
Connectivity SIDACtor® Protection Thyristors


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
Filters
120onClick
1000onClick
30onClick
800onClick
15onClick
350onClick
50onClick
350onClick
Showing 1 to 12 of 496 Total Results
Part Number | Actions | Package | VDRM T-R (V) | VS T-R (V) | Ipp2x10 | Ipp8x20 | Ipp5x310 | Ipp10x700 | Agency Approvals |
---|
Part Number | Actions | Package | VDRM T-R (V) | VS T-R (V) | Ipp2x10 | Ipp8x20 | Ipp5x310 | Ipp10x700 | Agency Approvals | |
---|---|---|---|---|---|---|---|---|---|---|
Modified DO-214AA | 132 | 215 | 150 | 100 | 100 | |||||
MS-013 | 50 | 80 | 150 | 150 | 75 | 75 | UR | |||
MS-013 | 50 | 80 | 250 | 250 | 100 | 100 | UR | |||
MS-013 | 50 | 80 | 500 | 400 | 200 | 200 | UR | |||
MS-013 | 116 | 154 | 500 | 400 | 200 | 200 | ||||
MS-013 | 270 | 340 | 150 | 150 | 75 | 75 | UR | |||
MS-013 | 270 | 340 | 250 | 250 | 100 | 100 | UR | |||
MS-013 | 270 | 340 | 500 | 400 | 200 | 200 | UR | |||
MS-012 (SOP-8) | 170 | 120 | 170 | 70 | ||||||
MS-012 (SOP-8) | 170 | 120 | 170 | 70 | ||||||
Modified DO-214AA | |-Vref| + |-1.2V| | |-Vref| + |-10V| | 150 | 150 | 75 | UR | ||||
Modified DO-214AA | |-Vref| + |-1.2V| | |-Vref| + |-10V| | 500 | 400 | 200 | UR |
Connectivity SIDACtor® Protection Thyristors Applications
- Baseband equipment
- Broadband equipment
- Line cards
- Modems
- Phones
- VOIP
Connectivity SIDACtor® Protection Thyristors Resources

Circuit Protection Selection Guide
Consult this guide to learn about circuit protection considerations and the solutions Littelfuse offers. Tables help match products with applications.

Power Semiconductor and IC Selection Guide
See our comprehensive portfolio of power semiconductor & integrated circuit technologies in industry standard & innovative packages.