{"product_id":"3r420b-5s-420v-gas-discharge-tube-gdt-surge-protector-3rb-5s-package-ruilon","title":"3R420B-5S 420V Gas Discharge Tube (GDT) Surge Protector – 3RB-5S Package | RUILON","description":"\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 [content-visibility:auto] supports-[content-visibility:auto]:[contain-intrinsic-size:auto_100lvh] R6Vx5W_threadScrollVars scroll-mb-[calc(var(--scroll-root-safe-area-inset-bottom,0px)+var(--thread-response-height))] scroll-mt-[calc(var(--header-height)+min(200px,max(70px,20svh)))]\" dir=\"auto\" data-turn-id=\"request-WEB:fb28836d-5024-410d-a6ea-424568166af4-45\" data-testid=\"conversation-turn-92\" data-scroll-anchor=\"false\" 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=\"4de6c1ba-d92d-4509-9b7d-ae6c4ee4c474\" 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=\"107\" data-end=\"541\"\u003eThe \u003cstrong data-start=\"134\" data-end=\"172\"\u003e3R420B-5S Gas Discharge Tube (GDT)\u003c\/strong\u003e from \u003cstrong data-start=\"178\" data-end=\"188\"\u003eRUILON\u003c\/strong\u003e is a high-reliability ceramic surge protection device engineered to protect sensitive electronic systems from transient overvoltage events such as lightning strikes and switching surges. With a \u003cstrong data-start=\"383\" data-end=\"413\"\u003e420V DC spark-over voltage\u003c\/strong\u003e, this component is ideal for medium- to high-voltage applications requiring stable and consistent surge protection performance.\u003c\/p\u003e\n\u003cp data-start=\"543\" data-end=\"956\"\u003eUtilizing advanced gas discharge technology, the 3R420B-5S delivers \u003cstrong data-start=\"611\" data-end=\"658\"\u003estable impulse spark-over voltage at 1KV\/µs\u003c\/strong\u003e, along with \u003cstrong data-start=\"671\" data-end=\"701\"\u003ehigh insulation resistance\u003c\/strong\u003e and \u003cstrong data-start=\"706\" data-end=\"734\"\u003elow capacitance at 1 MHz\u003c\/strong\u003e, ensuring minimal signal distortion in communication and control circuits. Its strong capability to withstand \u003cstrong data-start=\"845\" data-end=\"897\"\u003ehigh impulse discharge current (8\/20µs waveform)\u003c\/strong\u003e provides effective surge absorption and long service life.\u003c\/p\u003e\n\u003cp data-start=\"958\" data-end=\"1261\"\u003eCompared to lower voltage GDT variants, the 420V model offers improved resistance to false triggering in higher voltage environments while maintaining reliable protection performance. The compact \u003cstrong data-start=\"1154\" data-end=\"1172\"\u003e3RB-5S package\u003c\/strong\u003e enables efficient PCB design and consistent operation in space-constrained applications.\u003c\/p\u003e\n\u003cp data-start=\"1263\" data-end=\"1489\"\u003eThis GDT is widely used in \u003cstrong data-start=\"1290\" data-end=\"1429\"\u003etelecommunications equipment, power supplies, industrial automation systems, signal line protection, and surge protection devices (SPD)\u003c\/strong\u003e, delivering dependable and long-lasting circuit protection.\u003c\/p\u003e\n\u003chr data-start=\"1491\" data-end=\"1494\"\u003e\n\u003cp data-start=\"1496\" data-end=\"1515\"\u003e\u003cstrong data-start=\"1496\" data-end=\"1513\"\u003eKey Features:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul data-start=\"1516\" data-end=\"1868\"\u003e\n\u003cli data-section-id=\"p1ysom\" data-start=\"1516\" data-end=\"1574\"\u003e420V DC spark-over voltage for stable surge protection\u003c\/li\u003e\n\u003cli data-section-id=\"usz1lm\" data-start=\"1575\" data-end=\"1625\"\u003eStable impulse spark-over performance (1KV\/µs)\u003c\/li\u003e\n\u003cli data-section-id=\"e1lj48\" data-start=\"1626\" data-end=\"1677\"\u003eHigh surge current capability (8\/20µs waveform)\u003c\/li\u003e\n\u003cli data-section-id=\"1v56u3e\" data-start=\"1678\" data-end=\"1718\"\u003eLow capacitance for signal integrity\u003c\/li\u003e\n\u003cli data-section-id=\"1ar9mdq\" data-start=\"1719\" data-end=\"1765\"\u003eHigh insulation resistance and reliability\u003c\/li\u003e\n\u003cli data-section-id=\"19dqhp3\" data-start=\"1766\" data-end=\"1820\"\u003eCompact 3RB-5S package for space-efficient designs\u003c\/li\u003e\n\u003cli data-section-id=\"vqpqhu\" data-start=\"1821\" data-end=\"1868\"\u003eLong service life with high surge endurance\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003chr data-start=\"1870\" data-end=\"1873\"\u003e\n\u003cp data-start=\"1875\" data-end=\"1894\"\u003e\u003cstrong data-start=\"1875\" data-end=\"1892\"\u003eApplications:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul data-start=\"1895\" data-end=\"2129\" data-is-last-node=\"\" data-is-only-node=\"\"\u003e\n\u003cli data-section-id=\"cnyvda\" data-start=\"1895\" data-end=\"1931\"\u003eTelecom and networking equipment\u003c\/li\u003e\n\u003cli data-section-id=\"1aibmrf\" data-start=\"1932\" data-end=\"1971\"\u003ePower supply and adapter protection\u003c\/li\u003e\n\u003cli data-section-id=\"lvx3t6\" data-start=\"1972\" data-end=\"2017\"\u003eIndustrial automation and control systems\u003c\/li\u003e\n\u003cli data-section-id=\"1ywh1kw\" data-start=\"2018\" data-end=\"2053\"\u003eSignal and data line protection\u003c\/li\u003e\n\u003cli data-section-id=\"7vkfio\" data-start=\"2054\" data-end=\"2088\"\u003eSurge protection devices (SPD)\u003c\/li\u003e\n\u003cli data-section-id=\"1tu7i0c\" data-start=\"2089\" data-end=\"2129\" data-is-last-node=\"\"\u003eConsumer and communication electronics\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","brand":"RUILON","offers":[{"title":"Default Title","offer_id":43771886141505,"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\/3r420b-5s-420v-gas-discharge-tube-gdt-surge-protector-3rb-5s-package-ruilon","provider":"Hext by Regent Electronics","version":"1.0","type":"link"}