PTC thermistors for overcurrent
protection in telecom applications
Telecom Pair Protector (TPP), SMD
Series/Type:
Date:
March 2013
The following products presented in this data sheet are being withdrawn.
Ordering Code
B59875T1120A062
Substitute Product
B59850T1120A062
or
B59970T1100A062
B59805T1080A062
or
B59510T1120A062
Date of
Withdrawal
2013-05-03
Deadline Last
Orders
2014-06-01
Last Shipments
2014-09-01
B59810T1120A062
2013-05-03
2014-06-01
2014-09-01
For further information please contact your nearest EPCOS sales office, which will also support
you in selecting a suitable substitute. The addresses of our worldwide sales network are
presented at www.epcos.com/sales.
© EPCOS AG 2013. 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
Telecom pair protector (TPP), SMD
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
Two resistance-matched PTCs in a plastic housing
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.)
Compliant with GR-1089 AC power contact 120 V, 25 A, 15
min.
Suitable for continuous connection to mains voltages of
110/230 V AC in tripped (high-ohmic) condition
Housing material to UL94-V0
UL approval to UL 1434 (file number E69802) for selected
types
Tight resistance matching maintained after switching
Negligible resistance drift after reflow soldering or switching
Marked with manufacturer's logo, type designation and date
code
RoHS-compatible
Options
Alternative tolerances and resistances on request
Internal circuit
Delivery mode
T15**: Blister tape, 330-mm reel with 16-mm tape, taping to IEC 60286-3
T17** and T18**: Blister tape, 380-mm reel with 24-mm tape, taping to IEC 60286-3
General technical data
Maximum fault voltage
Max. operating voltage
Operating temperature range
Operating temperature range
Insulating test voltage between PTC1 and PTC2
Resistance matching in one housing
Resistance matching in one housing
Resistance matching in one housing
V
F,max
V
max
T
op
T
op
V
ins
R
2
R
1
R
2
R
1
R
2
R
1
245
135
20/+125
0/+60
>3
< 0.5
< 1.0
< 2.0
V AC
V AC
°C
°C
kV
Ω
Ω
Ω
(V = 0)
(V = V
max
)
for R
R
≤
4.75
Ω
for R
R
≤
50
Ω
for R
R
= 75
Ω
Please read
Cautions and warnings
and
Important notes
at the end of this document.
Page 2 of 13
Overcurrent protection for telecom
Telecom pair protector (TPP), SMD
Electrical specifications and ordering codes
Type
R
R
Ω
∆R
R
%
I
R
I
R
I
S
I
Smax
@ 25
°C
@ 70
°C
@ 25
°C
mA
mA
mA
A
70
60
120
120
85
85
70
60
70
120
85
70
60
40
230
190
360
360
260
260
230
190
370
360
260
230
190
150
2.5
2.5
1.0
1.0
2.8
2.8
4.6
2.5
1.0
1.0
2.8
4.6
2.5
2.5
Approvals
Ordering code
Component height max. 7.3
T1535 35
+15/ 20 110
T1550 50
±15
90
Component height max. 8.3
T1509 9
±10
180
T1510 10
±20
180
T1525 25
±20
130
Component height max. 10.5
T1725 25
±20
130
T1735 35
+15/ 20 110
T1750 50
±15
90
Component height max. 11.5
T1805 4.75 +15/ 20 160
T1810 10
±20
180
T1825 25
±20
130
T1835 35
+15/ 20 110
T1850 50
±15
90
T1875 75
±20
70
B59535T1120A262
B59550T1120A262
B59509T1120A062
B59510T1120A062
B59525T1120A062
B59725T1120A062
B59735T1120A062
B59750T1120A062
B59805T1080A062
B59810T1120A062
B59825T1120A062
B59835T1120A062
B59850T1120A062
B59875T1120A062
X
X
X
X
X
X
Please read
Cautions and warnings
and
Important notes
at the end of this document.
Page 3 of 13
Overcurrent protection for telecom
Telecom pair protector (TPP), SMD
Switching times and ordering codes
Type
t
S
(typ.)
@ I
Smax
s
t
S
(typ.)
@1A
s
t
S
(typ.)
@ 500 mA
s
1.6
1.1
20
16
6
4
3.4
2.4
20
19.0
6.5
4.5
3.1
2.6
Ordering code
Component height max. 7.3
T1535
0.07
0.4
T1550
0.05
0.3
Component height max. 8.3
T1509
4
4
T1510
3.6
3.6
T1525
0.2
1.4
Component height max. 10.5
T1725
0.3
1.1
T1735
0.04
0.8
T1750
0.1
0.6
Component height max. 11.5
T1805
4
4
T1810
3.8
3.8
T1825
0.2
1.5
T1835
0.06
1.1
T1850
0.13
0.8
T1875
0.12
0.7
B59535T1120A262
B59550T1120A262
B59509T1120A062
B59510T1120A062
B59525T1120A062
B59725T1120A062
B59735T1120A062
B59750T1120A062
B59805T1080A062
B59810T1120A062
B59825T1120A062
B59835T1120A062
B59850T1120A062
B59875T1120A062
Please read
Cautions and warnings
and
Important notes
at the end of this document.
Page 4 of 13
Overcurrent protection for telecom
Telecom pair protector (TPP), SMD
Internal circuit
Dimensional drawings in mm
For type T1509, T1510 and T1525
Solder pad
For type T1535 and T1550
Solder pad
Please read
Cautions and warnings
and
Important notes
at the end of this document.
Page 5 of 13
Analog electronics
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