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EMB3 / UMB3N / IMB3A
Transistors
General purpose (dual digital transistors)
EMB3 / UMB3N / IMB3A
Features External dimensions (Unit : mm)
1) Two DTA143T chips in a EMT6 or UMT6 or SMT6 EMB3 1.6
package. 1.0
0.5
0.5 0.5
2) Mounting possible with EMT3 or UMT3 or SMT3 (6) (5) (4)
automatic mounting machines.
1.2
1.6
3) Transistor elements are independent, eliminating 1pin mark (1) (2) (3)
0.22 0.13
interference.
Each lead has same dimensions
ROHM : EMT6 Abbreviated symbol : B3
Structure
Dual PNP digital transistor UMB3N
(each with single built in resistor) 2.0
1.3 0.9
The following characteristics apply to both DTr1 and DTr2. 0.65 0.65 0.7
(5)
(6) (4)
1.25
2.1
Equivalent circuit 1pin mark (1)
(2)
(3)
0.1Min.
0.2 0.15
EMB3, UMB3N IMB3A
(3) (2) (1) (4) (5) (6)
R1 R1
ROHM : UMT6 Each lead has same dimensions
DTr1 DTr1
EIAJ : SC-88 Abbreviated symbol : B3
DTr2 DTr2
R1 R1
IMB3A
(4) (5) (6) (3) (2) (1)
2.9
R1=4.7k R1=4.7k 1.1
1.9
0.95 0.95 0.8
(4) (5) (6)
1.6
2.8
Packaging specifications
(3) (2) (1)
Package Taping
0.3Min.
1pin mark
Code T2R TN T110 0.3 0.15
Type Basic ordering unit (pieces) 8000 3000 3000
EMB3 - -
Each lead has same dimensions
UMB3N - - ROHM : SMT6
EIAJ : SC-74 Abbreviated symbol : B3
IMB3N - -
Rev.B 1/2
EMB3 / UMB3N / IMB3A
Transistors
Absolute maximum ratings (Ta = 25