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Protection Devices

Ceramic Telephony PTC

Ceramic Positive Temperature Coefficient for FXS Over current protection.

The Ceramic Positive Temperature Coefficient (CPTC) is for over current protection on FXS port for VoIP application. The whole series includes from 10 ohm to 75 ohm to correspond to the impedance matching requirements of the back-end SLIC IC. It can fully compliance the basic & ehance requirements of ITU-T lightning regulation, like K.21, Part 68 and IEC etc.....
Part number Number of Ports / Type Chip Ф Resistance Tolerance Spec
SLC10S Single /DIP Chip Ф 7.5 1.5KV 0.2
SLZ10R Single /DIP Chip Ф 8.5 2.5KV 0.1
SCC100D Single /DIP Chip Ф 8.5 2.5KV 0.1
SCT100D Dual /SMT Chip Ф 7.5 2.5KV 0.2
SCT100F Dual /SMT Chip Ф 8.5 4KV 0.2
SLC25S Single /DIP Chip Ф 6.0 1.5KV 0.2
SLZ25R Single /DIP Chip Ф 7.0 2.5KV 0.1
SLC35S Single /DIP Chip Ф 5.5 1.5KV 0.2
SLT35R Single /DIP Chip Ф 8.0 2.5KV 0.15
SCT35R Single /DIP Chip Ф 8.0 2.5KV 0.2
SCT35D Dual /SMT Chip Ф 7.5 2.5KV 0.2
SCT35F Dual /SMT Chip Ф 8.5 4KV 0.2
SLC50S Single /DIP Chip Ф 5.5 1.5KV 0.2
SLZ50R Single /DIP Chip Ф 7.0 2.5KV 0.1
SLZ50HR Single /DIP Chip Ф 8.0 4KV 0.2
SLZ50MR Single /DIP Chip Ф 8.5 6KV 0.2
SCC500D Single /DIP Chip Ф 8.0 2.5KV 0.1
SCT500D Dual /SMT Chip Ф 7.5 2.5KV 0.2
SCT500F Dual /SMT Chip Ф 8.5 4kV 0.2
SCPTC5.5-50R-20-A Single /DIP Chip Ф 5.5 1.5KV 0.2
SCPTC7.0-50R-20-TR-A Single / SMT Chip Ф 7.0 2KV 0.2
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