Datasheet

© 2013 IXYS All rights reserved
5 - 5
MCC 255
MCD 255
IXYS reserves the right to change limits, test conditions and dimensions.
20130813c
10
-3
10
-2
10
-1
10
0
10
1
10
2
0.00
0.05
0.10
0.15
0.20
0.25
0.30
P
tot
[W]
0 25 50 75 100 125 1500 100 200 300 400 500
0
500
1000
1500
2000
10
-3
10
-2
10
-1
10
0
10
1
10
2
0.00
0.05
0.10
0.15
0.20
0.25
DC
180°
120°
60°
30°
R
thKA
K/W
0.03
0.06
0.1
0.15
0.2
0.3
0.4
Circuit
W3
3xMCD255
3xMCC255 or
I
RMS
[A] T
A
[°C]
t [s]
Z
thJC
[K/W]
t [s]
Z
thJK
[K/W]
Fig. 7 Three phase AC-controller: Power dissipation versus
R
MS
output current and ambient temperature
Fig. 8 Transient thermal impedance junction to case (per thyristor/diode)
Fig. 9 Transient thermal impedance junction to heatsink (per thyristor/diode)
DC
180°
120°
60°
30°
R
thJC
for various conduct. angles d:
d R
thJC
(K/W)
DC 0.139
180° 0.148
120° 0.156
60° 0.176
30° 0.214
Constants for Z
thJC
calculation:
i R
thi
(K/W) t
i
(s)
1 0.0066 0.00054
2 0.0358 0.098
3 0.0831 0.54
4 0.0129 12
R
thJK
for various conduct. angles d:
d R
thJK
(K/W)
DC 0.179
180° 0.188
120° 0.196
60° 0.216
30° 0.254
Constants for Z
thJK
calculation:
i R
thi
(K/W) t
i
(s)
1 0.0066 0.00054
2 0.0358 0.0980
3 0.0831 0.540
4 0.0129 1200
5 0.0400 12