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                                  BUJ103AD
                                  Silicon diffused power transistor
                                  Rev. 01 -- 14 December 2004                                        Product data sheet




1. Product profile

                     1.1 General description
                             High-voltage, high-speed planar-passivated NPN power switching transistor in a SOT428
                             (D-PAK) surface mounted package.

                     1.2 Features
                             s Low thermal resistance                               s Fast switching


                     1.3 Applications
                             s Electronic lighting ballasts                         s DC-to-DC converters
                             s Inverters                                            s Motor control systems


                     1.4 Quick reference data
                             s VCESM  700 V                                         s IC  4 A
                             s Ptot  80 W                                           s hFEsat = 12.5 (typ)


2. Pinning information
Table 1:      Pinning
Pin                   Description                                             Simplified outline         Symbol
1                     base                                                                  mb
                                                                        [1]                                               2
2                     collector
3                     emitter                                                                                     1
mb                    mounting base; connected to collector
                                                                                                                          3
                                                                                            2
                                                                                                                      sym056
                                                                                        1        3
                                                                                  SOT428 (D-PAK)

[1]   It is not possible to make a connection to pin 2 of the SOT428 (D-PAK) package.
Philips Semiconductors                                                                                                                BUJ103AD
                                                                                                                   Silicon diffused power transistor



3. Ordering information
Table 2:          Ordering information
Type number                      Package
                                 Name                 Description                                                                                               Version
BUJ103AD                         D-PAK                plastic single-ended surface mounted package; 3 leads (one lead cropped) SOT428


4. Limiting values
Table 3:   Limiting values
In accordance with the Absolute Maximum Rating System (IEC 60134).
Symbol               Parameter                                               Conditions                                        Min                Max                Unit
VCESM                peak collector-emitter voltage                          VBE = 0 V                                         -                  700                V
VCBO                 collector-base voltage                                  open emitter                                      -                  700                V
VCEO                 collector-emitter voltage                               open base                                         -                  400                V
IC                   collector current (DC)                                                                                    -                  4                  A
ICM                  peak collector current                                                                                    -                  8                  A
IB                   base current (DC)                                                                                         -                  2                  A
IBM                  peak base current                                                                                         -                  4                  A
Ptot                 total power dissipation                                 Tmb  25 

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