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參數(shù)資料
| 型號： | IXBOD1-21R |
| 廠商： | IXYS CORP |
| 元件分類： | 二極管&整流器 |
| 英文描述： | 2100 V, RVS BLOCKING BOD |
| 文件頁數(shù)： | 6/8頁 |
| 文件大小： | 252K |
| 代理商： | IXBOD1-21R |
H - 6
2000 IXYS All rights reserved
Application
Protection of thyristors against overvoltages in forward
direction.
V
D
i
BOD
Thyristor
V
BO (TVJ) = VBO, 25°C [1+KT(TVJ - 25°C)]
a. The maximum junction temperature shall be
calculated for a module IXBOD 1 -30R at an
ambient temperature T
a = 60 °C, an exponentially
decaying current I
TM = 40A, a pulsewidth tp = 2 s,
an operating frequency f = 50 Hz and natural
convection. From the diagram Fig. 6 the energy per
pulse is obtained:
E
p1 = 6 x 10
-3
Ws
For a module IXBOD1-30R the number of single
IXBOD elements is:
n = 3
At natural air cooling the thermal resistance junction
to ambient amounts to (Fig.8):
R
thJA = 20K/W
and the unknown temperature can be calculated as:
T
VJmax1
= T
a + n f Ep RthJA + Kp Ep
T
VJmax1 = 60 + 18 + 4.2
= 82.2°C
b. If following these steady-state conditions an
overload for 1 minute occurs with I
TM= 60 A and a
pulse-width tp = 4
s at the same operating
frequency f = 50 Hz, then the resulting maximum
junction temperature is calculating as follows:
T
VJmax2 = TVJmax1 + (Ep2-Ep1) n f ZthJA(t) + Kp (Ep2-Ep1)
The diagrams Fig. 11 and Fig. 8 show
E
p2= 14x10
-3
Ws
Z
thJA(t = 1min) = 12K/W
From what follows:
T
VJmax2 = 82.2 + 14.4 + 5,6 = 102.2 °C
which is allowed because the maximum admissible
junction temperature T
VJM = 125 °C.
Calculation example
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相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| IXBOD1-21RD | 功能描述:硅對稱二端開關(guān)元件 1 Amps 2100V RoHS:否 制造商:Bourns 轉(zhuǎn)折電流 VBO:40 V 最大轉(zhuǎn)折電流 IBO:800 mA 不重復(fù)通態(tài)電流: 額定重復(fù)關(guān)閉狀態(tài)電壓 VDRM:25 V 關(guān)閉狀態(tài)漏泄電流（在 VDRM IDRM 下）: 保持電流（Ih 最大值）:50 mA 開啟狀態(tài)電壓:5 V 關(guān)閉狀態(tài)電容 CO:120 pF 最大工作溫度:+ 150 C 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:DO-214AA |
| IXBOD1-22D | 制造商:未知廠家 制造商全稱:未知廠家 功能描述:SINGLE UNIDIRECTIONAL BREAKOVER DIODE|2.25KV V(BO) MAX|15MA I(S) |
| IXBOD1-22R | 功能描述:硅對稱二端開關(guān)元件 1 Amps 2200V RoHS:否 制造商:Bourns 轉(zhuǎn)折電流 VBO:40 V 最大轉(zhuǎn)折電流 IBO:800 mA 不重復(fù)通態(tài)電流: 額定重復(fù)關(guān)閉狀態(tài)電壓 VDRM:25 V 關(guān)閉狀態(tài)漏泄電流（在 VDRM IDRM 下）: 保持電流（Ih 最大值）:50 mA 開啟狀態(tài)電壓:5 V 關(guān)閉狀態(tài)電容 CO:120 pF 最大工作溫度:+ 150 C 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:DO-214AA |
| IXBOD1-22RD | 功能描述:硅對稱二端開關(guān)元件 1 Amps 2200V RoHS:否 制造商:Bourns 轉(zhuǎn)折電流 VBO:40 V 最大轉(zhuǎn)折電流 IBO:800 mA 不重復(fù)通態(tài)電流: 額定重復(fù)關(guān)閉狀態(tài)電壓 VDRM:25 V 關(guān)閉狀態(tài)漏泄電流（在 VDRM IDRM 下）: 保持電流（Ih 最大值）:50 mA 開啟狀態(tài)電壓:5 V 關(guān)閉狀態(tài)電容 CO:120 pF 最大工作溫度:+ 150 C 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:DO-214AA |
| IXBOD1-23D | 制造商:未知廠家 制造商全稱:未知廠家 功能描述:SINGLE UNIDIRECTIONAL BREAKOVER DIODE|2.35KV V(BO) MAX|15MA I(S) |
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