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參數(shù)資料
| 型號： | 232266193147 |
| 廠商： | Vishay Intertechnology,Inc. |
| 元件分類： | 熱敏電阻 |
| 英文描述： | PTC Thermistors, Overload Protection For Telecommunication |
| 中文描述： | PTC熱敏電阻器，超載保護(hù)電信 |
| 文件頁數(shù)： | 1/4頁 |
| 文件大小： | 68K |
| 代理商： | 232266193147 |
PTC Thermistors, Overload Protection
For Telecommunication
2322 66. 9....
Vishay BCcomponents
Document Number: 29070
Revision: 10-Oct-03
For technical questions contact: nlr.europe@vishay.com
www.vishay.com
163
FEATURES
Wide resistance range in telecom area 4... to 70
Fast protection against power contact faults
Withstand high overload currents of up to 10 A
High voltage withstanding capabilities for the larger sized
thermistors
Good tracking over a wide temperature range for all
matched or binned types
UL1434 approved types available (XGPU2)
Excellent stability over extended time
All telecom PTCs are coated with a high temperature
silicon lacquer (UL94V0) to protect them from any harsh
environments and to improve their lifetime.
APPLICATIONS
Main Distribution Frame (MDF)
Central Office Switching (C.O.)
Subscriber Terminal Equipment (T.E.)
Set-top box (S.B.).
MARKING
Clear marking on a grey coated body.
BC and R25 value.
DESCRIPTION
Advanced developments in telephony equipment in recent
years have radically altered the protection requirements for
both exchange and subscriber equipment. The Vishay
BCcomponents range of Positive Temperature Coefficient
(PTC) thermistors includes devices specially designed to
provide overcurrent protection.
CCB913
SUBSCRIBER
LOOP
INTERFACE
CIRCUIT
(SLIC)
OR
TRANSFORMER
voltage
clamp
PTC
PTC
MDF
SECONDARY
PROTECTION
PRIMARY
PROTECTION
(OPTIONAL)
subscriber
lines
+
θ
PTC
+
θ
+
θ
+
θ
Typical telephone line showing where PTC thermistors
can be used for overcurrent protection.
ELECTRICAL DATA AND ORDERING INFORMATION
Notes
1.
2.
MDF: Main Distribution Frame; C.O.: Central Office Switching; T.E.: Subscriber Terminal Equipment; S.B.: Set-top Box.
UL 1434 approved types.
V
MAX.
(V)
NON-TRIP
CURRENT
RESISTANCE
MATCHED
PAIRS
TRIP
CURRENT
MAX.
TRIP TIME
at 25
°
C
APPLICATION
AREA
(1)
COMPATIBILITY
CATALOG
NUMBER
2322 ... .....
I
nt
(mA)
70
100
60
75
70
65
140
140
100
70
100
135
100
100
100
50
70
70
70
175
175
at T
(
°
C)
70
70
70
70
70
85
55
55
40
70
70
95
70
70
70
70
70
70
70
25
25
R
(
25
10
70
33
25
25
16
10
20
25
10
8
16
10
10
50
35
25
25
10
10
25
)
TOL
(%)
20
±
20
+10/
±
±
±
±
±
+10/
±
±
±
±
±
±
±
±
±
±
±
±
I
t
(mA)
200
250
180
150
200
200
270
270
220
175
450
400
250
270
270
140
600
170
170
400
400
at T
(
°
C)
25
25
25
10
25
25
25
25
25
25
0
25
25
25
25
25
0
25
25
25
25
t
t
(s)
2.5
3
60
1.2
20
3.40
8
8
1
1.3
0.30
6
2.0
4.0
4.0
1
3
4
8
7
7
at I
(mA)
1000
1000
220
1000
400
650
1000
1000
1000
1000
8000
1000
1000
1000
1000
1000
1000
700
700
1000
1000
t
220
230
245
245
245
245
245
245
250
250
250
285
300
350
350
600
600
600
600
600
600
±
1
1
no
±
5%
no
2%
no
no
1
1
no
0.5
no
no
1
1
3
2%
2%
0.5
no
C.O.
K20/21
K20/21
661 93048
661 93147
661 93025
661 93037
661 93175
661 93142
662 93081
662 93074
661 93118
661 93148
663 93025
661 93078
661 93121
661 93124
661 93146
661 93135
661 93056
661 93139
662 93129
662 93114
662 93131
MDF; ISDN
C.O.
C.O.
C.O.
C.O.
T.E.
T.E.
MDF
MDF; C.O.
T.E.
MDF; ISDN
MDF; T.E.
T.E.; S.B.
C.O.
C.O.
C.O.
C.O.
C.O.
C.O.
T.E.; S.B.
15
20
15
20
20
20
20
20
25
25
20
20
20
20
20
20
20
20
K20/21; FTCSE I31-24
K20/21
K20/21; FTCSE I31-21
K20/21; FTCSE I31-21
K20/21
K20/21
K20/21
K20/21
K20/21
K20/21
K20/21
K20/21
K20/21
K20/21
UL1459/GR1089
UL1459/GR1089
20
(2)
(2)
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