{"product_id":"smd2921-090n-gas-discharge-tubes-smd2921-package-ruilon","title":"SMD2921-090N Gas Discharge Tubes – SMD2921 Package | RUILON","description":"\u003cdiv class=\"flex flex-col text-sm pb-25\"\u003e\n\u003csection class=\"text-token-text-primary w-full focus:outline-none [--shadow-height:45px] has-data-writing-block:pointer-events-none has-data-writing-block:-mt-(--shadow-height) has-data-writing-block:pt-(--shadow-height) [\u0026amp;:has([data-writing-block])\u0026gt;*]:pointer-events-auto scroll-mt-[calc(var(--header-height)+min(200px,max(70px,20svh)))]\" dir=\"auto\" data-turn-id=\"request-69d89685-1718-8321-be10-ac2f9828aa34-2\" data-testid=\"conversation-turn-32\" data-scroll-anchor=\"true\" data-turn=\"assistant\"\u003e\n\u003cdiv class=\"text-base my-auto mx-auto pb-10 [--thread-content-margin:var(--thread-content-margin-xs,calc(var(--spacing)*4))] @w-sm\/main:[--thread-content-margin:var(--thread-content-margin-sm,calc(var(--spacing)*6))] @w-lg\/main:[--thread-content-margin:var(--thread-content-margin-lg,calc(var(--spacing)*16))] px-(--thread-content-margin)\"\u003e\n\u003cdiv class=\"[--thread-content-max-width:40rem] @w-lg\/main:[--thread-content-max-width:48rem] mx-auto max-w-(--thread-content-max-width) flex-1 group\/turn-messages focus-visible:outline-hidden relative flex w-full min-w-0 flex-col agent-turn\"\u003e\n\u003cdiv class=\"flex max-w-full flex-col gap-4 grow\"\u003e\n\u003cdiv data-message-author-role=\"assistant\" data-message-id=\"ae3afeae-f522-45e7-884f-677e74be8ad1\" dir=\"auto\" data-message-model-slug=\"gpt-5-3-mini\" class=\"min-h-8 text-message relative flex w-full flex-col items-end gap-2 text-start break-words whitespace-normal outline-none keyboard-focused:focus-ring [.text-message+\u0026amp;]:mt-1\" data-turn-start-message=\"true\" tabindex=\"0\"\u003e\n\u003cdiv class=\"flex w-full flex-col gap-1 empty:hidden\"\u003e\n\u003cdiv class=\"markdown prose dark:prose-invert w-full wrap-break-word light markdown-new-styling\"\u003e\n\u003cp data-start=\"65\" data-end=\"533\"\u003eThe SMD2921-090N Gas Discharge Tube (GDT) from RUILON is a compact and high-reliability surge protection component designed to protect sensitive electronic circuits from lightning strikes, transient overvoltage, and electrostatic discharge. With a nominal DC spark-over voltage of 90V (tested at 100V\/µs), it provides fast and precise response to surge events, ensuring effective diversion of high-energy transients away from critical circuitry.\u003c\/p\u003e\n\u003cp data-start=\"535\" data-end=\"1044\"\u003eBuilt using advanced ceramic gas discharge technology, the SMD2921-090N offers stable impulse spark-over performance (1kV\/µs), high insulation resistance, and low capacitance at 1 MHz, making it ideal for high-speed data and communication lines with minimal signal distortion. It also features strong impulse discharge current capability (8\/20µs waveform) and excellent impulse withstanding voltage capacity, ensuring long-term durability and consistent protection performance under repeated surge conditions.\u003c\/p\u003e\n\u003cp data-start=\"1046\" data-end=\"1403\"\u003eCompared to lower voltage GDT series, the 90V variant provides improved operating voltage margin while maintaining fast response and high surge handling capability. The SMD2921 package offers a balanced solution between compact size and enhanced thermal performance, making it suitable for space-constrained PCB designs and automated surface-mount assembly.\u003c\/p\u003e\n\u003cp data-start=\"1405\" data-end=\"1424\"\u003e\u003cstrong data-start=\"1405\" data-end=\"1422\"\u003eKey Features:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul data-start=\"1425\" data-end=\"1720\"\u003e\n\u003cli data-section-id=\"19v9c4e\" data-start=\"1425\" data-end=\"1465\"\u003eDC Spark-Over Voltage: 90V @ 100V\/µS\u003c\/li\u003e\n\u003cli data-section-id=\"m23dwh\" data-start=\"1466\" data-end=\"1512\"\u003eStable impulse spark-over voltage @ 1kV\/µS\u003c\/li\u003e\n\u003cli data-section-id=\"19kifff\" data-start=\"1513\" data-end=\"1555\"\u003eHigh surge current capability (8\/20µS)\u003c\/li\u003e\n\u003cli data-section-id=\"i71dbo\" data-start=\"1556\" data-end=\"1604\"\u003eLow capacitance @ 1 MHz for signal integrity\u003c\/li\u003e\n\u003cli data-section-id=\"1d9sj2t\" data-start=\"1605\" data-end=\"1635\"\u003eHigh insulation resistance\u003c\/li\u003e\n\u003cli data-section-id=\"10hmw0c\" data-start=\"1636\" data-end=\"1678\"\u003eLong service life and high reliability\u003c\/li\u003e\n\u003cli data-section-id=\"13bxeaa\" data-start=\"1679\" data-end=\"1720\"\u003eCompact SMD2921 surface-mount package\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp data-start=\"1722\" data-end=\"1741\"\u003e\u003cstrong data-start=\"1722\" data-end=\"1739\"\u003eApplications:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul data-start=\"1742\" data-end=\"1983\" data-is-last-node=\"\" data-is-only-node=\"\"\u003e\n\u003cli data-section-id=\"cnyvda\" data-start=\"1742\" data-end=\"1778\"\u003eTelecom and networking equipment\u003c\/li\u003e\n\u003cli data-section-id=\"1um754u\" data-start=\"1779\" data-end=\"1809\"\u003eIndustrial control systems\u003c\/li\u003e\n\u003cli data-section-id=\"1qk23rb\" data-start=\"1810\" data-end=\"1846\"\u003ePower supply protection circuits\u003c\/li\u003e\n\u003cli data-section-id=\"1rmd5cb\" data-start=\"1847\" data-end=\"1889\"\u003eSmart meters and communication modules\u003c\/li\u003e\n\u003cli data-section-id=\"yxopth\" data-start=\"1890\" data-end=\"1930\"\u003eConsumer electronics and IoT devices\u003c\/li\u003e\n\u003cli data-section-id=\"byd4i0\" data-start=\"1931\" data-end=\"1983\" data-is-last-node=\"\"\u003eLightning and transient voltage protection systems\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"z-0 flex min-h-[46px] justify-start\"\u003e\u003cbr\u003e\u003c\/div\u003e\n\u003cdiv class=\"mt-3 w-full empty:hidden\"\u003e\n\u003cdiv class=\"text-center\"\u003e\u003cbr\u003e\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/section\u003e\n\u003c\/div\u003e","brand":"RUILON","offers":[{"title":"Default Title","offer_id":43759663284289,"sku":null,"price":0.0,"currency_code":"INR","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0647\/4468\/5633\/files\/VARISTOR-01.png?v=1756461410","url":"https:\/\/hext.in\/products\/smd2921-090n-gas-discharge-tubes-smd2921-package-ruilon","provider":"Hext by Regent Electronics","version":"1.0","type":"link"}