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Vishay BCcomponents
PTC Thermistors, Overload Protection For Telecommunication
FEATURES
PRIMARY PROTECTION (OPTIONAL) +θ PTC subscriber lines +θ SECONDARY PROTECTION +θ PTC
voltage clamp +θ PTC MDF SUBSCRIBER LOOP INTERFACE CIRCUIT (SLIC) OR TRANSFORMER
• • • • • • • •
CCB913
Typical telephone line showing where PTC thermistors can be used for overcurrent protection.
Wide resistance range in telecom area 4.
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to 70 Ω Fast protection against power contact faults Withstand high overload currents of up to 10 A High
voltage withstanding capabilities for the larger sized thermistors Good tracking over a wide temperature range for all matched or binned type...