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ITU-T为C.O端(K20),用户终端(K21)和网络(K45)设备提供防护标准.并推荐自复式电路保护方案.
 半导体浪涌保护元件:
SiBar半导体浪涌保护元件(LT电子)
|
型號
|
斷態電壓
|
轉折電壓
|
通態壓降
|
維持電流
|
極間電容
|
|
VDRM
V
|
IDRM
μA
|
VS
V
|
IS
mA
|
VT
V
|
IT
A
|
IH
mA
|
CO
pF
|
|
|
MAX
|
TYPE
|
MAX
|
MAX
|
|
MIN
|
MAX
|
|
BS0640K
|
58
|
5
|
77
|
800
|
4
|
1
|
150
|
85
|
|
BS0720K
|
65
|
5
|
88
|
800
|
4
|
1
|
150
|
85
|
|
BS0800K
|
75
|
5
|
98
|
800
|
4
|
1
|
150
|
85
|
|
BS1800K
|
160
|
5
|
220
|
800
|
4
|
1
|
150
|
38
|
|
BS2300K
|
190
|
5
|
260
|
800
|
4
|
1
|
150
|
38
|
|
BS2600K
|
220
|
5
|
300
|
800
|
4
|
1
|
150
|
38
|
|
BS3100K
|
275
|
5
|
350
|
800
|
4
|
1
|
150
|
35
|
|
BS3500K
|
320
|
5
|
400
|
800
|
4
|
1
|
150
|
35
|
|
|