(2 k
鈩?(6
5 0鈩? E
Darlington
s
Absolute maximum ratings
(Ta=25擄C)
Symbol
V
CBO
V
CEO
V
EBO
I
C
I
B
P
C
Tj
T
stg
2SB1257
鈥?0
鈥?0
鈥?
鈥?(
Pulse
鈥?)
鈥?
25(Tc=25擄C)
150
鈥?5 to +150
Unit
V
V
V
A
A
W
擄C
擄C
2SB1257
s
Electrical Characteristics
Symbol
I
CBO
I
EBO
V
(BR)CEO
h
FE
V
CE
(sat)
V
BE
(sat)
f
T
C
OB
Conditions
V
CB
=鈥?0V
V
EB
=鈥?V
I
C
=鈥?0mA
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?2V, I
E
=0.2A
V
CB
=鈥?0V, f=1MHz
鈥?0
max
鈥?0
max
鈥?0
min
2000
min
鈥?.5
max
鈥?
max
150
typ
75
typ
V
V
16.2
B
Equivalent circuit
C
Silicon PNP Epitaxial Planar Transistor
(Complement to type 2SD2014)
Application :
Driver for Solenoid, Relay and Motor and General Purpose
(Ta=25擄C)
2SB1257
Unit
External Dimensions
FM20(TO220F)
0.8
鹵0.2
15.6
鹵0.2
5.5
鹵0.2
3.45
鹵0.2
5.5
酶3.3
鹵0.2
1.6
碌
A
碌
A
V
23.0
鹵0.3
9.5
鹵0.2
a
b
MHz
pF
1.75
2.15
1.05
+0.2
-0.1
5.45
鹵0.1
1.5
4.4
5.45
鹵0.1
1.5
0.65
+0.2
-0.1
3.3
0.8
s
Typical Switching Characteristics (Common Emitter)
V
CC
(V)
鈥?0
R
L
(鈩?
10
I
C
(A)
鈥?
V
BB1
(V)
鈥?0
V
BB2
(V)
5
I
B1
(mA)
鈥?0
I
B2
(mA)
10
t
on
(
碌
s)
0.4typ
t
stg
(
碌
s)
0.8typ
t
f
(
碌
s)
0.6typ
3.35
B
C
E
Weight : Approx 2.0g
a. Type No.
b. Lot No.
I
C
鈥?V
CE
Characteristics
(Typical)
鈥?
3m
m
鈥?.8
V
CE
(sat) 鈥?I
B
Characteristics
(Typical)
C o l l e c to r - E m i t t er S a t ur a t i o n Vo l ta g e V
CE (sat)
( V )
鈥?
I
C
鈥?V
B E
Temperature Characteristics
(Typical)
鈥?
( V
CE
=鈥?2 V )
A
A
I
B
鈥?
C ol l e c t o r C u r r e nt I
C
( A)
=鈥?/div>
2.
鈥? .5 m A
鈥?. 2m A
C o l l ec t or C u r r e n t I
C
( A )
鈥?
鈥?
鈥?.0mA
鈥?
Tem
Temp
ase
鈥? A
鈥?
I
C
= 鈥? A
鈥?A
(Case
鈥?
125藲
鈥?
0
0
鈥?
鈥?
鈥?
鈥?
鈥?
鈥?
鈥?.6
鈥?0 .2
鈥?.5
鈥?
鈥?
鈥?0
鈥?0
0
0
鈥?
B a s e - Em i t t o r Vo l t a g e V
B E
( V)
鈥?0藲C
鈥?
25藲C
(Case
C (C
Temp
鈥?
)
鈥?.8mA
p)
鈥?
)
鈥? 鈥?2 .2
Co l le ct o r -Em i t te r V ol tag e V
C E
(V )
Bas e C ur r en t I
B
( m A)
(V
C E
=鈥?2 V )
8000
5000
D C Cu rr en t Ga i n h
FE
8000
( V
C E
= 鈥?2V)
5000
D C Cu rr en t Ga i n h
FE
Transient Thermal Resistance
胃
j- a
(藲 C/ W )
h
FE
鈥?I
C
Characteristics
(Typical)
Typ
h
F E
鈥?I
C
Temperature Characteristics
(Typical)
胃
j - a
鈥?t Characteristics
5
1000
500
1000
500
12
5藲C
25
藲C
鈥?
100
50
0藲C
100
50
20
鈥?.02
鈥?0. 1
鈥? .5
鈥?
鈥? 鈥?
1
0.7
20
鈥?.02
鈥?0 . 0 5 鈥?0. 1
鈥? .5
鈥?
鈥? 鈥?
1
10
Time t(ms)
10 0
3.0
1 00 0
Col l e ct or C ur r e nt I
C
( A)
C ol l ec t or C ur r e nt I
C
( A)
f
T
鈥?I
E
Characteristics
(Typical)
240
(V
C E
=鈥?1 2 V )
鈥?0
Safe Operating Area
(Single Pulse)
25
Pc 鈥?Ta Derating
Natural Cooling
Silicone Grease
Heatsink: Aluminum
in mm
200
Cu t-o ff Fre q u e n c y f
T
(M H
Z
)
Co llec to r C u r r e n t I
C
( A)
M a xim u m P o we r D i s s i p a t i o n P
C
( W )
鈥?
10
m
DC
1m
s
20
s
Typ
160
W
ith
In
120
鈥?
150x150x2
1 0 0x
1 0
10
0x
fin
ite
he
鈥?.5
2
at
si
nk
80
40
鈥?.1
0
0.05
0.1
0.5
1
4
鈥?0 .0 7
鈥?
Without Heatsink
Natural Cooling
50x50x2
W i t ho u t He a t s i n k
2
0
鈥?
鈥?0
鈥?70
0
25
50
75
1 00
125
150
Em i t t er C urr en t I
E
(A )
C ol l ec t or - Em i tt e r Vol t ag e V
C E
( V )
A m b i en t T e m p e r a t ur e T a ( 藲 C )
38
SANKEN
1
