1
Power Transistors
2SB928, 2SB928A
Silicon PNP epitaxial planar type
For power amplification
For TV vartical deflection output
Complementary to 2SD1250 and 2SD1250A
s
Features
q
High collector to emitter V
CEO
q
High collector power dissipation P
C
q
N type package enabling direct soldering of the radiating fin to
the printed circuit board, etc. of small electronic equipment.
s
Absolute Maximum Ratings
(T
C
=25C)
Parameter
Collector to base voltage
Collector to
emitter voltage
Emitter to base voltage
Peak collector current
Collector current
Collector power
dissipation
Junction temperature
Storage temperature
Symbol
V
CBO
V
CEO
V
EBO
I
CP
I
C
P
C
T
j
T
stg
Ratings
200
150
180
6
3
2
30
1.3
150
55 to +150
Unit
V
V
V
A
A
W
C
C
2SB928
2SB928A
T
C
=25
C
Ta=25
C
s
Electrical Characteristics
(T
C
=25C)
Parameter
Collector cutoff current
Emitter cutoff current
Collector to base voltage
Collector to emitter
voltage
Emitter to base voltage
Forward current transfer ratio
Base to emitter voltage
Collector to emitter saturation voltage
Transition frequency
Symbol
I
CBO
I
EBO
V
CBO
V
CEO
V
EBO
h
FE1
*
h
FE2
V
BE
V
CE(sat)
f
T
Conditions
V
CB
= 200V, I
E
= 0
V
EB
= 4V, I
C
= 0
I
C
= 500
A, I
E
= 0
I
C
= 5mA, I
B
= 0
I
E
= 500
A, I
C
= 0
V
CE
= 10V, I
C
= 150mA
V
CE
= 10V, I
C
= 400mA
V
CE
= 10V, I
C
= 400mA
I
C
= 500mA, I
B
= 50mA
V
CE
= 10V, I
C
= 0.5A, f = 10MHz
min
200
150
180
6
60
50
typ
30
max
50
50
240
1
1
Unit
A
A
V
V
V
V
V
MHz
2SB928
2SB928A
*
h
FE1
Rank classification
Rank
Q
P
h
FE1
60 to 140
100 to 240
Note: Ordering can be made by the common rank (PQ rank h
FE1
= 60 to 240) in the rank classification.
Unit: mm
1:Base
2:Collector
3:Emitter
N Type Package
8.5
0.2
6.0
0.5
10.0
0.3
10.5min.
2.0
1.5
0.1
1.5max.
0.8
0.1
5.08
0.5
2.54
0.3
1.1max.
0.5max.
1.0
0.1
3.4
0.3
2
1
3
Unit: mm
8.5
0.2
4.4
0.5
2.0
10.0
0.3
14.7
0.5
4.4
0.5
6.0
0.3
3.4
0.3
2.54
0.3
5.08
0.5
1.0
0.1
0.8
0.1
1.5
+0
0.4
3.0
+0.4
0.2
0 to 0.4
1.1 max.
R0.5
R0.5
1
2
3
1:Base
2:Collector
3:Emitter
N Type Package (DS)
2
Power Transistors
2SB928, 2SB928A
P
C
-- Ta
I
C
-- V
CE
I
C
-- V
BE
V
CE(sat)
-- I
C
h
FE
-- I
C
f
T
-- I
C
Area of safe operation (ASO)
R
th(t)
-- t
0
160
40
120
80
140
20
100
60
0
40
30
10
20
(1) T
C
=Ta
(2) With a 50
50
2mm
Al heat sink
(3) Without heat sink
(P
C
=1.3W)
(1)
(2)
(3)
Ambient temperature Ta (C)
Collector power dissipation P
C
(W
)
0
12
10
8
2
6
4
0
600
500
400
300
200
100
T
C
=25C
4.0mA
3.5mA
3.0mA
2.5mA
2.0mA
1.5mA
1.0mA
0.5mA
I
B
=4.5mA
Collector to emitter voltage V
CE
(V)
Collector current I
C
(A
)
0
1.0
0.8
0.2
0.6
0.4
0
2.0
1.6
1.2
0.8
0.4
V
CE
=10V
25C
25C
T
C
=100C
Base to emitter voltage V
BE
(V)
Collector current I
C
(A
)
0.01
3
1
0.1
0.03
0.3
0.01
0.03
0.1
0.3
1
3
10
I
C
/I
B
=10
T
C
=100C
25C
25C
Collector current I
C
(A)
Collector to emitter saturation voltage V
CE(sat)
(V
)
0.01
0.1
1
10
0.03
0.3
3
1
3
10
30
100
300
1000
3000
10000
V
CE
=10V
T
C
=100C
25C
25C
Collector current I
C
(A)
Forward current transfer ratio h
FE
0.01
0.1
1
10
0.03
0.3
3
1
3
10
30
100
300
1000
3000
10000
V
CE
=10V
f=10MHz
T
C
=25C
Collector current I
C
(A)
Transition frequency f
T
(MHz
)
1
10
100
1000
3
30
300
0.01
10
1
0.1
0.03
0.3
3
Non repetitive pulse
T
C
=25C
1ms
5ms
2SB928A
2SB928
I
CP
I
C
t=0.5ms
300ms
Collector to emitter voltage V
CE
(V)
Collector current I
C
(A
)
10
4
10
10
3
10
1
10
2
1
10
3
10
2
10
4
10
2
10
1
1
10
10
3
10
2
(1)
(2)
(1) Without heat sink
(2) With a 50
50
2mm Al heat sink
Time t (s)
Thermal resistance R
th
(t)
(C/W
)
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