PTC thermistors for overcurrent
protection in telecom applications
Leaded disks
Series/Type:
Date:
April 2014
© EPCOS AG 2014. Reproduction, publication and dissemination of this publication, enclosures hereto and the
information contained therein without EPCOS' prior express consent is prohibited.
Overcurrent protection for telecom
Leaded disks
Applications
Overcurrent protection for telecom applications
Suitable for line card applications e.g. POTS, access networks,
customer premises equipment (CPE) or integrated voice data (IVD)
Features
Compliant with ITU-T standards
basic-level lightning surges (10/700 µs)
basic-level power induction (600 V, 1 A, 0.2 s)
power contact criteria A/B (230 V, 15 min.)
Matching available with narrow resistance tolerance
Tight resistance matching maintained after switching
Negligible resistance drift after soldering or switching
Marking: Type, manufacturer's logo, reference temperature in
°C
and date code YYWW
(except B59076B1*, B59012B1*, B59084B1*, B59045B1*, B59069B1*)
UL approval to UL 1434 for B59184* (file number E69802)
RoHS-compatible
Options
Alternative tolerances and resistances on request
Delivery mode
Cardboard tape, 360-mm reel, taping to IEC 60286-2 or untaped on cardboard strips
General technical data
Maximum fault voltage
Max. operating voltage
Operating temperature range
Operating temperature range
V
F,max
V
max
T
op
T
op
245
135
20/+125
0/+70
V AC
V AC
°C
°C
(V = 0)
(V = V
max
)
Please read
Cautions and warnings
and
Important notes
at the end of this document.
Page 2 of 11
Overcurrent protection for telecom
Leaded disks
Electrical specifications and ordering codes
Type
R
R
∆R
R
R
25,match
(per packing unit)
R
1
R
2 max
%
Ω
±15
0.8
±17
No
±20
1.0
±15
No
+10/ 20 0.5
±15
1.0
±15
No
±15
1.0
±15
3.0
I
R
@
25°C
mA
140
185
140
90
100
90
85
65
90
I
R
@
70°C
mA
65
110
95
35
65
60
55
45
60
I
S
@
25°C
mA
300
440
340
210
240
210
200
150
210
I
Smax
Ordering code
B1048
C1098
B1076
B1012
B1084
B1045
B1069
C1184
C1173
Ω
6
6
10
12
20
25
25
50
55
A
2.5
3.0
1.0
1.0
3.0
3.0
0.9
4.0
2.5
B59048B1080B151
B59098C1100B051
B59076B1120B153
B59012B1080B070
B59084B1120A151
B59045B1120B151
B59069B1120A051
B59184C1120B153
B59173C1130A151
Note:
Please note that type C1173 with ordering code B59173C1130A151 has additional tests
and test conditions.
Switching times and ordering codes
Type
R
R
Ω
6
6
10
12
20
25
25
50
55
t
S
(typ.)
@ I
Smax
s
0.5
1.5
1.8
1.0
0.1
0.08
0.4
0.06
0.09
t
S
(typ.)
@1A
s
3.3
14.0
1.8
1.0
0.9
0.7
--
0.8
1.3
t
S
(typ.)
@ 500 mA
s
15.0
70.0
8.0
3.8
3.8
3.0
1.4
3.1
5.0
Ordering code
B1048
C1098
B1076
B1012
B1084
B1045
B1069
C1184
C1173
B59048B1080B151
B59098C1100B051
B59076B1120B153
B59012B1080B070
B59084B1120A151
B59045B1120B151
B59069B1120A051
B59184C1120B153
B59173C1130A151
Please read
Cautions and warnings
and
Important notes
at the end of this document.
Page 3 of 11
Overcurrent protection for telecom
Leaded disks
Dimensional drawings
1)
Figure 1
Kinked leads, uncoated
Figure 2
Straight leads, uncoated
Figure 3
Kinked leads, coated
Figure 4
Kinked leads, uncoated
1) The lead length stated in the dimensional drawing refers to the untaped version. For dimensions of the taped version, see chapter
"Taping and packing".
Please read
Cautions and warnings
and
Important notes
at the end of this document.
Page 4 of 11
Overcurrent protection for telecom
Leaded disks
Dimensions in mm
Type
B1048
C1098
B1076
B1012
B1084
B1045
B1069
C1184
C1173
R
R
Ω
6
6
10
12
20
25
25
50
55
w
max
mm
8.0
13.0
6.6
6.0
6.6
6.6
5.2
9.0
8.0
h
max
mm
12.0
17.0
7.5
10.0
7.5
9.5
5.2
12.5
11.0
th
max
mm
5.0
5.0
4.0
4.0
4.0
4.0
3.5
4.5
5.5
Figure
Figure 1
Figure 3
Figure 2
Figure 1
Figure 2
Figure 4
Figure 2
Figure 3
Figure 3
Packaging
Taped on reel
Taped on reel
Taped on reel
Cardboard strips
Taped on reel
Taped on reel
Taped on reel
Taped on reel
Taped on reel
Ordering code
B59048B1080B151
B59098C1100B051
B59076B1120B153
B59012B1080B070
B59084B1120A151
B59045B1120B151
B59069B1120A051
B59184C1120B153
B59173C1130A151
Figure 1: Kinked leads, uncoated
Figure 2: Straight leads, uncoated
Figure 3: Kinked leads, coated
Figure 4: Kinked leads, uncoated
For further details see "Dimensional drawings".
Please read
Cautions and warnings
and
Important notes
at the end of this document.
Page 5 of 11
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