2SD1757K
Transistors
Power Transistor (15V, 0.5A)
2SD1757K
Features
1) Low V
CE(sat)
. (Typ.8mV at I
C
/I
B
= 10/1mA)
2) Optimal for muting.
External dimensions
(Unit : mm)
(1)
0.4
(3)
Absolute maximum ratings
(Ta=25°C)
0.15
1.6
2.8
Parameter
Collector-base voltage
Collector-emitter voltage
Emitter-base voltage
Collector current
Collector power dissipation
Junction temperature
Storage temperature
Symbol
V
CBO
V
CEO
V
EBO
I
C
P
C
Tj
Tstg
Limits
30
15
6.5
0.5
0.2
150
−55
to
+150
Unit
V
V
V
A
W
°C
°C
0.3to0.6
0to0.1
Each lead has same dimensions
0.8
1.1
0.95 0.95
1.9
2.9
(2)
ROHM : SMT3
EIAJ : SC-59
(1) Emitter
(2) Base
(3) Collector
Packaging specifications and h
FE
Type
Package
h
FE
Marking
Code
Basic ordering unit (pieces)
∗
Denotes h
FE
2SD1757K
SMT3
QRS
AA
∗
T146
3000
Electrical characteristics
(Ta=25°C)
Parameter
Collector-base breakdown voltage
Collector-emitter breakdown voltage
Emitter-base breakdown voltage
Collector cutoff current
Emitter cutoff current
Collector-emitter saturation voltage
DC current transfer ratio
Transition frequency
Output capacitance
Symbol
BV
CBO
BV
CEO
BV
EBO
I
CBO
I
EBO
V
CE(sat)
h
FE
f
T
Cob
Min.
30
15
6.5
−
−
−
120
−
−
Typ.
−
−
−
−
−
0.1
−
150
15
Max.
−
−
−
0.5
0.5
0.4
560
−
−
Unit
V
V
V
µA
µA
V
−
MHz
pF
I
C
=50µA
I
C
=1mA
I
E
=50µA
V
CB
=20V
V
EB
=4V
I
C
/I
B
=500mA/50mA
V
CE
/I
C
=3V/100mA
V
CE
=5V
, I
E
=−50mA
, f=100MHz
V
CB
=10V
, I
E
=0A
, f=1MHz
Conditions
Rev.A
1/3
2SD1757K
Transistors
Electrical characteristics curves
1000
500
COLLECTOR CURRENT : I
C
(mA)
COLLECTOR CURRENT : I
C
(mA)
Ta
=
25°C
V
CE
=
6V
500
200
100
50
20
10
5
2
1
0.5
0.2
0.1
0
800µA
300
700
µA
DC CURRENT GAIN : h
FE
400
Tc=25°C
I
B
=1mA
900
µ
A
1000
500
Ta=25°C
V
CE
=5V
200
100
50
V
CE
=1V
600µA
500
µA
3V
200
400µA
300µA
200µA
100µA
I
B
=0µA
8
10
100
20
10
1
0
0.2 0.4 0.6 0.8 1.0 1.2 1.4 1.6 1.8
0
2
4
6
2
5
10
20
50 100 200
500 1000
BASE TO EMITTER VOLTAGE : V
BE
(V)
COLLECTOR TO EMITTER VOLTAGE : V
CE
(V)
COLLECTOR CURRENT : I
C
(mA)
Fig.1 Ground emitter propagation characteristics
Fig.2 Ground emitter output characteristics
Fig.3 DC current gain vs. collector current ( )
COLLECTOR SATURATION VOLTAGE : V
CE(sat)
(mV)
1000
500
DC CURRENT GAIN : h
FE
V
CE
=5V
Ta=100°C
25°C
1000
500
200
100
50
I
C
/I
B
=50
COLLECTOR SATURATION VOLTAGE : V
CE(sat)
(mV)
Ta=25°C
1000
500
l
C
/l
B
=10
25°C
200
100
50
200
100
50
20
10
5
1
2
5
10
20
Ta=100°C
−55°C
−55°C
20
20
20
10
1
10
5
1
2
10
2
5
10
20
50 100 200
500 1000
5
10
20
50 100 200
500 1000
50 100 200
500 1000
COLLECTOR CURRENT : I
C
(mA)
COLLECTOR CURRENT : I
C
(mA)
COLLECTOR CURRENT : I
C
(mA)
Fig.4 DC current gain vs. collector current( )
Fig.5 Collector-emitter saturation voltage
vs. collector current ( )
Fig.6 Collector-emitter saturation voltage
vs. collector current ( )
COLLECTOR SATURATION VOLTAGE : V
CE(sat)
(mV)
1000
500
COLLECTOR SATURATION VOLTAGE : V
CE(sat)
(mV)
500
25°C
25°C
TRANSITION FREQUENCY : f
T
(MHz)
l
C
/l
B
=20
1000
l
C
/l
B
=50
500
Ta
=
25°C
V
CE
=
5V
200
100
50
20
10
5
1
2
5
10
20
200
100
50
Ta=100°C
200
100
Ta=100°C
−55°C
−55°C
50
20
10
−1 −2
−5 −10 −20
−50 −100 −200 −500
20
10
1
2
5
10
20
50 100 200
500 1000
50 100 200
500 1000
COLLECTOR CURRENT : I
C
(mA)
COLLECTOR CURRENT : I
C
(mA)
EMITTER CURRENT : I
E
(mA)
Fig.7 Collector-emitter saturation voltage
vs. collector current ( )
Fig.8 Collector-emitter saturation voltage
vs. collector current ( )
Fig.9 Gain bandwidth product vs. emitter current
Rev.A
2/3
2SD1757K
Transistors
COLLECTOR OUTPUT CAPACITANCE : Cob
(pF)
200
100
50
EMITTER INPUT CAPACITANCE : Cib
(pF)
Ta
=
25°C
f
=
1MHz
I
E
=
0A
200
ON RESISTANCE : Ron
(Ω)
100
50
Ta
=
25°C
f
=
1MHz
I
C
=
0A
10
Ta
=
25°C
5
20
10
20
10
5
2
5
1
2
0.1 0.2
0.5 1.0 2.0
5.0 10
20
50
COLLECTOR TO BASE VOLTAGE : V
CB
(V)
0.5
0.1
0.2
0.5
1.0
2.0
5.0
10
50
100
500
1000
EMITTER TO BASE VOLTAGE : V
EB
(V)
BASE CURRENT : I
B
(µA)
Fig.10 Collector output capacitance
vs. collector-base voltage
Fig.11 Emitter input capacitance
vs. emitter-base voltage
Fig.12 "ON" resistance vs. base current characteristics
1kΩ
input
v
i
f=1kHz
100mVrms
output
V
v
0
Fig.13 "ON" resistance measurement circuit
Rev.A
3/3
Appendix
Notes
No technical content pages of this document may be reproduced in any form or transmitted by any
means without prior permission of ROHM CO.,LTD.
The contents described herein are subject to change without notice. The specifications for the
product described in this document are for reference only. Upon actual use, therefore, please request
that specifications to be separately delivered.
Application circuit diagrams and circuit constants contained herein are shown as examples of standard
use and operation. Please pay careful attention to the peripheral conditions when designing circuits
and deciding upon circuit constants in the set.
Any data, including, but not limited to application circuit diagrams information, described herein
are intended only as illustrations of such devices and not as the specifications for such devices. ROHM
CO.,LTD. disclaims any warranty that any use of such devices shall be free from infringement of any
third party's intellectual property rights or other proprietary rights, and further, assumes no liability of
whatsoever nature in the event of any such infringement, or arising from or connected with or related
to the use of such devices.
Upon the sale of any such devices, other than for buyer's right to use such devices itself, resell or
otherwise dispose of the same, no express or implied right or license to practice or commercially
exploit any intellectual property rights or other proprietary rights owned or controlled by
ROHM CO., LTD. is granted to any such buyer.
Products listed in this document are no antiradiation design.
The products listed in this document are designed to be used with ordinary electronic equipment or devices
(such as audio visual equipment, office-automation equipment, communications devices, electrical
appliances and electronic toys).
Should you intend to use these products with equipment or devices which require an extremely high level of
reliability and the malfunction of with would directly endanger human life (such as medical instruments,
transportation equipment, aerospace machinery, nuclear-reactor controllers, fuel controllers and other
safety devices), please be sure to consult with our sales representative in advance.
About Export Control Order in Japan
Products described herein are the objects of controlled goods in Annex 1 (Item 16) of Export Trade Control
Order in Japan.
In case of export from Japan, please confirm if it applies to "objective" criteria or an "informed" (by MITI clause)
on the basis of "catch all controls for Non-Proliferation of Weapons of Mass Destruction.
Appendix1-Rev1.1
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