by SEMIKRON
B 3 13
0895
Thyristors
SKT 40
SKT 50
Features
Hermetic metal cases with
glass insulators
Threaded studs ISO M8
or
UNF 1/4-28
International standard cases
Typical Applications
DC motor control
(e. g. for machine tools)
Controlled rectifiers
(e. g. for battery charging)
AC controllers
(e. g. for temperature control)
o
available in limited quantities
V
RSM
V
RRM
(
dv
)
I
TRMS
(maximum values for continuous operation)
V
DRM
dt
cr
63 A
78 A
I
TAV
(sin. 180; T
case
= . . .
C)
V
V
V/
s
40 A (80
C)
50 A (78
C)
500
400
500
SKT 40/04 D
700
600
500
SKT 40/06 D
SKT 50/06 D*
900
800
500
SKT 40/08 D
SKT 50/08 D
1300
1200
1000
SKT 40/12 E
SKT 50/12 E*
1500
1400
1000
SKT 40/14 E
SKT 50/14 E*
1700
1600
1000
SKT 40/16 E
SKT 50/16 E*
1900
1800
1000
SKT 40/18 E
o
SKT 50/18 E
o
Symbol Conditions
SKT 40
SKT 50
Units
I
TAV
sin. 180; T
case
= 85
C
38
45
A
I
TSM
T
vj
= 25
C; 10 ms
700
1050
A
T
vj
= 130
C; 10 ms
600
900
A
i
2
t
T
vj
= 25
C; 8,35 ... 10 ms
2500
5000
A
2
s
T
vj
= 130
C; 8,35 ... 10 ms
1800
4000
A
2
s
t
gd
T
vj
= 25
C; I
G
= 1 A;
di
G
/dt = 1 A/
s
typ. 1
s
t
gr
V
D
= 0,67 . V
DRM
typ. 1,5
s
(di/dt)
cr
f = 50 . . . 60 Hz
50
A/
s
I
H
T
vj
= 25
C
typ. 100; max. 200
mA
I
L
T
vj
= 25
C; R
G
= 33
typ. 250; max. 400
mA
t
q
T
vj
= 130
C; typ.
100
s
V
T
T
vj
= 25
C; I
T
= 120 A; max.
1,95
1,8
V
V
T(TO)
T
vj
= 130
C
1,0
1,1
V
r
T
T
vj
= 130
C
9
5
m
I
DD
, I
RD
T
vj
= 130
C; V
DD
= V
DRM
V
RD
= V
RRM
8
8
mA
V
GT
T
vj
= 25
C
3
V
I
GT
T
vj
= 25
C
150
mA
V
GD
T
vj
= 130
C
0,25
V
I
GD
T
vj
= 130
C
5
mA
R
thjc
cont.
0,60
0,57
C/W
sin. 180
0,66
0,60
C/W
rec. 120
0,70
0,65
C/W
R
thch
0,20
C/W
T
vj
40 ... +130
C
T
stg
55 ... +150
C
M
SI units
4 (UNF: 2,5)
Nm
US units
35 (UNF: 22)
lb. in.
a
5 . 9,81
m/s
2
w
2,2
g
Case
B 3
* Available with UNF thread 1/4-28 UNF2A, e.g. SKT 50/06 D UNF
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