1SS400_1 [ROHM]
Switching diode; 开关二极管
ROHM 
1SS400
Diodes
Switching diode
1SS400
zApplications
zDimensions (Unit : mm)
zLand size figure (Unit : mm)
High speed switching
0.8±0.05
0.12±0.05
0.8
zFeatures
1) Ultra small mold type. (EMD2)
2) High reliability.
EMD2
zConstruction
Silicon epitaxial planar
zStructure
0.3±0.05
0.6±0.1
ROHM : EMD2
JEDEC :SOD-523
JEITA : SC-79
dot (year week factory)
zTaping dimensions (Unit : mm)
0.2±0.05
φ1.5±0.05
2.0±0.05
4.0±0.1
0.2
φ0.5
4.0±0.1
2.0±0.05
0.95±0.06
0
空ポケット
0.76±0.05
zAbsolute maximum ratings (Ta=25°C)
Parameter
Reverse voltage (repetitive peak)
Reverse voltage (DC)
Limits
Symbol
VRM
VR
Unit
V
V
90
80
Forward voltage (repetitive peak)
Average rectified forward current
Surge current （t=1s）
IFM
225
100
500
125
mA
mA
mA
℃
Io
Isurge
Tj
Junction temperature
Storage temperature
-55 to +125
Tstg
℃
zElectrical characteristics (Ta=25°C)
Parameter
Forward voltage
Symbol
Min.
Typ.
Max.
Unit
V
Conditions
VF
IR
-
-
-
-
-
-
-
-
1.2
0.1
3
IF=100mA
Reverse current
µA
pF
ns
VR=80V
Capacitance between terminal
Revers e recovery tim e
Ct
trr
VR=0.5V , f=1MHz
4
V =6V , IF=10mA , RL=100
Ω
R
Rev.D
1/2
1SS400
Diodes
zElectrical characteristic curves (Ta=25°C)
10
100000
100
10
f=1MHz
Ta=75℃
Ta=125℃
Ta=125℃
Ta=75℃
10000
1000
100
10
Ta=25℃
1
1
Ta=25℃
Ta=-25℃
Ta=-25℃
0.1
0.01
1
0.1
0.1
0
5
10
15
0
0.1 0.2 0.3 0.4 0.5 0.6 0.7 0.8 0.9
FORWARD VOLTAGE：VF(V)
VF-IF CHARACTERISTICS
1
1.1 1.2
0
20
40
60
80
100
120
REVERSE VOLTAGE:VR(V)
VR-Ct CHARACTERISTICS
REVERSE VOLTAGE：VR(V)
VR-IR CHARACTERISTICS
100
80
60
40
20
0
950
940
930
920
910
900
1
Ta=25℃
VR=80V
n=30pcs
Ta=25℃
Ta=25℃
IF=100mA
n=30pcs
0.9
0.8
0.7
0.6
0.5
0.4
0.3
0.2
0.1
0
VR=0.5V
f=1MHz
n=10pcs
AVE:0.698pF
AVE:930.3mV
AVE:12.47nA
VF DISPERSION MAP
IR DISPERSION MAP
Ct DISPERSION MAP
20
15
10
5
100
10
1
5
4
3
2
1
0
Ta=25℃
VR=6V
IF=10mA
RL=100Ω
Irr=0.1*IR
n=10pcs
1cyc
Ifsm
8.3ms
AVE:1.20ns
AVE:4.05A
Ifsm
8.3m 8.3m
1cyc
0
0.1
1
10
100
IFSM DISPERSION MAP
NUMBER OF CYCLES
trr DISPERSION MAP
IFSM-CYCLE CHARACTERISTICS
10
1000
100
10
100
10
1
Rth(j-a)
Rth(j-c)
9
8
7
6
5
4
3
2
1
0
AVE:6.43kV
Mounted on epoxy board
IM=1mA
IF=10mA
AVE:1.58kV
Ifsm
time
1ms
t
300us
C=200pF
R=0Ω
C=100pF
R=1.5kΩ
0.1
1
0.001
0.1
1
10
100
0.01
0.1
1
10
100
1000
TIME:t(ms)
TIME:t(s)
Rth-t CHARACTERISTICS
ESD DISPERSION MAP
IFSM-t CHARACTERISTICS
Rev.D
2/2
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 which 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.
It is our top priority to supply products with the utmost quality and reliability. However, there is always a chance
of failure due to unexpected factors. Therefore, please take into account the derating characteristics and allow
for sufficient safety features, such as extra margin, anti-flammability, and fail-safe measures when designing in
order to prevent possible accidents that may result in bodily harm or fire caused by component failure. ROHM
cannot be held responsible for any damages arising from the use of the products under conditions out of the
range of the specifications or due to non-compliance with the NOTES specified in this catalog.
Thank you for your accessing to ROHM product informations.
More detail product informations and catalogs are available, please contact your nearest sales office.
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Appendix1-Rev2.0
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