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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