PTC thermistors for overcurrent
protection in telecom applications
Telecom Pair Protector (TPP), SMD
Series/Type:
Date: November 2009
EPCOS AG 2009. 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 Internal circuit
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 s)
basic-level power induction (600 V, 1 A, 0.2 s)
power contact criteria A/B (230 V, 15 min.)
Compliant with GR1089 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 R 35
R
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
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
Max. operating voltage V 245 V AC
max
Operating temperature range (V = 0) T 20/+125 C
op
Operating temperature range (V = 230 V) T 0/+70 C
op
Insulating test voltage between PTC1 and PTC2 V > 3 kV
ins
Resistance matching in one housing for R 4.75 R R < 0.5
R 2 1
Resistance matching in one housing for R 50 R R < 1.0
R 2 1
Resistance matching in one housing for R = 75 R R < 2.0
R 2 1
Please read Cautions and warnings and Page 2 of 13
Important notes at the end of this document.