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                                                                                                         BC856A/B-BC857A/B/C
                                                                                                         BC858A/B/C-BC859B/C

General Purpose Transistor                                     COLLECTOR
                                                                   3                             3             MARKING DIAGRAM
                                                                                                                      3
PNP Silicon                                               1
                                                                                   1
                                                        BASE                             2
                                                                                        SOT-23                                XX = Device
                                                                                                                              Code (See
                                                                     2                                          1           2 Table Below)
                                                                  EMITTER

Maximum Ratings ( TA=25 C unless otherwise noted)
                    Rating                                     Symbol                                     Value                         Unit
 Collector-Emitter Voltage        BC856                         VCEO                                       -65
                                  BC857                                                                    -45                           V
                            BC858,BC859                                                                    -30
 Collector-Base Voltage           BC856                                                                     -80
                                  BC857                           VCBO                                      -50                          V
                            BC858,BC859                                                                     -30
 Emitter-Base VOltage                                             VEBO                                     -5.0                       V
 Collector Current-Continuous                                      IC                                      -100                      mAdc
Thermal Characteristics
                 Characteristics                               Symbol                                Max                          Unit
 Total Device Dissipation FR-5 Board (1)                           PD
  (Note 1.)TA=25 C                                                                                       225                       mW
   Derate above 25 C                                                                                     1.8                      mW/ C
 Thermal Resistance, Junction to Ambient                          R JA                                   556                       C/W
 Total Device Dissipation Alumina
  Substrate, (Note 2.) TA=25 C                                    PD                                     300                       mW
  Derate above 25 C                                                                                      2.4                      mW/ C
 Thermal Resistance, Junction to Ambient                        R JA                                     417                       C/W
 Junction and Storage, Temperature                             TJ,Tstg                       -55 to +150                            C
1.F R -5=1.0 x 0.75 x 0.062 in. 2.Alumina=0.4 x 0.3 x 0.024 in. 99.5% alumina.
Electrical Characteristics            (TA=25 C Unless Otherwise noted)
                              Characteristics                        Symbol                      Min                Typ   Max           Unit

Off Characteristics
 Collector-Emitter Breakdown Voltage        BC856 Series                     V(BR)CEO            -65                -       -            V
 (IC= -10mA)                                BC857 Series                                         -45                -       -
                                            BC858, BC859 Series                                  -30                -       -
 Collector-Emitter Breakdown Voltage        BC856 Series                     V(BR)CES            -80                -       -            V
 (IC=-10 

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