Page 1
2SA1812 / 2SA1727 / 2SA1776
Transistors
High-voltage Switching Transistor
( 400V, 0.5A)
2SA1812 / 2SA1727 / 2SA1776
Features
1) High breakdown voltage, BVCEO= 400V.
2) Low saturation voltage, typically VCE (sat) = 0.3V at IC / IB = 100mA / 10mA.
3) High switching speed, typically tf : 1 s at IC = 100mA.
4) Wide SOA (safe operating area).
Absolute maximum ratings (Ta
Parameter Symbol
Collector-base voltage
Collector-emitter voltage
Emitter-base voltage
Collector current
2SA1812
Collector power
dissipation
Junction temperature
Storage temperature
1 Single pulse 2 When mounted on a 40 40 0.7mm ceramic board.
3 When t = 1.7mm and the foil collector area on the PC board is 1cm
Packaging specifications and hFE
Basic ordering unit (pieces)
Denotes hFE
2SA1727
2SA1776
Type 2SA1812
Package
hFE
Marking
Code
Electrical characteristics (Ta
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
DC current tranfer ratio
Collector-emitter saturation voltage
Base-emitter saturation voltage
Transition frequency
Output capacitance
Turn-on time
Storage time
Fall time
=
25°C)
Limits
VCBO
VCEO
VEBO
IC
PC
Tj
Tstg
MPT3
PQ
AJ
T100
3000
=
25°C)
BVCBO
BVCEO
BVEBO
ICBO
IEBO
hFE
VCE(sat)
VBE(sat) V IC/IB 100mA / 10mA
fT
Cob
ton 0.6
tstg 2.7
tf 1
55 to +150
2SA1727
CPT3
PQ
TL
3000
400
400
7
82 150
400
400
7
0.5
1.0
0.5
2
1
10
1
150
2
or greater.
2SA1776
ATV
PQ
TV2
2500
12
18
Unit
V
V
V
A (DC)
A (Pulse)
W
W
W
W (Tc 25°C)
W
°C
°C
10
10
270
1
1.2
MHz
1
2
3
V
IC 50 A
V
IC 1mA
V
IE 50 A
VCB 400V
A
VEB 6V
A
VCE 5V , IC 50mA
V
IC/IB 100mA / 10mA
VCB 5V , IE 50mA , f 5MHz
pF
VCE 10V , IE 0A , f 1MHz
s
IC 100mA, RL 1.5k
s
IB1 IB2 10mA
VCC to 150V
s
Rev.A
1/3
Page 2
Transistors
Electrical characteristic curves
-
0.5
180mA
200mA
-
-
-
-
0.4
-
0.3
-
0.2
-
0.1
COLLECTOR CURRENT : lC (A)
0
0
COLLECTOR TO EMITTER VOLTAGE : VCE (V)
Fig.1 Grouded emitter output
1000
500
200
100
50
20
10
5
DC CURRENT GAIN : hFE
2
1
-
0.001
-
0.002-0.01-0.05
COLLECTOR CURRENT : IC (A)
Fig.4 DC current gain vs.
1000
500
200
100
50
20
10
5
2
TRANSITION FREQUENCY : fT (MHZ)
1
0.0005
0.001 0.005
COLLECTOR CURRENT : IE (A)
Fig.7 TRANSITION FREQUENCY
100mA
-
140mA
120mA
160mA
-
-
80mA
-
60mA
-
40mA
-
20mA
-
=
B
l
Ta=25°C
-6-
-
4
-
2
8
characteristics
VCE=-5V
Ta=100°C
25°C
-
25°C
-
0.1-0.2-0.5
-
0.02
-
0.005
collector current ( )
Ta=25°C
VCE=-5V
0.2 0.50.02 0.050.10.010.002
vs. EMITTER CURRENT
-
10
-1
2SA1812 / 2SA1727 / 2SA1776
-
1
-
0.5
-
0.2
-
0.1
-
0.05
-
0.02
-
0.01
-
-
COLLECTOR CURRENT : lC (A)
-
-
0.0005
0.005
0.002
0.001
°C
°C
°C
25
25
-
Ta=100
0
-
0.2-0.4-0.6-0.8-1.0-1.2-1.4-1.6-1.8
COLLECTOR TO EMITTER VOLTAGE : VBE (V)
Fig.2 Grounded emitter propagation
characteristics
-
10
-
5
-
2
-
1
-
COLLECTOR SATURATION VOLTAGE : VCE (sat) (V)
0.5
-
0.2
-
0.1
-
0.05
-
0.02
-
0.01
-
0.001
-
0.002-0.01-0.05
COLLECTOR CURRENT : IC (A)
-
0.005
=50
B
/l
C
l
20
-
0.02
Fig.5 Collector-emitter saturation
voltage vs. collector current
1000
500
200
100
50
20
10
5
2
1
-
0.05
-
0.1-0.2
COLLECTOR OUTPUT CAPACITANCE : COb (pF)
COLLECTOR TO BASE VOLTAGE: VCB (V)
-1-2-5-10-
-
0.5
Fig.8 Collector output capacitance
vs. collector-base voltage
10
VCE=-5V
Ta=25°C
-
0.1-0.2-0.5
Ta=25°C
f=1MH
lE=0A
1000
500
200
100
50
20
10
5
DC CURRENT GAIN : hFE
2
-
2.0
1
-
0.001
-
0.002-0.01-0.05
COLLECTOR CURRENT : IC (A)
-
0.005
-
0.02
Ta=25°C
VCE=-10V
-
5V
-
0.1-0.2-0.5
-
1
Fig.3 DC current gain vs.
collector current ( )
-
10
-
5
-
2
-
1
Ta=-25°C
-
0.5
25°C
-
0.2
-
0.1
-
0.05
-
0.02
-
0.01
-
COLLECTOR SATURATION VOLTAGE : VCE (sat) (V)
0.001
BASE SATURATION VOLTAGE : VBE (sat) (V)
-
1
100°C
Ta=100°C
-
25°C
25°C
-
0.02
-
0.005
-
0.002-0.01-0.05
COLLECTOR CURRENT : IC (A)
VBE(sat)
VCE(sat)
lC/lB=10
-
0.1-0.2-0.5
-
1
Fig.6 Collector-emitter saturation
voltage vs. collector current
Base-emitter saturation
voltage vs. collector current
-
10
Z
-
50
20
-
5
-
2
lC Max. (Pulse )
-
1
-
0.5
-
0.2
-
0.1
-
0.05
Ta=25°C
(When mounted on a
-
0.02
40 40 0.7mm
-
0.01
ceramic board.)
-
0.005
Single
COLLECTOR CURRENT : lC (A)
nonrepetitive
-
0.002
pulse
-
0.001
-1-2-5-10-20-50-
PW=10ms
100ms
100-200-500
COLLECTOR TO EMITTER VOLTAGE : VCE (V)
Fig.9 Safe operating area (2SA1812)
Rev.A
2/3
Page 3
Transistors
2SA1812 / 2SA1727 / 2SA1776
100000
(°C / W)
th
10000
1000
100
10
1
0.1
TRANSIENT THERMAL RESISTANCE : R
0.001 10001 10 1000.10.01
(1) When mounted on a
40 40 0.7mm ceramic board
(2) Unmounted
PULSE WIDTH : PW (s)
Fig.10 TRANSIENT THERMAL
RESISTANCE (2SA1812)
-
10
-
5
-
2
lC Max. (Pulse )
-
1
DC
-
0.5
-
0.2
-
0.1
-
0.05
-
0.02
-
0.01
Ta=25°C
-
0.005
Single
COLLECTOR CURRENT : lC (A)
nonrepetitive
-
0.002
pulse
-
0.001
-1-2-5-10-20-50-
PW=10ms
100ms
100-200-500-1000
COLLECTOR TO EMITTER VOLTAGE : VCE (V)
Fig.13 Safe operating area (2SA1776)
-
10
-
5
-
2
lC Max. (Pulse )
-
1
DC
-
(2)
(1)
0.5
-
0.2
-
0.1
-
0.05
-
0.02
-
0.01
Tc=25°C
-
0.005
Single
COLLECTOR CURRENT : lC (A)
nonrepetitive
-
0.002
pulse
-
0.001
-1-2-5-10-20-50-
PW=10ms
100ms
100-200-500-1000
COLLECTOR TO EMITTER VOLTAGE : VCE (V)
Fig.11 Safe operating area (2SA1727)
100000
(°C / W)
th
10000
1000
100
10
1
0.1
TRANSIENT THERMAL RESISTANCE : R
0.001 10001 10 1000.10.01
(1) Using Infinite heat sink
(2) Unmounted
TIME : t (s)
Fig.12 TRANSIENT THERMAL
(2)
(1)
RESISTANCE (2SA1727)
100000
(°C / W)
th
10000
1000
100
10
1
0.1
TRANSIENT THERMAL RESISTANCE : R
0.001 10001 10 1000.10.01
Using printed circuit board
1.7mm thick, collector plating
1cm2 or larger.
PULSE WIDTH : PW (s)
Fig.14 TRANSIENT THERMAL
RESISTANCE (2SA1776)
Switching characteristic measurement circuit
RL=1.5k
lC
VIN
PW
PW_
~50 s
duty cycle
RG
<
1
=
lB1
T.U.T
lB2
+VBB
Fig.15 Switching characteristic measurement circuit
VCC_~-
150V
IB
lB2
lB1
IC
10%
lc
90%
ton tstg tf
Rev.A
3/3
Page 4
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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