Transistors
Power Transistor (15V, 0.5A)
2SD1757K
zFeatures
1) Low V
CE(sat). (Typ.8mV at IC/IB = 10/1mA)
2) Optimal for muting.
zAbsolute maximum ratings (Ta=25°C)
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
zPackaging specifications and hFE
Type
Package
FE
h
Marking
Code
Basic ordering unit (pieces)
∗ Denotes h
FE
2SD1757K
SMT3
QRS
∗
AA
T146
3000
zElectrical characteristics (Ta=25°C)
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
Parameter Symbol Min. Typ. Max. Unit Conditions
BV
BV
BV
V
I
CBO
I
EBO
CE(sat)
h
f
Cob
CBO
CEO
EBO
FE
T
6.5
120
Unit
V
V
V
A
W
°C
°C
−
−
30
15
−
−
−
−
−
0.1
150
−
−
−
−
0.5
−
0.5
−
0.4
560
−
−
−
15
zExternal dimensions (Unit : mm)
0.4
0.3to0.6
ROHM : SMT3
EIAJ : SC-59
I
V
C
=50µA
V
C
=1mA
I
V
E
=50µA
I
µA
CB
=20V
V
µA
V
EB
=4V
V
I
C/IB
=500mA/50mA
−
V
CE/IC
MHz
pF
=3V/100mA
V
CE
=5V , IE=−50mA , f=100MHz
CB
=10V , IE=0A , f=1MHz
V
)
3
(
1.6
2.8
0.15
0to0.1
Each lead has same dimensions
2SD1757K
)
1
(
1.9
2.9
)
2
(
0.95 0.95
1.1
0.8
(1) Emitter
(2) Base
(3) Collector
Rev.A 1/3
Transistors
zElectrical characteristics curves
1000
500
200
(mA)
C
100
50
20
10
5
2
1
0.5
COLLECTOR CURRENT : I
0.2
0.1
0.2 0 0.4 0.6 0.8 1.0 1.2 1.4 1.6 1.8
BASE TO EMITTER VOLTAGE : V
Fig.1 Ground emitter propagation characteristics
Ta=25
V
CE
°C
=
6V
(V)
BE
1000
500
FE
200
100
50
DC CURRENT GAIN : h
20
10
1
2 5 10 20 50
COLLECTOR CURRENT : I
Ta=100
25
−55
Fig.4 DC current gain vs. collector current( )
VCE=
°C
°C
°C
100 200 500 1000
(mA)
C
5V
500
(mA)
400
C
300
200
100
COLLECTOR CURRENT : I
0
024681
COLLECTOR TO EMITTER VOLTAGE : V
Tc=25
=1mA
B
I
900
800µ
700
600µ
500µA
400µA
300µ
200µA
100µA
IB=0µA
Fig.2 Ground emitter output characteristics
1000
(mV)
500
CE(sat)
200
100
50
IC/IB=50
20
10
COLLECTOR SATURATION VOLTAGE : V
20
10
5
12 5102050
COLLECTOR CURRENT : I
Ta=25
°C
100 200 500 1000
(mA)
C
Fig.5 Collector-emitter saturation voltage
vs. collector current ( )
°C
µA
µ
CE
2SD1757K
1000
500
FE
A
A
A
A
(V)
200
100
50
DC CURRENT GAIN : h
20
10
0
1
2 5 10 20 50
COLLECTOR CURRENT : I
Fig.3 DC current gain vs. collector current ( )
1000
(mV)
500
CE(sat)
200
100
50
20
10
5
12 5102050
COLLECTOR SATURATION VOLTAGE : V
COLLECTOR CURRENT : I
Ta=100°C
Fig.6 Collector-emitter saturation voltage
vs. collector current ( )
Ta=25°C
VCE=5V
VCE=1V
3V
100 200 500 1000
(mA)
C
lC/lB=10
25°C
−55°C
100 200 500 1000
(mA)
C
1000
(mV)
500
CE(sat)
200
100
50
20
10
5
12 5102050
COLLECTOR SATURATION VOLTAGE : V
COLLECTOR CURRENT : I
Ta=100°C
lC/lB=20
25°C
−55°C
100 200 500 1000
(mA)
C
Fig.7 Collector-emitter saturation voltage
vs. collector current ( )
1000
(mV)
CE(sat)
500
200
100
50
20
10
12 5102050
COLLECTOR SATURATION VOLTAGE : V
COLLECTOR CURRENT : I
Ta=100°C
lC/lB=50
25°C
−55°C
100 200 500 1000
(mA)
C
Fig.8 Collector-emitter saturation voltage
vs. collector current ( )
500
(MHz)
T
200
100
50
20
10
TRANSITION FREQUENCY : f
−1
−2 −5
−10 −20
EMITTER CURRENT : I
Ta=25
V
−50 −100
(mA)
E
°C
=
5V
CE
−200 −500
Fig.9 Gain bandwidth product vs. emitter current
Rev.A 2/3
Transistors
200
(pF)
100
50
20
10
2SD1757K
Ta=25
=1MHz
f
IE=0A
200
°C
(pF)
100
50
20
Ta=25
=
1MHz
f
I
=
0A
C
°C
10
5
(Ω)
Ta=25
°C
5
2
COLLECTOR OUTPUT CAPACITANCE : Cob
0.2 0.5 1.0 2.0 5.0 10 20 50
0.1
COLLECTOR TO BASE VOLTAGE : V
(V)
CB
Fig.10 Collector output capacitance
vs. collector-base voltage
1kΩ
input
v
i
f=1kHz
100mVrms
Fig.13 "ON" resistance measurement circuit
10
5
EMITTER INPUT CAPACITANCE : Cib
2
0.1 10
0.2 0.5 1.0 2.0 5.0
EMITTER TO BASE VOLTAGE : V
Fig.11 Emitter input capacitance
vs. emitter-base voltage
output
V
v
0
1
ON RESISTANCE : Ron
0.5
50 1000
100 500
(V)
EB
BASE CURRENT : I
B
(µA)
Fig.12 "ON" resistance vs. base current characteristics
Rev.A 3/3
Appendix
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.
Notes
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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