2SA1797
B
C
C
E
C
C
d
J
S
Transistors
Power Transistor (−50V, −3A)
2SA1797
zFeatures zExternal dimensions (Unit : mm)
1) Low saturation voltage.
V
CE (sat)
= −0.35V (Max.) at IC / IB = −1A / −50mA.
2) Excellent DC current gain characteristics.
3) Complements the 2SC4672.
zPackaging specifications
Type 2SA1797
Package
h
FE
Marking
Code
asic ordering unit (pieces)
∗Denotes h
FE
MPT3
PQ
AG
T100
1000
∗
zAbsolute maximum ratings (Ta=25°C)
Parameter Symbol
ollector-base voltage
ollector-emitter voltage
mitter-base voltage
ollector current
ollector power
issipation
2SA1797
unction temperature
torage temperature
∗1 Single pulse, Pw=10ms
∗2 When mounted on a 40 40 0.7mm ceramic board.
+
+
CBO
V
V
CEO
V
EBO
I
P
Tj
Tstg
C
C
Limits
−50
−50
−6
−3
−6
0.5
2
150
−55~+150
zElectrical characteristics (Ta=25°C)
Parameter Symbol Min. Typ. Max. Unit Conditions
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
∗ Measured using pulse current
BV
BV
BV
I
I
V
CE(sat)
Cob
CBO
EBO
h
f
CBO
CEO
EBO
FE
T
−50
−50
−6
−
−
−
82
−
−
−
−
−
−
−
−0.15
−
200
36
Unit
V
V
V
A (DC)
A (Pulse)
W
°C
°C
−0.1
−0.1
−0.35
270
MPT3
(1)Base
(2)Collector
(3)Emitter
∗
1
∗
2
−
−
−
−
−
V
V
V
µA
µA
V
−
MHz
pF
4.5
(1)
I
C
=−50µA
C
=−1mA
I
E
=−50µA
I
V
CB
=−50V
EB
=−5V
V
1.6
0.5
3.0
0.5
2.5
4.0
(3)(2)
1.0
0.40.4
1.51.5
IC/IB=−1A/−50mA
CE/IC
=−2V/−0.5A
V
CE
=−2V, IE=0.5A, f=100MHz
V
V
CB
=−10V, IE=0A, f=1MHz
Rev.B 1/2
1.5
0.4
∗
∗
Transistors
)
n
0
0
)
n
nt
)
z Electrical characteristic curves
2.0
Ta=25°C
1.8
(A)
C
1.6
1.4
1.2
1
CURRENT : l
800m
600m
400m
COLLECTOR
200m
0
010678945231
B
l
=10mA
9mA
8mA
COLLECTOR TO EMITTER VOLTAGE
Fig.1 Grounded emitter output
characteristics
(V
-
CE (sat)
-
-
1
0.5
0.2
7mA
6mA
5mA
4mA
3mA
2mA
1mA
: VCE (V
−10
−5
A)
m
−2
(
C
−1
−0.5
−0.2
−0.1
−0.05
−0.02
−0.01
−5m
COLLECTOR CURRENT : I
−2m
−1m
BASE TO EMITTER VOLTAGE : V
Ta=100°C
Ta=25°C
Ta=−40°C
−0.2 −0.4 −0.6 −0.8 −1.0 −1.2 −1.40
Fig.2 Grounded emitter propagatio
characteristics
lC/lB=20
(A)
C
VCE=2V
BE
10
1
(V)
5000
2000
FE
1000
500
200
100
50
DC CURRENT GAIN : h
20
10
5
-1m-5m-
-2m-
0.01-0.05-0.2-1
COLLECTOR CURRENT : IC (A)
Fig.3 DC current gain vs.
10ms
100ms
2SA1797
VCE=2V
°C
Ta=100
Ta=25
°C
°C
Ta=−40
0.02-0.1-0.5-2-5-1
collector current
1ms
°C
-
0.1
-
0.05
-
0.02
-
0.01
-1m-5m-
-2m-
COLLECTOR SATURATION VOLTAGE : V
COLLECTOR CURRENT : IC (A)
Ta=100
Ta=25
°C
°C
Ta=−40
0.02-0.1-0.5-2-5-1
0.01-0.05-0.2-1
Fig.4 Collector-emitter saturatio
voltage vs. collector curre
0.1
0.01
Ta=25°C
Single non repetitive pulse
COLLECTOR CURRENT : l
Mounted on epoxy board
12mm×15mm×
0.001
0.1
DC
t
0.8mm
1
10
COLLECTOR TO EMITTER VOLTAGE : VCE (V
Fig.5 Safe operating area
100
Rev.B 2/2
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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