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66193139

更新时间: 2024-11-24 00:48:15
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威世 - VISHAY /
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4页 75K
描述
PTC Thermistors, Overload Protection For Telecommunication

66193139 数据手册

 浏览型号66193139的Datasheet PDF文件第2页浏览型号66193139的Datasheet PDF文件第3页浏览型号66193139的Datasheet PDF文件第4页 
2322 66. 9....  
Vishay BCcomponents  
PTC Thermistors, Overload Protection  
For Telecommunication  
FEATURES  
PRIMARY  
PROTECTION  
(OPTIONAL)  
SECONDARY  
PROTECTION  
Wide resistance range in telecom area 4... to 70  
Fast protection against power contact faults  
Withstand high overload currents of up to 10 A  
+θ  
+θ  
High voltage withstanding capabilities for the larger sized  
thermistors  
PTC  
PTC  
SUBSCRIBER  
LOOP  
INTERFACE  
CIRCUIT  
(SLIC)  
OR  
TRANSFORMER  
subscriber  
lines  
voltage  
clamp  
Good tracking over a wide temperature range for all  
matched or binned types  
+θ  
+θ  
UL1434 approved types available (XGPU2)  
Excellent stability over extended time  
PTC  
MDF  
All telecom PTCs are coated with a high temperature  
silicon lacquer (UL94V0) to protect them from any harsh  
environments and to improve their lifetime.  
Typical telephone line showing where PTC thermistors  
can be used for overcurrent protection.  
APPLICATIONS  
Main Distribution Frame (MDF)  
Central Office Switching (C.O.)  
Subscriber Terminal Equipment (T.E.)  
Set-top box (S.B.).  
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.  
MARKING  
Clear marking on a grey coated body.  
BC and R25 value.  
ELECTRICAL DATA AND ORDERING INFORMATION  
MAX.  
TRIP TIME  
NON-TRIP  
CURRENT  
TRIP  
CURRENT  
RESISTANCE  
V
MAX.  
(V)  
CATALOG  
NUMBER  
2322 ... .....  
MATCHED  
PAIRS  
APPLICATION  
AREA(1)  
°
at 25 C  
COMPATIBILITY  
Int  
at T  
R25  
TOL  
(%)  
It  
at T  
(mA) ( C)  
tt  
(s)  
at It  
(mA)  
°
°
(mA) ( C)  
( )  
220  
230  
245  
245  
245  
245  
245  
245  
250  
250  
250  
285  
300  
350  
350  
600  
600  
600  
600  
600  
600  
70  
100  
60  
75  
70  
70  
70  
70  
70  
70  
85  
55  
55  
40  
70  
70  
95  
70  
70  
70  
70  
70  
70  
70  
25  
25  
25  
10  
±20  
±20  
1  
1 Ω  
no  
±5%  
no  
2%  
no  
no  
1 Ω  
1 Ω  
no  
0.5 Ω  
no  
200  
250  
180  
150  
200  
200  
270  
270  
220  
175  
450  
400  
250  
270  
270  
140  
600  
170  
170  
400  
400  
25  
25  
25  
10  
25  
25  
25  
25  
25  
25  
0
25  
25  
25  
25  
25  
0
2.5  
3
1000  
1000  
220  
1000  
400  
C.O.  
MDF; ISDN  
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(2)  
662 93131(2)  
70 +10/15  
60  
1.2  
20  
3.40  
8
8
1
1.3  
33  
25  
25  
16  
10  
±20  
±15  
±20  
±20  
±20  
C.O.  
C.O.  
C.O.  
T.E.  
T.E.  
MDF  
K20/21; FTCSE I31-24  
K20/21  
K20/21; FTCSE I31-21  
K20/21; FTCSE I31-21  
65  
650  
140  
140  
100  
70  
100  
135  
100  
100  
100  
50  
70  
70  
70  
175  
175  
1000  
1000  
1000  
1000  
20 +10/20  
25  
10  
8
±20  
±20  
±25  
±25  
±20  
±20  
±20  
±20  
±20  
±20  
±20  
±20  
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.  
K20/21  
K20/21  
K20/21  
K20/21  
K20/21  
K20/21  
K20/21  
K20/21  
0.30 8000  
6
2.0  
4.0  
4.0  
1
3
4
8
7
1000  
1000  
1000  
1000  
1000  
1000  
700  
700  
1000  
1000  
16  
10  
10  
50  
35  
25  
25  
10  
10  
no  
1 Ω  
1 Ω  
3 Ω  
2%  
2%  
0.5 Ω  
no  
25  
25  
25  
25  
K20/21  
K20/21  
UL1459/GR1089  
UL1459/GR1089  
7
Notes  
1. MDF: Main Distribution Frame; C.O.: Central Office Switching; T.E.: Subscriber Terminal Equipment; S.B.: Set-top Box.  
2. UL 1434 approved types.  
Document Number: 29070  
Revision: 10-Oct-03  
For technical questions contact: nlr.europe@vishay.com  
www.vishay.com  
163  

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