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                                                                                                 2SD1781K
                                                                                       SOT-23-3L Transistor(NPN)

                                                                                             SOT-23-3L
                                      1. BASE
                                      2. EMITTER                                          2.92
                                                                                                  0.35
                                      3. COLLECTOR                                                                               1.17




Features
                                                                           2.80                                 1.60


       Low voltage
       High saturation current capability
                                                                                                                         0.15
                                                                                          1.90



MAXIMUM RATINGS (TA=25 unless otherwise noted)                                    Dimensions in inches and (millimeters)

       Symbol                                   Parameter                                        Value                     Units
VCBO                Collector-Base Voltage                                                         40                           V

VCEO                Collector-Emitter Voltage                                                      32                           V
VEBO                Emitter-Base Voltage                                                            5                           V
IC                  Collector Current -Continuous                                                  0.8                          A
PC                  Collector Power Dissipation                                                    0.2                          W
TJ                  Junction Temperature                                                          150                           
Tstg                Storage Temperature                                                          -55-150                        

ELECTRICAL CHARACTERISTICS(Tamb=25 unless otherwise specified)

             Parameter                          Symbol        Test   conditions                      MIN           TYP    MAX           UNIT

 Collector-base breakdown voltage               V(BR)CBO    IC=50A,IE=0                                  40                              V

 Collector-emitter breakdown voltage            V(BR)CEO    IC=1mA,IB=0                                  32                              V

 Emitter-base breakdown voltage                 V(BR)EBO    IE=50A,IC=0                                  5                               V

 Collector cut-off current                        ICBO      VCB=20V,IE=0                                                   0.5          A

 Emitter cut-off current                          IEBO      VEB=4V,IC=0                                                    0.5          A

 DC current gain                                 hFE(1)     VCE=3V,IC=100mA                          120                   390

 Collector-emitter saturation voltage           VCE(sat)    IC=500mA,IB=50mA                                               0.4           V

 Transition frequency                              fT       VCE=5V,IC=50mA,f=100MHz                                150                  MHz

 Collector output capacitance                     Cob       VCB=10V,IE=0,f=1MHz                                    10                    pF



 CLASSIFICATION OF           hFE(1)
 Rank                                                   Q                                                      R

 Range                                           120-270                                                     180-390

 Marking                                           AFQ                                                        AFR
                              2SD1781K
                          SOT-23-3L Transistor(NPN)


Typical Characteristics
    2SD1781K
SOT-23-3L Transistor(NPN)

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