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bul39d


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                                                                                           BUL39D
                                                                 High voltage fast-switching
                                                                      NPN power transistor

Features
   Integrated antiparallel collector-emitter diode
   High voltage capability
   Low spread of dynamic parameters
   Minimum lot-to-lot spread for reliable operation
   Very high switching speed                                                                   3
                                                                                           2
                                                                                       1
Application                                                                   TO-220
   Electronic transformer for halogen lamp

Description
The device is manufactured using high voltage             Figure 1.   Internal schematic diagram
multi-epitaxial planar technology for high
switching speeds while maintaining the wide
RBSOA. The device is designed for use in
electronic transformer for halogen lamp.




Table 1.       Device summary
   Order code          Marking                        Package                      Packaging

    BUL39D             BUL39D                         TO-220                           Tube




October 2008                                         Rev 5                                              1/11
                                                                                                   www.st.com   11
Contents                                                                                                        BUL39D


Contents

1          Electrical ratings . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3

2          Electrical characteristics . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4
           2.1      Electrical characteristics (curves)                ............................. 5

3          Test circuit . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7

4          Package mechanical data . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8

5          Revision history . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10




2/11
BUL39D                                                        Electrical ratings


1        Electrical ratings

         Table 2.     Absolute maximum rating
          Symbol                            Parameter       Value         Unit

           VCES     Collector-emitter voltage (VBE = 0)      850           V
           VCEO     Collector-emitter voltage (IB = 0)       450           V
           VEBO     Emitter-base voltage (IC= 0)              9            V
            IC      Collector current                         4            A
            ICM     Collector peak current (tP < 5 ms)        8            A
             IB     Base current                              2            A
            IBM     Base peak current (tP < 5 ms)             4            A
            Ptot    Total dissipation at Tc = 25 



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