N0992YS020 westcode, N0992YS020 Datasheet - Page 4

• Manufacturer Part Number: N0992YS020
• Description: Phase Control Thyristor
• Manufacturer: westcode

WESTCODE
The on-state characteristic I
(i)
(ii)
The constants, derived by curve fitting software, are given below for both hot and cold characteristics. The
resulting values for V
plotted.
Where p = 1 to n, n is the number of terms in the series and:
Data Sheet Issue 1. Types N0992YS020 to N0992YS060.
Term
Term
R
R
p
p
p
p
5.2 Calculating V
5.3 D.C. Thermal Impedance Calculation
t = Duration of heating pulse in seconds.
r
r
t
p
p
= Thermal resistance at time t.
= Amplitude of p
= Time Constant of r
the well established V
a set of constants A, B, C, D, forming the coefficients of the representative equation for V
terms of I
0.06157697
Positive development in power electronics
2.136132
0.12000552
0.3391689
1
T
given below:
V
1
T
T
T
agree with the true device characteristic over a current range which is limited to that
using ABCD Coefficients
th
term.
T
A
th
vs. V
o
8.431182×10
term.
and r
1.212898
T
B
, on page 7 is represented in two ways;
s
2
tangent used for rating purposes and
r
ln
A
B
C
D
0.01609235
0.09405764
t
D.C. Double Side Cooled
D.C. Single Side Cooled
I
125°C Coefficients
-3
2
T
p
p
n
1
3.061740×10
r
Page 4 of 9
-0.01514247
-0.1754018
p
0.2037886
C
0.01031315
0.1512408
1
I
3
T
e
-4
8.812673×10
p
t
0.12195269
D
3
0.01613806
I
0.04244
T
-3
4
N0992YS020 to N0992YS060
3.659765×10
2.196197×10
5.181088×10
2.889595×10
4
February, 2001
5
-3
-3
T
-3
-3
in