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SSAC70GK12 View Datasheet(PDF) - Sirectifier Electronics

Part Name
Description
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SSAC70GK12 Datasheet PDF : 4 Pages
1 2 3 4
SSAC70
Solid State AC Controller(Anti-Parallel Thyristor-Thyristor Modules)
Fig. 7 Three phase AC-controller:
Power dissipation versus RMS
output current and ambient
temperature
3 x SSAC70
SSAC70
SSAC70
Fig. 8 Transient thermal impedance
junction to case (per thyristor or
diode)
RthJC for various conduction angles d:
d
DC
180oC
120oC
60oC
30oC
RthJC (K/W)
0.3
0.31
0.33
0.35
0.37
Constants for ZthJC calculation:
i
Rthi (K/W)
ti (s)
1
0.008
0.0019
2
0.054
0.047
3
0.238
0.3
Fig. 9 Transient thermal impedance
junction to heatsink (per thyristor
or diode)
RthJK for various conduction angles d:
d
DC
180oC
120oC
60oC
30oC
RthJK (K/W)
0.5
0.51
0.53
0.55
0.57
Constants for ZthJK calculation:
i
Rthi (K/W)
ti (s)
1
0.008
0.0019
2
0.054
0.047
3
0.238
0.3
4
0.2
1.25
 

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