{"product_id":"3r420sb-8s-420v-gas-discharge-tube-gdt-surge-protector-3rb-8s-package-ruilon","title":"3R420SB-8S 420V Gas Discharge Tube (GDT) Surge Protector – 3RB-8S Package | RUILON","description":"\u003cp data-start=\"108\" data-end=\"541\"\u003eThe \u003cstrong data-start=\"135\" data-end=\"174\"\u003e3R420SB-8S Gas Discharge Tube (GDT)\u003c\/strong\u003e from \u003cstrong data-start=\"180\" data-end=\"190\"\u003eRUILON\u003c\/strong\u003e is a high-reliability ceramic surge protection device engineered to protect electronic systems from transient overvoltage events such as lightning strikes and switching surges. Featuring a \u003cstrong data-start=\"380\" data-end=\"410\"\u003e420V DC spark-over voltage\u003c\/strong\u003e, this component is designed for medium- to high-voltage applications requiring stable and efficient surge suppression performance.\u003c\/p\u003e\n\u003cp data-start=\"543\" data-end=\"957\"\u003eBuilt with advanced gas discharge technology, the 3R420SB-8S provides \u003cstrong data-start=\"613\" data-end=\"660\"\u003estable impulse spark-over voltage at 1KV\/µs\u003c\/strong\u003e, along with \u003cstrong data-start=\"673\" data-end=\"703\"\u003ehigh insulation resistance\u003c\/strong\u003e and \u003cstrong data-start=\"708\" data-end=\"736\"\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=\"847\" data-end=\"899\"\u003ehigh impulse discharge current (8\/20µs waveform)\u003c\/strong\u003e ensures reliable energy absorption and long service life.\u003c\/p\u003e\n\u003cp data-start=\"959\" data-end=\"1275\"\u003eCompared to lower voltage GDT variants, the 420V model offers improved resistance to false triggering in higher operating voltage environments while maintaining consistent protection performance. The compact \u003cstrong data-start=\"1167\" data-end=\"1185\"\u003e3RB-8S package\u003c\/strong\u003e supports efficient PCB layout and dependable operation in space-constrained applications.\u003c\/p\u003e\n\u003cp data-start=\"1277\" data-end=\"1503\"\u003eThis GDT is widely used in \u003cstrong data-start=\"1304\" data-end=\"1443\"\u003etelecommunications equipment, power supplies, industrial automation systems, signal line protection, and surge protection devices (SPD)\u003c\/strong\u003e, delivering consistent and long-lasting circuit protection.\u003c\/p\u003e\n\u003chr data-start=\"1505\" data-end=\"1508\"\u003e\n\u003cp data-start=\"1510\" data-end=\"1529\"\u003e\u003cstrong data-start=\"1510\" data-end=\"1527\"\u003eKey Features:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul data-start=\"1530\" data-end=\"1879\"\u003e\n\u003cli data-section-id=\"p1ysom\" data-start=\"1530\" data-end=\"1588\"\u003e420V DC spark-over voltage for stable surge protection\u003c\/li\u003e\n\u003cli data-section-id=\"usz1lm\" data-start=\"1589\" data-end=\"1639\"\u003eStable impulse spark-over performance (1KV\/µs)\u003c\/li\u003e\n\u003cli data-section-id=\"e1lj48\" data-start=\"1640\" data-end=\"1691\"\u003eHigh surge current capability (8\/20µs waveform)\u003c\/li\u003e\n\u003cli data-section-id=\"1v56u3e\" data-start=\"1692\" data-end=\"1732\"\u003eLow capacitance for signal integrity\u003c\/li\u003e\n\u003cli data-section-id=\"1ar9mdq\" data-start=\"1733\" data-end=\"1779\"\u003eHigh insulation resistance and reliability\u003c\/li\u003e\n\u003cli data-section-id=\"1yazqep\" data-start=\"1780\" data-end=\"1831\"\u003eCompact 3RB-8S package for efficient PCB design\u003c\/li\u003e\n\u003cli data-section-id=\"vqpqhu\" data-start=\"1832\" data-end=\"1879\"\u003eLong service life with high surge endurance\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003chr data-start=\"1881\" data-end=\"1884\"\u003e\n\u003cp data-start=\"1886\" data-end=\"1905\"\u003e\u003cstrong data-start=\"1886\" data-end=\"1903\"\u003eApplications:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul data-start=\"1906\" data-end=\"2128\" data-is-last-node=\"\" data-is-only-node=\"\"\u003e\n\u003cli data-section-id=\"cnyvda\" data-start=\"1906\" data-end=\"1942\"\u003eTelecom and networking equipment\u003c\/li\u003e\n\u003cli data-section-id=\"1aibmrf\" data-start=\"1943\" data-end=\"1982\"\u003ePower supply and adapter protection\u003c\/li\u003e\n\u003cli data-section-id=\"xwcxty\" data-start=\"1983\" data-end=\"2016\"\u003eIndustrial automation systems\u003c\/li\u003e\n\u003cli data-section-id=\"1ywh1kw\" data-start=\"2017\" data-end=\"2052\"\u003eSignal and data line protection\u003c\/li\u003e\n\u003cli data-section-id=\"7vkfio\" data-start=\"2053\" data-end=\"2087\"\u003eSurge protection devices (SPD)\u003c\/li\u003e\n\u003cli data-section-id=\"1tu7i0c\" data-start=\"2088\" data-end=\"2128\" data-is-last-node=\"\"\u003eConsumer and communication electronics\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"RUILON","offers":[{"title":"Default Title","offer_id":43771985133633,"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\/3r420sb-8s-420v-gas-discharge-tube-gdt-surge-protector-3rb-8s-package-ruilon","provider":"Hext by Regent Electronics","version":"1.0","type":"link"}