參數(shù)資料
型號: MDK710-26N1
廠商: WESTCODE SEMICONDUCTORS LTD
元件分類: 整流器
英文描述: 1198 A, 2600 V, SILICON, RECTIFIER DIODE
文件頁數(shù): 5/9頁
文件大?。?/td> 335K
代理商: MDK710-26N1
IXYS
Diode Module Types MD#710-22N1 to MD#710-26N1
Rating Report. Types MD#710-22N1 and MD#710-26N1 Issue 1
Page 5 of 9
May, 2008
5.3 D.C. Thermal Impedance Calculation
=
=
n
p
t
p
t
p
e
r
1
τ
Where p = 1 to n and:
n = number of terms in the series
t = Duration of heating pulse in seconds
rt = Thermal resistance at time t
rp = Amplitude of pth term
τp = Time Constant of rth term
The coefficients for this device are shown in the table below:
D.C.
Term
123
4
5
rp
1.37×10
-3
4.86×10
-3
0.0114
0.0223
0.0221
τp
7.6×10
-4
8.6×10
-3
0.101
0.56
3.12
6.0 Reverse recovery ratings
(i) Qra is based on 50% IRM chord as shown in Fig. 1
Fig. 1
(ii) Qrr is based on a 150 s integration time i.e.
=
s
rr
dt
i
Q
150
0
.
(iii)
2
1
t
Factor
K
=
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