Littelfuse SL1021B500C

Gas Discharge Tube (GDT) circuit protection devices safely dissipate surge energy within a sealed plasma gas environment. They are commonly used to help protect sensitive telecommunications and network equipment and lines from damage caused by lightning strikes and equipment switching operations. The Littelfuse GDT series described in this document is available in a variety of leaded and surface-mount configurations, with or without a fail-safe clip. The SL1021A/B series GDTs are designed to provide high-performance protection against fast-rising transients in the range of 100V/μS to 1KV/μS, most likely generated by induced lightning surge interference. These devices feature ultra-low capacitance (typically 1.5pF or less) and are extremely robust — SL1021A devices can divert 10,000-ampere pulses without damage, while SL1021B suffix devices can divert 20,000-ampere pulses without damage. This series incorporates an optimized internal geometry for low insertion loss at high frequencies, making it ideal for protecting broadband and other high-speed transmission equipment.

• RoHS compliant
• Low insertion loss
• Excellent response to fast-rising transients
• Ultra-low capacitance
• 10KA (A-suffix devices) / 20KA (B-suffix devices) surge capability, tested per IEC 61000-4-5 using 8/20μs pulses
• Optional thermal failure protection (add 'F' suffix to part number)

• Broadband Equipment
• ADSL Equipment
• XDSL Equipment
• Satellite and CATV Equipment
• General Telecom Equipment