New thyristor array meets future standards in China for SLIC tip and ring protection

New thyristor array meets future standards in China for SLIC tip and ring protection

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By eeNews Europe

ST’s LCP12 IC protects against high-voltage surges on the tip and ring connections of Subscriber Line Interface Cards (SLICs), which connect telecom local loops to the access network. The voltage surges can be caused by lightning strikes or by electromagnetic coupling or direct contact with AC power lines.      

The LCP12 provides the protection specified by telecom standards used throughout the Americas, Europe and the Far East, such as the GR-1089 CORE standards, ITU-T-K.20/21 covering operator and customer-premises equipment, and the similar Mainland China YD/T standards. As the only protection device rated for surge currents up to 75 A for the 5/310 µs waveshape at 4 kV, the LCP12 is uniquely able to comply with forthcoming revisions to the Chinese standards.     

The new device integrates thyristors to protect against positive and negative surges on two wires, and provides a higher level of protection than its predecessor, the LCP02. Moreover, the LCP12 is fully compatible with existing equivalent devices, hence providing a drop-in upgrade capable of satisfying the new tougher protection standards going forward. With its wide firing-voltage range, from -120 V to +120 V, the LCP12 is compatible with most dual battery-voltage SLICs in use today.     

The LCP12 is housed in the industry-standard SO-8 wide package and is available to qualified customers, priced from $1.196, with a minimum order quantity of 1000 pieces.     

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