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                                                                                                      EMB9 / UMB9N / IMB9A
Transistors


General purpose
(dual digital transistors)
EMB9 / UMB9N / IMB9A

  Features                                                                                External dimensions (Unit : mm)
1) Two DTA144Ys in a EMT or UMT or SMT package.
2) Mounting possible with EMT3 or UMT3 or SMT3                                             EMB9
   automatic mounting machines.




                                                                                                                                                      0.5 0.5
                                                                                                                            (4)               (3)




                                                                                                               0.22




                                                                                                                                                       1.0
                                                                                                                                                       1.6
3) Transistor elements are independent, eliminating                                                                         (5)
                                                                                                                            (6)
                                                                                                                                              (2)
                                                                                                                                              (1)
                                                                                                                                       1.2
   interference.                                                                                                                       1.6




                                                                                                               0.13




                                                                                                                                                                0.5
4) Mounting cost and area can be cut in half.

                                                                                                                                               Each lead has same dimensions
                                                                                            ROHM : EMT6
 Structure                                                                                                   Abbreviated symbol : B9
Epitaxial planar type
                                                                                            UMB9N




                                                                                                                                                           0.65
PNP silicon transistor (Built-in resistor type)



                                                                                                                                              (3)
                                                                                                                       (4)




                                                                                                                                                                      1.3
                                                                                                                                                                            2.0
                                                                                                      0.2




                                                                                                                                                    (2)
                                                                                                                  (5)
                                                                                                                        (6)




                                                                                                                                                           0.65
                                                                                                                                              (1)
                                                                                                                                   1.25

The following characteristics apply to both DTr1 and                                                                                   2.1
                                                                                                       0.15




DTr2.
                                                                                                                                                                      0.9
                                                                                                                                                           0.7
                                                                                                                                  0to0.1




                                                                                                         0.1Min.

                                                                                                                                              Each lead has same dimensions

                                                                                            ROHM : UMT6
 Equivalent circuit                                                                         EIAJ : SC-88
                                                                                                             Abbreviated symbol : B9
    EMB9 / UMB9N                             IMB9A
                        (3) (2) (1)                  (4) (5) (6)
                                                       R1 R2
                                                                                             IMB9A
                          R1 R2
                                                                                                                                                          0.95 0.95
                                                                                                                      (6)




                                                               DTr1
                                                                                                                                             (1)




                                  DTr1
                                                                                                      0.3




                                                                                                                                                             2.9
                                                                                                                                                            1.9




                 DTr2                         DTr2
                                                                                                                                             (2)
                                                                                                                      (5)




     R1=10k                                                         R1=10k
                                                                                                                      (4)




                                                                                                                                             (3)




     R2=47k              R2 R1                        R2 R1           R2=47k
                        (4) (5)   (6)                (3) (2)       (1)                                                            1.6

                                                                                                                                  2.8
                                                                                                      0.15




                                                                                                                                                                  1.1
                                                                                                                                                          0.8
                                                                                                                              0to0.1




                                                                                                      0.3to0.6
                                                                                                                                             Each lead has same dimensions

 Absolute maximum ratings (Ta = 25

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