User guide
Document Number: 94417 For technical questions, contact: indmodules@vishay.com
www.vishay.com
Revision: 08-Oct-09 5
VSK.170PbF, VSK.250PbF Series
SCR/SCR and SCR/Diode
(MAGN-A-PAK Power Modules), 170 A/250 A
Vishay High Power Products
Fig. 5 - Maximum Non-Repetitive Surge Current Fig. 6 - Maximum Non-Repetitive Surge Current
Fig. 7 - On-State Power Loss Characteristics
Fig. 8 - On-State Power Loss Characteristics
2000
2500
3000
3500
4000
4500
5000
110100
Number Of Equal Amplitude Half Cycle Current Pulses (N)
At Any Rated Load Condition And With
Rated V
RRM
Applied Following Surge.
Peak Half Sine Wave On-state Current (A)
VSK.170.. Series
Per Junction
Initial T
J
= 130°C
@ 60 Hz 0.0083 s
@ 50 Hz 0.0100 s
2000
2500
3000
3500
4000
4500
5000
0.01 0.1 1
Peak Half Sine Wave On-state Current (A)
Pulse Train Duration (s)
Maximum Non Repetitive Surge Curren t
Versus Pulse Train Duration. Control
Of Conduction May Not Be Maintained .
Initial T
J
= 130°C
No Voltage Reapplied
Rated V
RRM
Reapplied
VSK.170.. Series
Per Junction
020406080100120
0
.
3
5
K
/W
0
.
3
K
/
W
0
.
2
5
K
/
W
0
.
2
K
/
W
0
.
0
8K
/
W
0.
1
2
K
/
W
0
.
1
6
K
/
W
Maximum Allowable Ambient Temperature (°C)
R
=
0
.
0
4
K
/
W
-
D
e
l
t
a
R
t
h
S
A
0
50
100
150
200
250
300
350
400
0 50 100 150 200 250 300 350 400
180°
120°
90°
60°
30°
Maximum Total On-state Power Loss (W)
Total RMS Output Current (A)
Conduction Angle
VSK.170.. Series
Per Module
T
J
= 130°C
0 20406080100120
Maximum Allowable Ambient Temperature (°C)
R
=
0
.
0
2
K
/
W
-
D
e
l
t
a
R
0
.
0
4
K
/
W
t
h
S
A
0
.
0
6
K
/
W
0
.
0
8
K
/
W
0
.
1
K
/
W
0
.1
2
K
/
W
0
.
1
6
K
/
W
0
.
2
K
/
W
0
.
2
5
K
/
W
0
.
3
5
K
/
W
0
100
200
300
400
500
600
700
800
900
1000
0 50 100 150 200 250 300 350
Total Output Current (A)
Maximum Total Power Loss (W)
180°
(Sine)
180°
(Rect)
2 x VSK.170.. Series
Single Phase Bridge
Connected
T
J
= 130°C