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Power Semiconductor and IC Selection Guide
See our comprehensive portfolio of power semiconductor & integrated circuit technologies in industry standard & innovative packages.
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Squared gas discharge tubes (GDTs) mount on printed circuit boards to provide overvoltage protection to board components, circuits, and electrical equipment. The surge protective devices respond within picoseconds, using plasma to discharge excess voltage as heat. You will find the SPDs providing lightning protection to overhead power lines and protecting data cables from smaller overvoltage events. Discover the best surge suppressor for you application by consulting the Littelfuse Circuit Protection Product Selection Guide.
- Surge capacities of between 1 kA 8/20 µs to 5 kA 8/20 µs
- Wide ranges of operating voltages (e.g., 75 V dc to 600 V dc)
- Very low to low capacitance (e.g., ≥ 0.5 pF, ≥ 1 pF)
- Include crowbar devices with low arc voltages
- Small footprints (e.g., 3.2x1.6x1.6 mm)
- UL Recognized
- Meet IEC and ITU standards
- Certified lead-free and RoHS compliant
- Capacitance does not vary with voltage, meaning responses to fast transient overvoltage events will not introduce noise across data or voice circuits
- Available with optional fail-short mechanisms to remove blown GDTs from circuits
- Available with a variety of mounting leads
- Compatible with high-volume and automated PCB production processes
Squared Parts
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