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SiBar Thyristor Surge Protectors Overview


SiBar thyristor surge protection devices Find in Catalog help protect sensitive telecom and datacom euipment from damage caused by overvoltage events, including lightning transients. The devices operate as shunt devices in response to a surge that exceeds the breakover voltage. When the voltage exceeds the breakover voltage, the SiBar device "folds back," creating a low-impedance path, effectively shorting out the overvoltage condition.

Compliant with major standards such as GR-1089 Core, ITU-T-K20/K21, IEC61000-4-5 and FCC part 68, and UL1950, SiBar devices provide fast, bi-directional protection on communications network equipment, including analog and digital linecards, xDSL and ISDN modems, set-top boxes, T1 equipment, Voice over IP (VoIP) and Power over Ethernet (PoE) equipment.

The SiBar thyristor's low on-state voltage allows for smaller form factor devices - as compared with clamping devices of comparable energy handling capability, and their relatively low capacticance makes them suitable for high data rate circuits.



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