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| 型号： | MCA500-14IO1 |
| 厂商： | IXYS CORP |
| 元件分类： | 晶闸管 |
| 中文描述： | 1294 A, 1400 V, SCR |
| 封装： | MODULE-7 |
| 文件页数： | 6/11页 |
| 文件大小： | 447K |
| 代理商： | MCA500-14IO1 |
IXYS
Thyristor/Diode Module Types M##500-12io1 and M##500-18io1
Rating Report. Types M##500-12io1 and M##500-18io1 Issue 2
Page 4 of 11
March, 2005
8.0 Computer Modelling Parameters
8.1 Thyristor Dissipation Calculations
T
AV
T
AV
r
ff
W
r
ff
V
I
+
=
2
0
2
4
and:
K
j
th
AV
T
R
T
W
=
=
max
Where VT0 = 0.85 V, rT = 0.27 m
for the thyristor and VT0 = 0.72 V, rT = 0.143 m for the diode.
Rth = Supplementary thermal impedance, see table below and
ff = Form factor, see table below.
Supplementary Thermal Impedance
Conduction Angle
30°
60°
90°
120°
180°
270°
d.c.
Square wave
0.07067
0.06791 0.06629
0.06525 0.06395 0.06277
0.062
Sine wave
0.06767
0.06536 0.06408
0.0633
0.062
Form Factors
Conduction Angle
30°
60°
90°
120°
180°
270°
d.c.
Square wave
3.464
2.449
2
1.732
1.414
1.149
1
Sine wave
3.98
2.778
2.22
1.879
1.57
8.2 Calculating thyristor VT using ABCD Coefficients
The on-state characteristic IT vs. VT, on page 6 is represented in two ways;
(i) the well established VT0 and rT tangent used for rating purposes and
(ii) a set of constants A, B, C, D, forming the coefficients of the representative equation for VT in terms of
IT given below:
()
T
I
D
I
C
I
B
A
V
+
+
+
=
ln
The constants, derived by curve fitting software, are given below for both hot and cold characteristics. The
resulting values for VT agree with the true device characteristic over a current range, which is limited to
that plotted.
25°C Coefficients
125°C Coefficients
A
0.7860338
A
-0.099137717
B
9.929062×10
-3
B
0.1987038
C
1.94704×10
-4
C
4.23812×10
-4
D
7.409213×10
-3
D
-0.01453705
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| MCA500-22io1 | 功能描述:分立半导体模块 500 Amps 2200V RoHS:否 制造商:Infineon Technologies 产品:Thyristor Power Modules 类型:Phase Controls 安装风格:Screw 封装 / 箱体:DT61 封装: |
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