137
Darlington
2SD1785
I
C
V
C E
Characteristics (Typical)
h
F E
I
C
Characteristics (Typical)
j - a
t
Characteristics
I
C
V
B E
Temperature
Characteristics (Typical)
P c T a Derating
Safe Operating Area (Single Pulse)
f
T
I
E
Characteristics (Typical)
0 . 4
2
1
B a s e - E m i t t o r V o l t a g e V
B E
( V )
Collector Current I
C
(A)
( V
C E
= 2 V )
0 . 5
1
5
1
1 0
1 0 0
1 0 0 0
T i m e t ( m s )
Transient Thermal Resistance
j-a
(C/W)
3 0
2 0
1 0
2
0
0
2 5
5 0
7 5
1 0 0
1 2 5
1 5 0
A m b i e n t T e m p e r a t u r e T a ( C )
Maximum Power Dissipation P
C
(W)
With Infinite heatsink
Without Heatsink
0.05
0 . 1
1
0 . 5
8
5
0
5 0
1 2 0
1 0 0
Cut-off Frequency f
T
(MH
Z
)
( V
C E
= 1 2 V )
E m i t t e r C u r r e n t I
E
( A )
T y p
0
0
2
4
8
6
2
6
4
C o l l e c t o r - E m i t t e r V o l t a g e V
C E
( V )
Collector Current I
C
(A)
0 . 7 m
A
1 . 5 m
A
1 m A
2 m A
3mA
5mA
10mA
20mA
0 . 5 m
A
0 . 4 m
A
I
B
= 0 . 3 m A
0
6
8
4
2
125C (Case Temp)
25C (Case Temp)
30C (Case Temp)
0 . 0 3
0 . 1
1
5
1 0
1 0 0
5 0 0
1000
10000
5000
C o l l e c t o r C u r r e n t I
C
( A )
DC Current Gain h
FE
( V
C E
= 2 V )
0 . 5
Typ
1 0
3
5
2 0 0
1 0 0
5 0
0 . 0 5
1
0 . 1
0 . 5
1 0
2 0
5
C o l l e c t o r - E m i t t e r V o l t a g e V
C E
( V )
Collector Current I
C
(A)
Without Heatsink
Natural Cooling
DC
10ms
1ms
V
C E
( s a t ) I
B
Characteristics (Typical)
0
3
2
1
0 . 3
5
1 0
1
1 0 0
5 0
B a s e C u r r e n t I
B
( m A )
Collector-Emitter Saturation Voltage V
CE(sat)
(V)
I
C
= 6A
2 A
4 A
C o l l e c t o r C u r r e n t I
C
( A )
DC Current Gain h
FE
0 . 0 3 0 . 0 5
0 . 5
1
5
1 0
0 . 1
100
50
30
500
1000
5000
10000
( V
C E
= 2 V )
125C
25C
30C
h
F E
I
C
Temperature
Characteristics (Typical)
Silicon NPN Triple Diffused Planar Transistor
(Complement to type 2SB1258)
Application : Driver for Solenoid, Relay and Motor, Series Regulator, and General Purpose
Symbol
V
CBO
V
CEO
V
EBO
I
C
I
B
P
C
Tj
T
stg
2SD1785
120
120
6
6(
Pulse
10)
1
30(Tc=25C)
150
55 to +150
Unit
V
V
V
A
A
W
C
C
s
Absolute maximum ratings
s
Electrical Characteristics
2SD1785
10
max
10
max
120
min
2000
min
1.5
max
100
typ
70
typ
Unit
A
mA
V
V
MHz
pF
Conditions
V
CB
=120V
V
EB
=6V
I
C
=10mA
V
CE
=2V, I
C
=3A
I
C
=2A, I
B
=3mA
V
CE
=12V, I
E
=0.1A
V
CB
=10V, f=1MHz
(Ta=25C)
(Ta=25C)
Symbol
I
CBO
I
EBO
V
(BR)CEO
h
FE
V
CE
(sat)
f
T
C
OB
External Dimensions FM20(TO220F)
3.3
0.2
10.1
0.2
4.0
0.2
16.9
0.3
13.0min
8.4
0.2
0.8
0.2
3.9
0.2
2.54
2.54
1.35
0.15
0.85
+0.2
-0.1
1.35
0.15
2.2
0.2
4.2
0.2
2.8
c0.5
2.4
0.2
0.45
+0.2
-0.1
B
E
C
a
b
s
Typical Switching Characteristics (Common Emitter)
V
CC
(V)
30
R
L
(
)
10
I
C
(A)
3
V
BB2
(V)
1.5
I
B2
(mA)
3
t
on
(
s)
0.5typ
t
stg
(
s)
5.5typ
t
f
(
s)
1.5typ
I
B1
(mA)
3
V
BB1
(V)
10
Weight : Approx 2.0g
a. Type No.
b. Lot No.
B
C
E
(2.5k
)(200
)
Equivalent
circuit
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