0.5 4.5±0.1
V
Forward current transfer ratio Collector to emitter saturation voltage Input resistance Resistance ratio Transition frequency
1
Transistors with built-in Resistor
PT.
IC
Collector to emitter saturation voltage VCE(sat) (V)
Ta=25˚C IC/IB=100
Total power dissipation PT (W)
Collector current IC (A)
Copper foil area of 1cm2 or more and thi.
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Transistors with built-in Resistor
UN8231/UN8231A
Silicon NPN epitaxial planer transistor
Unit: mm
0.15
For switching
6.9±0.1 0.7 4.0
1.05 2.5±0.1 ±0.05
(1.45) 0.8
0.65 max.
q
0.45–0.05
+0.1
Parameter Collector to base voltage UN8231 UN8231A
Symbol VCBO VCEO ICP IC PT* Tj Tstg
Ratings 20 60 20 50 1.5 0.7 1 150 –55 to +150
Unit V
UN8231 Collector to emitter voltage UN8231A Peak collector current Collector current Total power dissipation Junction temperature Storage temperature
1 : Emitter 2 : Collector 3 : Base MT-2 Type Package
V A A W ˚C ˚C
R1(1kΩ)
Internal Connection
2.5±0.1
s Absolute Maximum Ratings
1
2
3
(Ta=25˚C)
0.45–0.05
+0.1
2.5±0.5
2.5±0.5
C
B
R2 (47kΩ)
* Printed circuit board: Copper foil area of 1cm2 or more and thickness of 1.