{"id":4162,"date":"2025-10-21T17:04:10","date_gmt":"2025-10-21T17:04:10","guid":{"rendered":"https:\/\/1clickrepair.in\/ESS\/?post_type=product&#038;p=4162"},"modified":"2026-10-26T11:36:25","modified_gmt":"2026-10-26T11:36:25","slug":"r3-24-pcb-mount-vertical-fuse-holder-panel-base","status":"publish","type":"product","link":"https:\/\/essfuse.com\/es\/producto\/r3-24-pcb-mount-vertical-fuse-holder-panel-base\/","title":{"rendered":"5x20mm PCB\u2011Mount Fuse Holder | 10A Black Bakelite Industrial Fuse Block"},"content":{"rendered":"<p><img loading=\"lazy\" decoding=\"async\" class=\"alignnone wp-image-13057\" src=\"https:\/\/essfuse.com\/wp-content\/uploads\/2025\/10\/1.jpg\" alt=\"\" width=\"544\" height=\"334\" \/><img loading=\"lazy\" decoding=\"async\" class=\"alignnone wp-image-13058\" src=\"https:\/\/essfuse.com\/wp-content\/uploads\/2025\/10\/2.jpg\" alt=\"\" width=\"542\" height=\"333\" \/><\/p>\n<p><strong>PCB\u2011mount fuse holder<\/strong> for 5x20mm cartridge fuses is a black bakelite through\u2011hole soldered circuit\u2011protection component for low\u2011voltage PCBA. This fuse block uses high\u2011performance black bakelite insulating base with UL94 V\u20110 flame\u2011retardant grade, paired with 0.5\u202fmm thick phosphor\u2011bronze conductive terminals. Bakelite material delivers superior arc\u2011suppression and heat\u2011resistant performance. Designed for direct through\u2011hole PCB soldering assembly. Widely used in power adapters, household appliances, test instruments and general\u2011purpose industrial electronic control printed\u2011circuit\u2011boards.<\/p>\n<h2>Core Product Features<\/h2>\n<ul>\n<li>Compatible with standard 5 \u00d7 20\u202fmm glass \/ ceramic tubular cartridge fuses for PCB\u2011level over\u2011current\u2011protection<\/li>\n<li>Electrical rating: 10A, 250V \/125V AC\/DC; 50A breaking capacity for reliable fault\u2011current interruption<\/li>\n<li>Housing material: Black Bakelite, UL94\u202fV\u20110 flame\u2011retardant grade; excellent arc\u2011quenching and heat\u2011resistance performance<\/li>\n<li>Terminal: 0.5\u202fmm thickness phosphor\u2011bronze, high spring tension, stable clamping performance<\/li>\n<li>Contact resistance below 5\u202fm\u03a9; insulation resistance greater than 100\u202fM\u03a9; 3000V AC power\u2011frequency withstand voltage<\/li>\n<li>Through\u2011hole PCB soldering mount, fits conventional wave\u2011soldering mass\u2011production workflows<\/li>\n<li>RoHS\u2011compliant construction, meets global consumer\u2011electronics and industrial safety standards.<\/li>\n<\/ul>\n<p>Different from PBT plastic PCB fuse holders, black bakelite housing brings enhanced arc\u2011resistance and thermal stability, which is a preferred solution for PCBA where arc\u2011suppression and high\u2011temperature resistance are required.<\/p>\n<h2>Full Technical Specifications<\/h2>\n<table style=\"border-collapse: collapse; width: 100%; border: 1px solid #000;\">\n<tbody>\n<tr>\n<th style=\"border: 1px solid #000; padding: 8px 12px; text-align: left; background: #f5f5f5;\">Specification Item<\/th>\n<th style=\"border: 1px solid #000; padding: 8px 12px; text-align: left; background: #f5f5f5;\">Parameter Value<\/th>\n<\/tr>\n<tr>\n<td style=\"border: 1px solid #000; padding: 8px 12px;\">Model<\/td>\n<td style=\"border: 1px solid #000; padding: 8px 12px;\">R3\u201124<\/td>\n<\/tr>\n<tr>\n<td style=\"border: 1px solid #000; padding: 8px 12px;\">Compatible Fuse<\/td>\n<td style=\"border: 1px solid #000; padding: 8px 12px;\">5 \u00d7 20\u202fmm glass \/ ceramic tubular cartridge fuse<\/td>\n<\/tr>\n<tr>\n<td style=\"border: 1px solid #000; padding: 8px 12px;\">Rated Current<\/td>\n<td style=\"border: 1px solid #000; padding: 8px 12px;\">10A<\/td>\n<\/tr>\n<tr>\n<td style=\"border: 1px solid #000; padding: 8px 12px;\">Rated Voltage<\/td>\n<td style=\"border: 1px solid #000; padding: 8px 12px;\">250V \/ 125V AC \/ DC<\/td>\n<\/tr>\n<tr>\n<td style=\"border: 1px solid #000; padding: 8px 12px;\">Breaking Capacity<\/td>\n<td style=\"border: 1px solid #000; padding: 8px 12px;\">50A<\/td>\n<\/tr>\n<tr>\n<td style=\"border: 1px solid #000; padding: 8px 12px;\">Housing Material<\/td>\n<td style=\"border: 1px solid #000; padding: 8px 12px;\">Black Bakelite, UL94 V0 flame\u2011retardant<\/td>\n<\/tr>\n<tr>\n<td style=\"border: 1px solid #000; padding: 8px 12px;\">Terminal Material<\/td>\n<td style=\"border: 1px solid #000; padding: 8px 12px;\">0.5\u202fmm thick phosphor bronze<\/td>\n<\/tr>\n<tr>\n<td style=\"border: 1px solid #000; padding: 8px 12px;\">Contact Resistance<\/td>\n<td style=\"border: 1px solid #000; padding: 8px 12px;\">\uff1c 5\u202fm\u03a9<\/td>\n<\/tr>\n<tr>\n<td style=\"border: 1px solid #000; padding: 8px 12px;\">Insulation Resistance<\/td>\n<td style=\"border: 1px solid #000; padding: 8px 12px;\">\uff1e 100\u202fM\u03a9<\/td>\n<\/tr>\n<tr>\n<td style=\"border: 1px solid #000; padding: 8px 12px;\">Power Frequency Withstand Voltage<\/td>\n<td style=\"border: 1px solid #000; padding: 8px 12px;\">3000V AC<\/td>\n<\/tr>\n<tr>\n<td style=\"border: 1px solid #000; padding: 8px 12px;\">Mounting Method<\/td>\n<td style=\"border: 1px solid #000; padding: 8px 12px;\">Through\u2011hole PCB soldering mount<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<h2>Selection &amp; Application Guidance<\/h2>\n<p>When selecting this bakelite PCB\u2011mount fuse holder for 5&#215;20\u202fmm fuses, confirm fuse dimension, system AC\u2011DC voltage and continuous operating\u2011current first. Select matching\u2011rating 5x20mm tubular fuses and reserve a 1.25\u20111.5\u00d7 safety margin to avoid over\u2011heating under continuous\u2011load. Choose bakelite variant for projects requiring superior arc\u2011resistance performance. Follow official dimension drawing for PCB pad layout to guarantee soldering reliability and stable contact performance.<\/p>\n<h2>Typical Application Scenarios<\/h2>\n<ul>\n<li>Power\u2011adapter and small switching\u2011power\u2011supply PCBA fuse accessories<\/li>\n<li>Household\u2011appliance control\u2011board and consumer\u2011electronics protection circuits<\/li>\n<li>Test instruments, multimeters and laboratory small\u2011power circuit\u2011boards<\/li>\n<li>Communication\u2011equipment auxiliary power\u2011input protection accessories<\/li>\n<li>LED power\u2011drivers and low\u2011voltage lighting\u2011control PCBA<\/li>\n<li>Small\u2011industrial\u2011automation module PCB over\u2011current\u2011protection accessories<\/li>\n<\/ul>\n<h2>Installation &amp; Maintenance Instructions<\/h2>\n<p>1. Select correct\u2011rating 5 \u00d7 20\u202fmm glass \/ ceramic tubular cartridge fuse according to circuit\u2011protection requirements.<\/p>\n<p>2. Design PCB through\u2011hole pads strictly follow official dimension drawing to ensure soldering compatibility.<\/p>\n<p>3. Complete wave\u2011soldering or manual\u2011soldering with proper temperature and dwell\u2011time; avoid over\u2011heat damage to bakelite housing.<\/p>\n<p>4. Insert tubular fuse fully into holder cavity for reliable electrical contact.<\/p>\n<p>5. Do not operate beyond published rated voltage\u2011current limits to prevent insulation breakdown and safety hazards.<\/p>\n<p>6. Cut\u2011off full power supply and discharge circuit before fuse replacement to prevent electric\u2011shock hazard.<\/p>\n<p>7. Periodically inspect for loose fuse, contact\u2011clip oxidation or heating signs; replace accessories promptly when anomalies are found.<\/p>\n<p><a href=\"https:\/\/essfuse.com\/wp-content\/uploads\/2025\/10\/r3242.pdf\">R3-24 PCB\u2011Mount Fuse Holder <\/a><\/p>\n<h2>Frequently Asked Questions<\/h2>\n<p><strong>Q1: What fuse size fits this bakelite pcb fuse holder?<\/strong><\/p>\n<p>A1: It fits standard 5 \u00d7 20\u202fmm glass and ceramic tubular cartridge fuses, widely\u2011used for PCB\u2011mount low\u2011voltage circuit\u2011protection.<\/p>\n<p><strong>Q2: What are its electrical ratings?<\/strong><\/p>\n<p>A2: Rated 10A, 250V\/125V AC\/DC; breaking capacity 50A for fault\u2011current interruption.<\/p>\n<p><strong>Q3: What is special about bakelite housing?<\/strong><\/p>\n<p>A3: Black bakelite base with UL94\u202fV\u20110 flame\u2011retardant grade, delivers outstanding arc\u2011suppression and high\u2011temperature resistance compared with ordinary plastic.<\/p>\n<p><strong>Q4: What are terminal and insulation\u2011related parameters?<\/strong><\/p>\n<p>A4: 0.5\u202fmm phosphor bronze terminals, contact resistance\uff1c5\u202fm\u03a9; insulation resistance\uff1e100\u202fM\u03a9; 3000V AC power\u2011frequency withstand voltage.<\/p>\n<p><strong>Q5: What mounting style does it adopt?<\/strong><\/p>\n<p>A5: Through\u2011hole PCB soldering mount, compatible with wave\u2011soldering mass\u2011production for printed circuit boards.<\/p>\n<p><strong>Q6: What are main application\u2011fields?<\/strong><\/p>\n<p>A6: Applied for power adapters, household appliances, test instruments, LED drivers, communication\u2011equipment and various small\u2011power PCB\u2011based over\u2011current\u2011protection circuits.<\/p>","protected":false},"excerpt":{"rendered":"<div id=\"downloadAttachmentBtn\" class=\"custom-download-btn-wrapper\">Industrial\u2011grade black bakelite through\u2011hole PCB\u2011mount fuse holder for 5\u00d720mm glass &amp; ceramic cartridge fuses, UL94 V0 flame\u2011retardant bakelite housing, 0.5mm phosphor bronze terminals, rated 10A 250V\/125V AC\/DC, 50A breaking capacity, 3000V AC withstand voltage, for power adapters, test instruments and industrial PCB over\u2011current\u2011protection.<\/div>","protected":false},"featured_media":3844,"comment_status":"closed","ping_status":"closed","template":"","meta":[],"product_brand":[],"product_cat":[148],"product_tag":[],"class_list":["post-4162","product","type-product","status-publish","has-post-thumbnail","product_cat-pcb-fuse-holder-clip","first","instock","shipping-taxable","product-type-simple"],"_links":{"self":[{"href":"https:\/\/essfuse.com\/es\/wp-json\/wp\/v2\/product\/4162","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/essfuse.com\/es\/wp-json\/wp\/v2\/product"}],"about":[{"href":"https:\/\/essfuse.com\/es\/wp-json\/wp\/v2\/types\/product"}],"replies":[{"embeddable":true,"href":"https:\/\/essfuse.com\/es\/wp-json\/wp\/v2\/comments?post=4162"}],"version-history":[{"count":3,"href":"https:\/\/essfuse.com\/es\/wp-json\/wp\/v2\/product\/4162\/revisions"}],"predecessor-version":[{"id":15489,"href":"https:\/\/essfuse.com\/es\/wp-json\/wp\/v2\/product\/4162\/revisions\/15489"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/essfuse.com\/es\/wp-json\/wp\/v2\/media\/3844"}],"wp:attachment":[{"href":"https:\/\/essfuse.com\/es\/wp-json\/wp\/v2\/media?parent=4162"}],"wp:term":[{"taxonomy":"product_brand","embeddable":true,"href":"https:\/\/essfuse.com\/es\/wp-json\/wp\/v2\/product_brand?post=4162"},{"taxonomy":"product_cat","embeddable":true,"href":"https:\/\/essfuse.com\/es\/wp-json\/wp\/v2\/product_cat?post=4162"},{"taxonomy":"product_tag","embeddable":true,"href":"https:\/\/essfuse.com\/es\/wp-json\/wp\/v2\/product_tag?post=4162"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}