PSKT312 Datasheet, PDF (4/4 Pages) Powersem GmbH – Thyristor/Diode Modules

3000
W
2500
P_tot
2000
1500
1000
500
0
0
Circuit
W3
3³x^xM^PSC^KC^H3³1¹2² o^orr
3³x^xM^PSC^KD^T3³1¹2²
R_thKA K/W
0.02
0.04
0.07
0.1
0.15
0.2
0.3
Fig. 7 Three phase AC-controller:
Power dissipation versus RMS
output current and ambient
temperature
200
400
600 A 0
25
50
75
100 125 °C 150
I_RMS
T_A
0.20
Fig. 8 Transient thermal impedance
K/W
junction to case (per thyristor or
diode)
0.15
Z_thJC
0.10
0.05
R_thJC for various conduction angles d:
d
R_thJC (K/W)
DC
0.120
180°
0.128
30°
120°
0.135
60°
60°
0.153
120°
180°
30°
0.185
DC
Constants for Z_thJC calculation:
i
R_thi (K/W)
t_i (s)
0.00
1
0.0058
0.00054
10^-3
10^-2
10^-1
10⁰
10¹
s
10²
2
0.031
0.098
t
3
0.072
0.54
4
0.0112
12
0.25
Fig. 9 Transient thermal impedance
junction to heatsink (per thyristor
K/W
or diode)
0.20
Z_thJK
0.15
0.10
0.05
R_thJK for various conduction angles d:
d
R_thJK (K/W)
DC
0.160
180°
0.168
120°
0.175
30°
60°
120°
60°
0.193
30°
0.225
180°
DC
Constants for Z_thJK calculation:
i
R_thi (K/W)
t_i (s)
0.00
1
0.0058
0.00054
10^-3
10^-2
10^-1
10⁰
10¹
s
10²
2
0.031
0.098
t
3
0.072
0.54
4
0.0112
12
5
0.04
12
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D - 91126 Schwabach
Phone: 09122 - 9764 - 0 FAX: 09122 - 9764 - 20