal schematic diagram
shows good gain linearity behavior.




Table 1.          Device summary
            Order code                               Marking                             Package                           Packaging

             2STA1837                               2STA1837                            TO-220FP                                   Tube



March 2010                                                   Doc ID 15402 Rev 2                                                                 1/7
This is preliminary information on a new product now in development or undergoing evaluation. Details are subject to                      www.st.com   7
change without notice.
Electrical ratings                                                            2STA1837


1           Electrical ratings

            Table 2.    Absolute maximum ratings
               Symbol                  Parameter                   Value       Unit

                VCBO    Collector-base voltage (IE = 0)            -230         V
                VCEO    Collector-emitter voltage (IB = 0)         -230         V
                VEBO    Emitter-base voltage (IC = 0)                -5         V
                 IC     Collector current                            -1         A
                 ICM    Collector peak current                       -2         A
                PTOT    Total dissipation at TC = 25 



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