PSKD72 Datasheet, PDF (3/3 Pages) Powersem GmbH – Diode Modules

Circuit
B6
3 x PSKD 72
Fig. 5 Three phase rectifier bridge:
Power dissipation versus direct
output current and ambient
temperature
Fig. 6 Transient thermal impedance
junction to case (per diode)
R_thJC for various conduction angles d:
d
DC
180°
120°
60°
30°
R_thJC (K/W)
0.35
0.37
0.39
0.43
0.47
Constants for Z_thJC calculation:
i
R_thi (K/W)
t_i (s)
1
0.013
0.0014
2
0.072
0.062
3
0.265
0.375
Fig. 7 Transient thermal impedance
junction to heatsink (per diode)
R_thJK for various conduction angles d:
d
DC
180°
120°
60°
30°
R_thJK (K/W)
0.55
0.57
0.59
0.63
0.67
Constants for Z_thJK calculation:
i
R_thi (K/W)
t_i (s)
1
0.013
0.0014
2
0.072
0.062
3
0.265
0.375
4
0.2
1.32
POWERSEM GmbH, Walpersdorfer Str. 53
 2003 POWERSEM reserves the right to change limits, test conditions and dimensions
D - 91126 Schwabach
Phone: 09122 - 9764 - 0 FAX: 09122 - 9764 - 20