Solid state SIDACtor® protection thyristors protect telecommunications equipment, data cables, and switching devices from transient voltage surges. Since the silicon diodes for alternating current get used in many ways, Littelfuse makes what we call connectivity SIDACtors optimized for specific applications. For outdoor equipment prone to lightning strikes, we offer high-exposure surge protection thyristors. We also produce more sensitive surge protective devices designed for use with subscriber line interface circuits (SLICs), line circuit access switches (LCASs), and broadband relays.
Wide range of Vdrm T-R ratings up to 600 V
Wide range of Vs T-R ratings up to 700 V
Off-state capacitance ratings generally below 50 pF
Bidirectional
Meet international standards, including TIA-968, ITU K.20/21, GR 1089 Inter-building, GR 1089 Intra-building, IEC 61000-4-5, and YD/T 1082
Lead-free and RoHS compliant
Small footprints
Voltage surges withing rated capacity will not degrade a device’s performance
Most version fail as short circuits when voltage surges exceed the device’s capacity
Connectivity SIDACtor® Protection Thyristors Parts