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                                                                                                                                 UMF28N
Transistors


Power management (dual transistors)
UMF28N

2SA1774 and DTC124XE are housed independently in a UMT package.



 Application                                            External dimensions (Unit : mm)
Power management circuit
                                                         UMF28N




                                                                                                              0.65
                                                                                                  (3)
                                                                                   (4)




                                                                                                                     1.3
                                                                                                                           2.0
                                                                    0.2
  Features




                                                                                                        (2)
                                                                                 (5)
                                                                                   (6)
1) Power switching circuit in a single package.




                                                                                                              0.65
                                                                                                  (1)
                                                                                          1.25
2) Mounting cost and area can be cut in half.
                                                                                            2.1




                                                                        0.15




                                                                                                                     0.9
                                                                                                              0.7
                                                                                         0to0.1
                                                                         0.1Min.
 Structure
Silicon epitaxial planar transistor                                                                Each lead has same dimensions
                                                         ROHM : UMT6
                                                         EIAJ : SC-88          Abbreviated symbol : F28

 Equivalent circuit

       (3)                    (2)   (1)




   DTr2                               Tr1
                   R1

             R2

       (4)              (5)         (6)
                  R1=22k
                  R2=47k




 Packaging specifications
          Type              UMF28N
        Package              UMT6
         Marking              F28
          Code                TR
Basic ordering unit (pieces) 3000




                                                                                                                                     1/4
                                                                                                                              UMF28N
Transistors

  Absolute maximum ratings (Ta=25

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