{"id":4290,"date":"2025-10-21T17:04:46","date_gmt":"2025-10-21T17:04:46","guid":{"rendered":"https:\/\/1clickrepair.in\/ESS\/?post_type=product&#038;p=4290"},"modified":"2026-10-26T11:19:24","modified_gmt":"2026-10-26T11:19:24","slug":"glass-fuse-holder-pcb-mount-ptf-78b-5x20-fuse-blocks","status":"publish","type":"product","link":"https:\/\/essfuse.com\/hi\/product\/glass-fuse-holder-pcb-mount-ptf-78b-5x20-fuse-blocks\/","title":{"rendered":"5.2x20 \u092e\u093f\u092e\u0940 \u092a\u0940\u0938\u0940\u092c\u0940-\u092e\u093e\u0909\u0902\u091f \u092b\u094d\u092f\u0942\u091c \u0939\u094b\u0932\u094d\u0921\u0930 \u0914\u0930 \u0915\u094d\u0932\u093f\u092a | \u0915\u093e\u0932\u0947 \u0930\u0902\u0917 \u0915\u0947 \u0914\u0926\u094d\u092f\u094b\u0917\u093f\u0915 \u092b\u094d\u092f\u0942\u091c \u0938\u0939\u093e\u092f\u0915 \u0909\u092a\u0915\u0930\u0923"},"content":{"rendered":"<p><strong>PCB\u2011mount fuse holders and clips accessories<\/strong> for 5.2x20mm cartridge fuses are through\u2011hole soldered circuit\u2011protection accessories for low\u2011voltage electronic PCBA. This fuse\u2011clip assembly uses high\u2011grade black PBT \/ PA UL94 V0 flame\u2011retardant insulating housing paired with durable H65 brass spring terminals. It delivers low contact\u2011resistance, high insulation strength and stable electrical performance for both AC and DC circuits. Designed for through\u2011hole PCB wave\u2011soldering mass\u2011production with 22.5\u202fmm pin pitch. Black housing is available as a variant besides green, custom colors are acceptable. Widely used as standard fuse accessories for power adapters, household appliances, test instruments and general\u2011purpose electronic control boards.<\/p>\n<h2>Core Product Features<\/h2>\n<ul>\n<li>Compatible with standard 5.2 \u00d7 20\u202fmm glass \/ ceramic tubular cartridge fuses for low\u2011voltage PCB\u2011level over\u2011current\u2011protection<\/li>\n<li>Electrical rating: 0.1\u20116.3A, 125V \/ 250V AC\/DC, covers small\u2011current consumer\u2011electronic circuit\u2011protection needs<\/li>\n<li>Housing material: PBT \/ PA, UL94\u202fV\u20110 flame\u2011retardant grade; <strong>black housing variant available (green as alternative)<\/strong><\/li>\n<li>Terminal: 0.4\u202fmm \/ 0.5\u202fmm thickness H65 brass spring contacts, stable spring\u2011clamping performance<\/li>\n<li>Contact resistance below 5\u202fm\u03a9; insulation resistance greater than 100\u202fM\u03a9; power\u2011frequency withstand voltage 3000V AC<\/li>\n<li>Through\u2011hole PCB soldering mount, 22.5\u202fmm pin\u2011pitch, fits conventional wave\u2011soldering manufacturing workflows<\/li>\n<li>Multiple housing\u2011color options: black \/ green, custom colors supported upon project request<\/li>\n<li>RoHS\u2011compliant construction, meets global consumer\u2011electronics safety and environmental\u2011protection standards.<\/li>\n<\/ul>\n<p>These black PCB fuse holders and clips serve as complete fuse accessories for printed\u2011circuit\u2011board integration. Different from panel\u2011mount fuse bases, this clip\u2011style PCB\u2011mount accessory saves cabinet\u2011internal space and allows fuse replacement directly on PCBA. Dual\u2011material PBT\/PA housing and color\u2011selectable options offer high flexibility for consumer\u2011electronic and instrument design projects.<\/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;\">PTF\u201177<\/td>\n<\/tr>\n<tr>\n<td style=\"border: 1px solid #000; padding: 8px 12px;\">Product Type<\/td>\n<td style=\"border: 1px solid #000; padding: 8px 12px;\">PCB Fuse Holders &amp; Clips Accessories<\/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;\">5.2 \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 Range<\/td>\n<td style=\"border: 1px solid #000; padding: 8px 12px;\">0.1A\u20116.3A<\/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;\">125V \/ 250V AC \/ DC<\/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;\">PBT \/ PA, UL94 V0 flame\u2011retardant<\/td>\n<\/tr>\n<tr>\n<td style=\"border: 1px solid #000; padding: 8px 12px;\">Available Housing Color<\/td>\n<td style=\"border: 1px solid #000; padding: 8px 12px;\">Black, Green (custom colors on request)<\/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;\">0.4\u202fmm \/ 0.5\u202fmm H65 brass<\/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;\">PCB Pin Pitch<\/td>\n<td style=\"border: 1px solid #000; padding: 8px 12px;\">22.5\u202fmm<\/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 these PCB fuse holders &amp; clips accessories for 5.2&#215;20\u202fmm fuses, confirm fuse dimension, system AC\u2011DC voltage and continuous operating\u2011current first. Select matching\u2011rating 5.2x20mm tubular fuses and reserve a 1.25\u20111.5\u00d7 safety margin to avoid over\u2011heating under continuous\u2011load. Choose black or green housing variant according to your PCBA visual\u2011layout requirements. Follow official 22.5\u202fmm pin\u2011pitch PCB layout drawing for pad design to guarantee soldering reliability and stable contact performance. This is PCB\u2011mount accessory; proper enclosure protection shall be considered in final finished\u2011equipment design.<\/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 5.2 \u00d7 20\u202fmm glass \/ ceramic tubular cartridge fuse according to circuit\u2011protection requirements.<\/p>\n<p>2. Design PCB through\u2011hole pads strictly follow 22.5\u202fmm pin\u2011pitch 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 PBT \/ PA plastic housing.<\/p>\n<p>4. Insert tubular fuse fully into clip 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\/PTF-77-pcb-fuse-holder.pdf\">PTF-77 pcb fuse holder<\/a><\/p>\n<p><script type=\"application\/ld+json\">\n{\n  \"@context\": \"https:\/\/schema.org\",\n  \"@type\": \"FAQPage\",\n  \"mainEntity\": [\n    {\n      \"@type\": \"Question\",\n      \"name\": \"What fuse size are these pcb fuse holders & clips compatible with?\",\n      \"acceptedAnswer\": {\n        \"@type\": \"Answer\",\n        \"text\": \"They fit standard 5.2 \u00d7 20\u202fmm glass and ceramic tubular cartridge fuses, widely\u2011used as PCB\u2011mount fuse accessories for low\u2011voltage electronics.\"\n      }\n    },\n    {\n      \"@type\": \"Question\",\n      \"name\": \"What are the electrical ratings of this fuse\u2011clip accessory?\",\n      \"acceptedAnswer\": {\n        \"@type\": \"Answer\",\n        \"text\": \"Rated current range 0.1\u20116.3A; rated voltage 125V \/ 250V for both AC and DC circuits.\"\n      }\n    },\n    {\n      \"@type\": \"Question\",\n      \"name\": \"What housing material and color\u2011options are available?\",\n      \"acceptedAnswer\": {\n        \"@type\": \"Answer\",\n        \"text\": \"Housing material PBT \/ PA with UL94\u202fV\u20110 flame\u2011retardant grade; available in black and green, custom colors are accepted on request.\"\n      }\n    },\n    {\n      \"@type\": \"Question\",\n      \"name\": \"What are insulation and dielectric\u2011strength parameters?\",\n      \"acceptedAnswer\": {\n        \"@type\": \"Answer\",\n        \"text\": \"Contact resistance \uff1c5\u202fm\u03a9, insulation resistance\uff1e100\u202fM\u03a9, power\u2011frequency withstand voltage 3000V AC for reliable PCB\u2011side safety performance.\"\n      }\n    },\n    {\n      \"@type\": \"Question\",\n      \"name\": \"What PCB pin\u2011pitch and mounting style?\",\n      \"acceptedAnswer\": {\n        \"@type\": \"Answer\",\n        \"text\": \"22.5\u202fmm pin\u2011pitch through\u2011hole PCB soldering mount, compatible with wave\u2011soldering mass\u2011production process for printed circuit boards.\"\n      }\n    },\n    {\n      \"@type\": \"Question\",\n      \"name\": \"Where are these black pcb fuse holders & clips commonly applied?\",\n      \"acceptedAnswer\": {\n        \"@type\": \"Answer\",\n        \"text\": \"Mainly used as fuse accessories for power adapters, household appliances, test instruments, LED drivers, communication\u2011equipment and various consumer\u2011electronic PCB over\u2011current\u2011protection circuits.\"\n      }\n    }\n  ]\n}\n<\/script><\/p>\n","protected":false},"excerpt":{"rendered":"<p>Industrial\u2011grade black PCB\u2011mount fuse holders &amp; clips accessories for 5.2\u00d720mm glass &amp; ceramic cartridge fuses, PBT\/PA UL94 V0 flame\u2011retardant housing, 0.4\/0.5mm H65 brass terminals, rated 0.1\u20116.3A 125V\/250V AC\/DC, 3000V AC withstand voltage, &gt;100M\u03a9 insulation resistance, through\u2011hole 22.5mm pin\u2011pitch soldering mount, black housing variant for power adapters, household appliances and PCB\u2011level over\u2011current protection accessories.<\/p>","protected":false},"featured_media":4073,"comment_status":"closed","ping_status":"closed","template":"","meta":[],"product_brand":[],"product_cat":[148],"product_tag":[],"class_list":["post-4290","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\/hi\/wp-json\/wp\/v2\/product\/4290","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/essfuse.com\/hi\/wp-json\/wp\/v2\/product"}],"about":[{"href":"https:\/\/essfuse.com\/hi\/wp-json\/wp\/v2\/types\/product"}],"replies":[{"embeddable":true,"href":"https:\/\/essfuse.com\/hi\/wp-json\/wp\/v2\/comments?post=4290"}],"version-history":[{"count":3,"href":"https:\/\/essfuse.com\/hi\/wp-json\/wp\/v2\/product\/4290\/revisions"}],"predecessor-version":[{"id":15479,"href":"https:\/\/essfuse.com\/hi\/wp-json\/wp\/v2\/product\/4290\/revisions\/15479"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/essfuse.com\/hi\/wp-json\/wp\/v2\/media\/4073"}],"wp:attachment":[{"href":"https:\/\/essfuse.com\/hi\/wp-json\/wp\/v2\/media?parent=4290"}],"wp:term":[{"taxonomy":"product_brand","embeddable":true,"href":"https:\/\/essfuse.com\/hi\/wp-json\/wp\/v2\/product_brand?post=4290"},{"taxonomy":"product_cat","embeddable":true,"href":"https:\/\/essfuse.com\/hi\/wp-json\/wp\/v2\/product_cat?post=4290"},{"taxonomy":"product_tag","embeddable":true,"href":"https:\/\/essfuse.com\/hi\/wp-json\/wp\/v2\/product_tag?post=4290"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}