Active Components
Description
A special case of overcurrent protection is PTC Thermistor for telecommunication applications. Over voltage and current in telephone line can result from the following phenomenons:
* surges due to direct lightning strikes or near to the line plant;
* short-term induction of alternating voltage from adjacent power lines or railway systems , usually caused when these lines or systems develop faults;
* direct contact between power lines and phone lines.
APPLICATION
They provide reversible, selfresetting protection against over current in central office, PBX, remote xDSL exchange, security unit and outdoor telephone.
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DXM High Technology
thermistor, temperature sensor
Address: BLOCK C,SANHE INTERNATIONAL SCIENCE AND TECHNOLOGY ZONE,LAIWUSHAN VILLAGE, DALANG STREET,BAOAN,
Shenzhen, guangdong
China, 518000
Tel: +86-755-61204025
Fax: +86-752-3128969
