Transistors with built-in Resistor
B
C
R1(1kΩ
)
R2
(
47kΩ
)
E
UN8231/UN8231A
Silicon NPN epitaxial planer transistor
For switching
Features
■
●
High forward current transfer ratio hFE.
●
Resistor built-in type, allowing do wnsizing of the equipment and
reduction of the number of parts.
●
Available in a type with radial taping.
Absolute Maximum Ratings (Ta=25˚C)
■
Parameter Symbol Ratings Unit
Collector to
base voltage
Collector to
emitter voltage
Peak collector current I
Collector current I
UN8231
V
UN8231A 60
CBO
UN8231
V
UN8231A 50
CEO
CP
C
Total power dissipation PT*1 W
Junction temperature T
Storage temperature T
j
stg
* Printed circuit board: Copper foil area of 1cm2 or more and thickness of
1.7mm for the collector portion.
20
V
20
V
1.5 A
0.7 A
150 ˚C
–55 to +150 ˚C
6.9±0.1
4.00.7 0.8
0.15
0.65 max.
+0.1
0.45
–0.05
2.5±0.5 2.5±0.5
Internal Connection
2.5±0.1
1.05
±0.05 (1.45)
0.21.01.0
–0.05
+0.1
321
0.45
2.5±0.1
1 : Emitter
2 : Collector
3 : Base
MT -2 Type Package
Unit: mm
0.5
4.5±0.114.5±0.5
Electrical Characteristics (Ta=25˚C)
■
Parameter Symbol Conditions min typ max Unit
Collector cutoff current I
Collector cutoff current I
Emitter cutoff current I
UN8231
Collector to base voltage
UN8231A
UN8231
Collector to emitter voltage
UN8231A
V
V
CBO
CEO
EBO
CBO
CEO
VCB = 15V, IE = 0 1 µA
VCE = 15V, IB = 0 10 µA
VEB = 14V, IC = 0 0.5 mA
20
IC = 10µA, IE = 0
60
20
IC = 1mA, IB = 0
50
Forward current transfer ratio hFE*VCE = 10V, IC = 150mA 800 2100
Collector to emitter saturation voltage V
Input resistance R
Resistance ratio R1/R
Transition frequency f
*IC = 500mA, IB = 5mA 0.4 V
CE(sat)
1
2
T
VCB = 10V, IE = –50mA, f = 200MHz
0.7 1 1.3 kΩ
0.016 0.021 0.025
200 MHz
V
V
*Pulse measurement
1
Transistors with built-in Resistor UN8231/UN8231A
PT — Ta IC — V
1.6
1.4
)
W
(
1.2
T
1.0
0.8
0.6
0.4
Total power dissipation P
0.2
0
0 16040 12080
Ambient temperature Ta (˚C
Copper foil area of 1cm2 or
more and thickness of
1.7mm for the collector
portion.
hFE — I
2400
FE
2000
C
VCE=10V
V
CE(sat)
25˚C
— I
Ta=75˚C
C
IC/IB=100
–25˚C
1.2
1.0
)
A
(
0.8
C
0.6
0.4
Collector current I
0.2
CE
Ta=25˚C
IB=1.2mA
1.0mA
0.8mA
0.6mA
0.4mA
0.2mA
100
)
V
(
30
CE(sat)
10
0.3
0.1
0.03
3
1
Collector to emitter saturation voltage V
0
012210486
)
Collector to emitter voltage VCE (V
Cob — V
30
CB
)
0.01
0.01 0.03
Collector current IC (A
0.1 0.3 1 3 10
)
)
pF
(
25
ob
1600
1200
800
400
Forward current transfer ratio h
0
0.01 0.03
Ta=75˚C
25˚C
–25˚C
0.1 0.3 1 3 10
Collector current IC (A
20
15
10
5
Collector output capacitance C
0
0.1 0.3
)
Collector to base voltage VCB (V
1 3 10 30 100
)
2