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                                                                                                                         DTB143TK
Transistors

-500mA / -40V Digital transistors
(with built-in resistor)
DTB143TK
  Applications                                                   External dimensions (Unit : mm)
Inverter, Interface, Driver

                                                                                        2.9                       1.1

                                                                                              0.4                 0.8
  Features
1) Built-in bias resistors enable the configuration of an                         (3)

   inverter circuit without connecting external input




                                                                                                      2.8
                                                                                                      1.6
   resistors (see equivalent circuit).
2) The bias resistors consist of thin-film resistors with                         (2)               (1)




                                                                                                                           0.3Min.
                                                                                  0.95 0.95
   complete isolation to allow positive biasing of the input.                                                  0.15
                                                                                        1.9
   They also have the advantage of almost completely
                                                                                                          Each lead has same dimension
   eliminating parasitic effects.
                                                                  ROHM : SMT3                                            (1) Emitter
3) Only the on / off conditions need to be set for                EIAJ : SC-59                                           (2) Base
   operation, making the device design easy.                                       Abbreviated symbol : F93              (3) Collector




  Structure                                                      Equivalent circuit
PNP epitaxial planar silicon transistor
(Resistor built-in type)

                                                                                                              C
 Packaging specifications                                         B
                                                                             R1
               Package               SMT3
               Packaging type       Taping                                                                    E

               Code                  T146                         B : Base
                                                                  C : Collector
               Basic ordering                                     E : Emitter
                                     3000
 Part No.      unit (pieces)
                                                                 R1=4.7k
 DTB143TK




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