{"product_id":"siba-189140-t12-5a-12-5a-500vac-6-3-32mm-ar-fuses-10-pieces","title":"SIBA 189140 aR Fuse, 12.5A 500VAC\/500VDC, Ultrafast Semiconductor Protection, Ceramic, 6.3x32mm - Pack of 10","description":"\u003ch3 id=\"heading-0aefae38-d99d-4fe2-bb70-ddb0a79271c3--siba-189140-ar-fuse-125a-500vac-500vdc-0\"\u003eSIBA 189140 aR Fuse, 12.5A 500VAC\/500VDC\u003c\/h3\u003e\n\u003cp\u003eThe SIBA 189140 aR Ultrafast Fuse is specifically engineered to provide superior protection for power semiconductors, offering exceptional reliability and rapid fault clearing in demanding electrical systems. This robust ceramic fuse, with a current rating of 12.5A and a voltage rating of 500VAC\/500VDC, is designed to interrupt fault currents extremely quickly, thus preventing costly damage to sensitive components like diodes, thyristors, and IGBTs. Its compact 6.3x32mm cylindrical body with silver-plated end caps ensures easy integration into various applications and reliable electrical contact.\u003c\/p\u003e\n\u003ch4 id=\"heading-0aefae38-d99d-4fe2-bb70-ddb0a79271c3--key-features-0\"\u003eKey Features:\u003c\/h4\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eUltrafast Protection:\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003eFeatures an \"aR\" characteristic, providing fast-acting, partial-range current limiting protection specifically for power semiconductors.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eHigh Breaking Capacity:\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003eCapable of clearing fault currents up to 100kA at 500VAC\/500VDC, ensuring system safety during severe overcurrent conditions.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eDual Voltage Rating:\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003eSuitable for both AC (500V) and DC (500V) applications, offering versatility in design.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eLow I²t Values:\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003eDesigned to have very low melting integral (I²t), which minimizes the energy let-through during a short circuit, crucial for protecting vulnerable semiconductors.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eLow Power Losses:\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003eEfficient construction results in minimal power dissipation, contributing to cooler operation and energy efficiency.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eRobust Ceramic Construction:\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003eHigh-quality ceramic body provides excellent insulation and thermal stability, even under extreme conditions.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eStandard Size:\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003eCylindrical 6.3x32mm dimensions are widely compatible with standard fuse holders.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch4 id=\"heading-0aefae38-d99d-4fe2-bb70-ddb0a79271c3--detailed-technical-specifications-0\"\u003eDetailed Technical Specifications:\u003c\/h4\u003e\n\u003cp\u003e\u003cstrong\u003eElectrical Characteristics:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eManufacturer:\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003eSIBA\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePart Number:\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003e189140 (for 6.3x32mm series)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eRated Current (IN):\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003e12.5A\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eRated Voltage (VAC):\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003e500V AC\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eRated Voltage (VDC):\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003e500V DC\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFuse Characteristic:\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003eaR (Ultrafast, Partial Range Breaking Capacity for Semiconductor Protection)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eBreaking Capacity (Interrupting Rating):\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003e100kA @ 500VAC, 100kA @ 500VDC, L\/R = 15ms\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMelting Integral (I²t) @ 500V:\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003eApproximately 11.5 A²s (for 12.5A rating, values vary slightly by specific variant or publication batch, typical for the series and current).\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eRated Power Dissipation:\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003eApproximately 0.8W (at rated current, typical).\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eOperating Temperature Range:\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003e-40°C to +85°C (storage and operation without derating).\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cstrong\u003eMechanical Specifications:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eBody Material:\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003eCeramic\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eEnd Caps:\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003eSilver-plated brass\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eDimensions (Diameter x Length):\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003e6.3mm x 32mm\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMounting:\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003eCylindrical, designed for standard fuse clips or fuse holders\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cstrong\u003eStandards \u0026amp; Compliance:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eInternational Standard:\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003eIEC 60269-1, IEC 60269-4 (Fuses for the protection of power semiconductors)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCertification:\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003eRoHS Compliant\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch4 id=\"heading-0aefae38-d99d-4fe2-bb70-ddb0a79271c3--applications-0\"\u003eApplications:\u003c\/h4\u003e\n\u003cp\u003eThis SIBA Ultrafast Fuse is indispensable in a wide array of applications where the rapid protection of power electronics is critical:\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eProtection of costly power semiconductors (diodes, thyristors, IGBTs, MOSFETs)\u003c\/li\u003e\n\u003cli\u003eIndustrial power supplies (AC\/DC converters, DC\/DC converters)\u003c\/li\u003e\n\u003cli\u003eInverters and motor drives\u003c\/li\u003e\n\u003cli\u003eUninterruptible Power Supplies (UPS)\u003c\/li\u003e\n\u003cli\u003eRenewable energy systems (solar inverters, wind power converters)\u003c\/li\u003e\n\u003cli\u003eHeating and cooling control systems\u003c\/li\u003e\n\u003cli\u003eIndustrial control equipment\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eThis product is supplied as a pack of 10 units.\u003c\/p\u003e\n\u003c!----\u003e","brand":"Siba","offers":[{"title":"Default Title","offer_id":49496374903063,"sku":null,"price":50.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0837\/9210\/1655\/files\/siba-industrial-fuses-siba-189140-t1a-1a-500vac-ar-fast-acting-fuse-6-3x32-mm-pack-of-10-1212525597.png?v=1766384882","url":"https:\/\/www.apexonsupply.com\/products\/siba-189140-t12-5a-12-5a-500vac-6-3-32mm-ar-fuses-10-pieces","provider":"Apexon Solutions LLC","version":"1.0","type":"link"}