Power Transistors
2SB951, 2SB951A
Silicon PNP epitaxial planar type Darlington
For midium-speed switching
Complementary to 2SD1277 and 2SD1277A
0.7鹵0.1
10.0鹵0.2
5.5鹵0.2
2.7鹵0.2
4.2鹵0.2
4.2鹵0.2
Unit: mm
7.5鹵0.2
s
Features
q
q
q
4.0
High foward current transfer ratio h
FE
High-speed switching
Full-pack package which can be installed to the heat sink with
one screw
(T
C
=25藲C)
Ratings
鈥?0
鈥?0
鈥?0
鈥?0
鈥?
鈥?2
鈥?
45
2
150
鈥?5 to +150
Unit
V
16.7鹵0.3
蠁3.1鹵0.1
1.4鹵0.1
1.3鹵0.2
14.0鹵0.5
Solder Dip
s
Absolute Maximum Ratings
Parameter
Collector to
base voltage
Collector to
2SB951
2SB951A
2SB951
Symbol
V
CBO
V
CEO
V
EBO
I
CP
I
C
P
C
T
j
T
stg
0.5
+0.2
鈥?.1
0.8鹵0.1
2.54鹵0.25
5.08鹵0.5
emitter voltage 2SB951A
Emitter to base voltage
Peak collector current
Collector current
Collector power T
C
=25擄C
dissipation
Ta=25擄C
Junction temperature
Storage temperature
V
V
A
A
W
B
1
2
1:Base
2:Collector
3:Emitter
TO鈥?20 Full Pack Package(a)
3
Internal Connection
C
藲C
藲C
E
s
Electrical Characteristics
Parameter
Collector cutoff
current
Emitter cutoff current
Collector to emitter
voltage
2SB951
2SB951A
2SB951
2SB951A
(T
C
=25藲C)
Symbol
I
CBO
I
EBO
V
CEO
h
FE1*
h
FE2
V
CE(sat)
V
BE(sat)
f
T
t
on
t
stg
t
f
Conditions
V
CB
= 鈥?0V, I
E
= 0
V
CB
= 鈥?0V, I
E
= 0
V
EB
= 鈥?V, I
C
= 0
I
C
= 鈥?0mA, I
B
= 0
V
CE
= 鈥?V, I
C
= 鈥?A
V
CE
= 鈥?V, I
C
= 鈥?A
I
C
= 鈥?A, I
B
= 鈥?mA
I
C
= 鈥?A, I
B
= 鈥?mA
V
CE
= 鈥?0V, I
C
= 鈥?A, f = 1MHz
I
C
= 鈥?A, I
B1
= 鈥?mA, I
B2
= 8mA,
V
CC
= 鈥?0V
20
0.5
2
1
鈥?0
鈥?0
2000
500
鈥?.5
鈥?
V
V
MHz
碌s
碌s
碌s
10000
min
typ
max
鈥?00
鈥?00
鈥?
Unit
碌A(chǔ)
mA
V
Forward current transfer ratio
Collector to emitter saturation voltage
Base to emitter saturation voltage
Transition frequency
Turn-on time
Storage time
Fall time
*
h
FE1
Rank classification
Q
P
Rank
h
FE1
2000 to 5000 4000 to 10000
1
1
2
3
