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
Four 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.)
Matching with narrow resistance tolerance
Housing material to UL94-V0
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
Blister tape, 380-mm reel with 24-mm tape, taping to IEC 60286-3
General technical data
Maximum fault voltage 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/+60 °C
Insulating test voltage between PTC1 / PTC2
and PTC3 / PTC4
V
ins
> 0.6 kV
Resistance matching in one housing for R
R
≤ 50 Ω R
2
R
1
< 1.0 Ω
Resistance matching in one housing for R
R
≤ 50 Ω R
4
R
3
< 1.0 Ω
Overcurrent protection for telecom
Telecom quattro protector (TQP), SMD T1450
Page 2 of 9Please read Cautions and warnings and
Important notes at the end of this document.
