by SEMIKRON
B 4 7
Antiparallel Thyristors
with Isolated Water Flow
SKIW 700
SKIW 900
Features
Compact units containing two
high current thyristors
connected in antiparallel
Internal insulation between
thyristors and cooling media via
aluminium oxyde (AlO
2
)
All plastic material used carries
Underwriters Laboratories
flammability classification 94V-0
Typical Applications
Large resistance welding
equipment
Large electroplating equipment
V
DRM
V
RSM
V
RRM
I
RMS
1)
(Vol
w
= 4 l/min., T
w
= 40
C, ED = 50 %, n = 10)
V
850 A
1200 A
1200
SKIW 700/12
SKIW 900/12
1400
SKIW 700/14
SKIW 900/14
1600
SKIW 700/16
SKIW 900/16
Symbol Conditions
SKIW 700
SKIW 900
I
RMS
1)
Vol
w
= 4 l/min, T
w
= 40
C, ED =100 %
700 A
900 A
I
TSM
T
vj
= 40
C; 10 ms
7 000 A
10 000 A
T
vj
= 125
C; 10 ms
6 000 A
8 500 A
i
2
t
T
vj
= 40
C; 8,3 ... 10 ms
245 000 A
2
s 500 000 A
2
s
T
vj
= 125
C; 8,3 ... 10 ms
180 000 A
2
s 360 000 A
2
s
(di/dt)
cr
f = 50 . . . 60 Hz
125 A/
s
(dv/dt)
cr
T
vj
= 125
C
200 V
/
s
t
q
T
vj
= 125
C; typ.
150
s
I
H
T
vj
= 25
C
200 mA
I
L
T
vj
= 25
C; R
G
= 33
600 mA
V
T
T
vj
= 25
C; (I
T
= . . .); max.
1,65 V
1,45 V
(500 A)
(800 A)
V
T(TO)
T
vj
= 125
C
1,0 V
1,0 V
r
T
T
vj
= 125
C
0,7 m
0,5 m
V
GT
T
vj
= 25
C
3 V
I
GT
T
vj
= 25
C
200 mA
V
GD
T
vj
= 125
C
0,25 V
I
GD
T
vj
= 125
C
10 mA
R
thjw
Vol
w
= 4 l/min
0,175
C/W
0,14
C/W
T
vj
max.
125
C
T
stg
min. . . . max.
5 . . . 85
C
V
ISOL
a.c. 50 Hz; r.m.s.; 1 min
2500 V
M
2
SI units / US units
20 Nm / 180 lb. in.
p
w
max.
10 bar
w
1,3 kg
Case
C 1
1)
For Vol
w
= 2 l/min and T
w
= 30
C the same I
RMS
values apply
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