LCP12
STMicroelectronics — November 2011

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. These voltage surges can be caused by lightning strikes or by electromagnetic coupling or direct contact with AC power lines.
- Peak pulse current: 45A (10/1000us), 75A (5/310us)
- Compliant with standards: GR-1089, ITU-T-K20/K21, ITU-T-K20, VDE0433, VDE0878, IEC 61000-4-5, TIA-968-A, TIA-968-A
- Wide firing voltage range: -120V to +120V
- Low gate triggering current: IG = 5mA maximum
- Holding current: 150mA minimum
- housed in the industry-standard SO-8 wide package
- Integrates thyristors to protect against positive and negative surges on two wires, and provides a higher level of protection than its predecessor, the LCP02
- 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 -120V to +120V, the LCP12 is compatible with most dual battery-voltage SLICs in use today
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