SMD Type
NPN Darlington Transistors
KST50; KST51; KST52
(BST50; BST51; BST52)
SOT-89
Transistors
Unit: mm
+0.1
1.50
-0.1
Features
High current (max. 0.5 A)
Low voltage (max. 80 V)
Integrated diode and resistor.
+0.1
0.48
-0.1
+0.1
4.50
-0.1
1.80
+0.1
-0.1
+0.1
2.50
-0.1
+0.1
0.53
-0.1
+0.1
4.00
-0.1
+0.1
0.80
-0.1
+0.1
0.44
-0.1
+0.1
2.60
-0.1
+0.1
3.00
-0.1
+0.1
0.40
-0.1
1. Base
2. Collector
3. Emiitter
Absolute Maximum Ratings Ta = 25
Parameter
KST50
Collector-base voltage
KST51
KST52
KST50
Collector-emitter voltage
KST51
KST52
Emitter-base voltage
Collector current (DC)
Peak collector current
base current
Power dissipation T
amb
25
*
V
EBO
I
C
I
CM
I
B
P
D
R
th(j-a)
R
th(j-s)
T
j
T
stg
V
CEO
V
CBO
Symbol
Rating
60
80
90
45
60
80
5
0.5
1.5
100
1.3
96
16
150
-65 to +150
Unit
V
V
V
V
V
V
V
A
A
mA
W
K/W
K/W
Thermal resistance from junction to ambient *
Thermal resistance from junction to solder point
Junction temperature
Storage temperature
* Device mounted on a printed-circuit board, single sided copper, tinplated,
mounting pad for collector 6 cm
2
.
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