MCC501-12IO2 westcode, MCC501-12IO2 Datasheet - Page 4

• Manufacturer Part Number: MCC501-12IO2
• Description: Thyristor/diode Modules
• Manufacturer: westcode

8.0 Computer Modelling Parameters
8.1 Thyristor Dissipation Calculations
Where V
R
ff
8.2 Calculating thyristor V
The on-state characteristic I
the coefficients of the representative equation for V
The constants, derived by curve fitting software, are given below for both hot and cold characteristics.
The resulting values for V
to that plotted.
Rating Report. Types M##501-12io2 and M##501-18io2 Issue 2
I
th
AV
IXYS
= Form factor, see table below.
= Supplementary thermal impedance, see table below and
=
Conduction Angle
Conduction Angle
T0
−
Square wave
Square wave
Sine wave
Sine wave
= 0.85 V, r
V
T
0
+
V
T
T
= 0.30 mΩ.
2
C
D
A
B
0
V
⋅
2
T
T
T
+
ff
using ABCD Coefficients
agree with the true device characteristic over a current range, which is limited
25°C Coefficients
T
Supplementary Thermal Impedance
=
4
2
vs. V
0.0702
0.0677
3.464
⋅
⋅
3.98
-4.020685×10
30°
30°
2.407706×10
r
5.582967×10
A
ff
T
1.27624207
T
+
, on page 6 is represented by a set of constants A, B, C, D, forming
2
⋅
B
r
T
0.0685
0.0673
2.449
2.778
⋅
⋅
60°
60°
W
ln
AV
-4
-4
-3
Form Factors
( )
I
Page 4 of 10
T
T
0.0679
0.0664
in terms of I
2.22
90°
90°
+
2
C
D
A
B
Thyristor/Diode Module Types M##501-12io2 to M##501-18io2
C
and:
125°C Coefficients
⋅
I
0.0668
0.0655
1.732
1.879
T
120°
120°
T
1.873999×10
W
∆
-0.07739233
given below:
+
0.01475625
1.1481301
T
AV
D
=
=
⋅
0.0658
0.0650
T
1.414
180°
180°
1.57
∆
R
j
max
I
T
th
-4
T
−
T
0.0637
1.149
K
270°
270°
0.0620
d.c.
d.c.
1
August, 2011