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參數(shù)資料
| 型號(hào)： | N2367MK220 |
| 廠商： | WESTCODE SEMICONDUCTORS LTD |
| 元件分類： | 晶閘管 |
| 英文描述： | 4642 A, 2200 V, SCR |
| 封裝： | WESPACK-4 |
| 文件頁(yè)數(shù)： | 7/11頁(yè) |
| 文件大小： | 272K |
| 代理商： | N2367MK220 |
WESTCODE
WESTCODE An IXYS Company
Wespack Phase Control Thyristor Types N2367MK200 to N2367MK220
Provisional Data Sheet. Types N2367MK200 to N2367MK220 Issue 1
Page 5 of 11
July, 2005
8.3 D.C. Thermal Impedance Calculation
∑
=
=
n
p
t
p
t
p
e
r
1
τ
Where p = 1 to n, n is the number of terms in the series and:
t = Duration of heating pulse in seconds.
r
t = 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 tables below:
D.C. Double Side Cooled
Term
12
34
rp
9.165875×10
-3
3.090048×10
-3
4.533206×10
-4
1.337550×10
-3
τp
0.3739650
0.1072757
0.02914000
4.430391×10
-3
D.C. Double Side Cooled
Term
12
34
rp
0.02275
4.710571×10
-3
3.064613×10
-3
6.485916×10
-4
τp
2.682304
0.239177
0.06309731
2.003393×10
-3
9.0 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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