PTC thermistors for overcurrent
protection in telecom applications
Telecom Pair Protector (TPP), SMD
Series/Type:
Date: January 2016
© EPCOS AG 2016. Reproduction, publication and dissemination of this publication, enclosures hereto and the
information contained therein without EPCOS' prior express consent is prohibited.
EPCOS AG is a TDK Group Company.
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
Internal circuit
Options
Alternative tolerances and resistances on request
Delivery mode
T15** and T16**: 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
1)
V
F,max
245 V AC
Max. operating voltage V
max
135 V AC
Operating temperature range (V = 0) T
op
20/+125 °C
Operating temperature range (V = V
max
) T
op
0/+70 °C
Insulating test voltage between PTC1 and PTC2 V
ins
> 3 kV
Resistance matching in one housing R
2
R
1
< 1.0
1) The maximum fault voltage V
F,max
is the highest voltage that is permitted to be applied across the PTC thermistor in protection mode.
Overcurrent protection for telecom
Telecom pair protector (TPP), SMD
Page 2 of 13Please read Cautions and warnings and
Important notes at the end of this document.
Electrical specifications and ordering codes
Type
R
R
R
R
%
I
R
@ 25 °C
mA
I
R
@ 70 °C
mA
I
S
@ 25 °C
mA
I
Smax
A
Approvals Ordering code
Component height max. 7.3
T1535 35 +15/20 100 65 210 2.5 B59535T1120A262
T1550 50 ±15 80 50 170 2.5 B59550T1120A262
Component height max. 8.3
T1509 9 ±10 180 120 360 1.0 B59509T1120A062
T1535 35 +15/20 110 70 230 4.6 B59535T1120A062
T1550 50 ±15 90 60 190 2.5 B59550T1120A062
Component height max. 9.9
T1635 35 +15/20 110 70 230 4.6 X B59635T1120A062
T1650 50 ±15 90 60 190 2.5 X B59650T1120A062
Component height max. 10.5
T1735 35 +15/20 110 70 230 4.6 X B59735T1120A062
T1735 35 +15/20 130 95 270 3.6 B59735T1150A062
T1750 50 ±15 90 60 190 2.5 X B59750T1120A062
Component height max. 11.5
T1835 35 +15/20 115 75 240 4.6 X B59835T1120A062
Switching times and ordering codes
Type
t
S
(typ.)
@ I
Smax
s
t
S
(typ.)
@ 1 A
s
t
S
(typ.)
@ 500 mA
s
Ordering code
Component height max. 7.3
T1535 0.07 0.4 1.7 B59535T1120A262
T1550 0.05 0.3 1.2 B59550T1120A262
Component height max. 8.3
T1509 4 4 20 B59509T1120A062
T1535 0.04 0.8 3.4 B59535T1120A062
T1550 0.1 0.6 2.4 B59550T1120A062
Component height max. 9.9
T1635 0.04 0.8 3.4 B59635T1120A062
T1650 0.1 0.6 2.4 B59650T1120A062
Component height max. 10.5
T1735 0.04 0.8 3.4 B59735T1120A062
T1735 0.1 1.1 4.5 B59735T1150A062
T1750 0.1 0.6 2.4 B59750T1120A062
Component height max. 11.5
T1835 0.06 1.1 4.5 B59835T1120A062
Overcurrent protection for telecom
Telecom pair protector (TPP), SMD
Page 3 of 13Please read Cautions and warnings and
Important notes at the end of this document.

B59550T1120A262

Mfr. #:
Manufacturer:
EPCOS / TDK
Description:
Thermistors - PTC 1550A 120 A262 5X2 PTC Thermisto
Lifecycle:
New from this manufacturer.
Delivery:
DHL FedEx Ups TNT EMS
Payment:
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