Document
SMD Type
NPN Darlington Transistors
KST50; KST51; KST52
(BST50; BST51; BST52)
Transistors
Features
High current (max. 0.5 A) Low voltage (max. 80 V) Integrated diode and resistor.
SOT-89
4.50+0.1 -0.1
1.80+0.1 -0.1
0.48+0.1 -0.1
0.53+0.1 -0.1
+0.12.50 -0.1
+0.14.00 -0.1
Unit: mm 1.50+0.1
-0.1
0.44+0.1 -0.1
+0.10.80 -0.1
+0.12.60 -0.1
+0.10.40 -0.1
3.00+0.1 -0.1
Absolute Maximum Ratings Ta = 25
Parameter
Symbol
KST50
Collector-base voltage
KST51
VCBO
KST52
KST50
Collector-emitter voltage
KST51
VCEO
KST52
Emitter-base voltage
VEBO
Collector current (DC)
IC
Peak collector current
ICM
base current
IB
Power dissipation Tamb 25 *
PD
Thermal resistance from junction to ambient *
Rth(j-a)
Thermal resistance from junction to solder point
Rth(j-s)
Junction temperature
Tj
Storage temperature
Tstg
* Device mounted on a printed-circuit board, single sided copper, tinplated,
mounting pad for collector 6 cm2.
Rating 60 80 90 45 60 80 5 0.5 1.5 100 1.3 96 1.