PSKT19 Datasheet, PDF (4/4 Pages) Powersem GmbH – Thyristor Modules

Circuit
W3
3 x PSKT 19
Fig. 7 Three phase AC-controller:
Power dissipation versus RMS
output current and ambient
temperature
PSKT 19
Z_thJC(t)
Fig. 8 Transient thermal impedance
junction to case (per thyristor)
R_thJC for various conduction angles d:
d
DC
180°
120°
60°
30°
R_thJC (K/W)
1.3
1.35
1.39
1.42
1.45
Constants for Z_thJC calculation:
i
R_thi (K/W)
t_i (s)
1
0.018
0.0033
2
0.041
0.0216
3
1.241
0.191
PSKT 19
Z_thJK(t)
Fig. 9 Transient thermal impedance
junction to heatsink (per thyristor)
R_thJK for various conduction angles d:
d
DC
180°
120°
60°
30°
R_thJK (K/W)
1.5
1.55
1.59
1.62
1.65
Constants for Z_thJK calculation:
i
R_thi (K/W)
t_i (s)
1
0.018
0.0033
2
0.041
0.0216
3
1.241
0.191
4
0.2
0.46
POWERSEM GmbH, Walpersdorfer Str. 53  2002 POWERSEM reserves the right to change limits, test conditions and dimensions
D - 91126 Schwabach
Phone: 09122 - 9764 - 0 FAX: 09122 - 9764 - 20