{"id":31232,"date":"2026-09-26T10:15:24","date_gmt":"2026-09-26T10:15:24","guid":{"rendered":"https:\/\/gfevfuse.com\/?post_type=product&#038;p=31232"},"modified":"2026-11-09T22:16:26","modified_gmt":"2026-11-09T22:16:26","slug":"ptf-77b-pcb-fuse-holder","status":"publish","type":"product","link":"https:\/\/gfevfuse.com\/hi\/product\/ptf-77b-pcb-fuse-holder\/","title":{"rendered":"5x20 \u092e\u093f\u092e\u0940 \u091f\u094d\u092f\u0942\u092c \u092b\u094d\u092f\u0942\u091c \u0915\u0947 \u0932\u093f\u090f PTF-77B \u092a\u0940\u0938\u0940\u092c\u0940 \u092e\u093e\u0909\u0902\u091f \u092b\u094d\u092f\u0942\u091c \u0939\u094b\u0932\u094d\u0921\u0930"},"content":{"rendered":"<pre><code><\/code><\/pre>\n<pre><code><\/code><\/pre>\n<h2>PTF-77B PCB Mount Fuse Holder for 5x20mm Tube Fuses<\/h2>\n<h3>What Is the PTF-77B?<\/h3>\n<p>The PTF-77B is a through-hole PCB mount fuse holder for 5x20mm glass and ceramic tube fuses. It accepts current ratings from 0.1A to 10A at either 125V or 250V AC\/DC. The body uses PBT material rated UL 94 V0, and the contacts are brass for reliable spring pressure.<\/p>\n<h3>PTF-77B vs PTF-77: What&#8217;s the Difference?<\/h3>\n<p>Both models share identical outer dimensions and electrical ratings. They differ only in the PCB solder pin configuration:<\/p>\n<table>\n<thead>\n<tr>\n<th>Feature<\/th>\n<th>PTF-77B<\/th>\n<th>PTF-77<\/th>\n<\/tr>\n<\/thead>\n<tbody>\n<tr>\n<td>Mounting style<\/td>\n<td>Through-hole PCB pins<\/td>\n<td>Alternative pin layout<\/td>\n<\/tr>\n<tr>\n<td>Outer body<\/td>\n<td>Same 5x20mm cavity<\/td>\n<td>Same 5x20mm cavity<\/td>\n<\/tr>\n<tr>\n<td>Ratings<\/td>\n<td>0.1-10A, 125V\/250V AC\/DC<\/td>\n<td>0.1-10A, 125V\/250V AC\/DC<\/td>\n<\/tr>\n<tr>\n<td>Housing<\/td>\n<td>PBT, UL 94 V0<\/td>\n<td>PBT, UL 94 V0<\/td>\n<\/tr>\n<tr>\n<td>Contact material<\/td>\n<td>Brass<\/td>\n<td>Brass<\/td>\n<\/tr>\n<tr>\n<td>Certifications<\/td>\n<td>TUV, cULus<\/td>\n<td>TUV, cULus<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<p>Choose the pin style that matches your PCB footprint. If you are designing a new board, our engineering team can confirm which pin layout fits your land pattern.<\/p>\n<h3>Electrical and Mechanical Specifications<\/h3>\n<ul>\n<li>Fuse size: 5 x 20 mm<\/li>\n<li>Current range: 0.1A to 10A<\/li>\n<li>Voltage: 125V \/ 250V AC\/DC<\/li>\n<li>Power acceptance: 1.6W (at 250V)<\/li>\n<li>Housing: PBT, UL 94 V0<\/li>\n<li>Contact material: Brass<\/li>\n<li>Mounting: Through-hole PCB<\/li>\n<li>Certifications: TUV, cULus<\/li>\n<li>Body colour: Black<\/li>\n<\/ul>\n<h3>Typical Applications<\/h3>\n<ul>\n<li>Consumer electronics power boards<\/li>\n<li>LED driver circuits<\/li>\n<li>Industrial control PCBs<\/li>\n<li>Adapter and charger input protection<\/li>\n<li>Audio equipment PCB-level fuse protection<\/li>\n<\/ul>\n<h3>Datasheet<\/h3>\n<p>[Download PTF-77B specification sheet (PDF)]<\/p>\n<p>For alternative pin configurations, see related model: <a href=\"https:\/\/gfevfuse.com\/wp-content\/uploads\/2026\/09\/PTF-77B-PCB-fuse-holder-1.pdf\">PTF-77B PCB fuse holder<\/a><a href=\"https:\/\/gfevfuse.com\/wp-content\/uploads\/2026\/09\/PTF-77-PCB-PCB-fuse-holder.pdf\">PTF-77 PCB fuse holder<\/a><\/p>\n<hr \/>\n<p>&nbsp;<\/p>\n<h2>FAQ<\/h2>\n<h3>1: What is the difference between PTF-77B and PTF-77?<\/h3>\n<p>A: They share the same body, dimensions, and electrical ratings. The only difference is the PCB solder pin layout.<\/p>\n<h3>2: What size fuse does it accept?<\/h3>\n<p>A: Standard 5x20mm glass or ceramic tube fuses.<\/p>\n<h3>3: What is the current range?<\/h3>\n<p>A: 0.1A to 10A at 125V or 250V AC\/DC.<\/p>\n<h3>4: What certifications does it carry?<\/h3>\n<p>A: TUV and cULus.<\/p>\n<h3>5: Is the housing flame retardant?<\/h3>\n<p>A: Yes, the PBT body is rated UL 94 V0<code> <\/code><\/p>\n<pre><code><\/code><\/pre>\n<p><code><\/code><code><\/code><\/p>\n<pre><code>\r\n<\/code><\/pre>\n<p><code><br \/>\n<\/code><code><\/code><\/p>\n<pre><code>\r\n<\/code><\/pre>\n<h2><code>\u00a0<\/code><\/h2>\n<h4><code><\/code><\/h4>\n","protected":false},"excerpt":{"rendered":"<pre><code>PTF-77B \u092a\u0940\u0938\u0940\u092c\u0940 \u092b\u094d\u092f\u0942\u091c \u0939\u094b\u0932\u094d\u0921\u0930 5x20 \u092e\u093f\u092e\u0940 \u0917\u094d\u0932\u093e\u0938 \u0914\u0930 \u0938\u093f\u0930\u0947\u092e\u093f\u0915 \u091f\u094d\u092f\u0942\u092c \u092b\u094d\u092f\u0942\u091c \u0915\u0947 \u0932\u093f\u090f \u090f\u0915 \u0925\u094d\u0930\u0942-\u0939\u094b\u0932 \u092e\u093e\u0909\u0902\u091f \u0938\u0949\u0915\u0947\u091f \u0939\u0948, \u091c\u094b 125V\/250V AC\/DC \u092a\u0930 0.1-10A \u0915\u0947 \u0932\u093f\u090f \u0930\u0947\u091f\u0947\u0921 \u0939\u0948\u0964 \u0907\u0938\u092e\u0947\u0902 \u092a\u0940\u0924\u0932 \u0915\u0947 \u0915\u0949\u0928\u094d\u091f\u0948\u0915\u094d\u091f\u094d\u0938 \u0915\u0947 \u0938\u093e\u0925 PBT UL94-V0 \u0939\u093e\u0909\u0938\u093f\u0902\u0917 \u0939\u0948\u0964 \u092f\u0939 TUV \u0914\u0930 cULus \u092a\u094d\u0930\u092e\u093e\u0923\u093f\u0924 \u0939\u0948\u0964 \u092b\u094d\u092f\u0942\u091c \u091a\u092f\u0928 \u0938\u0902\u092c\u0902\u0927\u0940 \u092e\u093e\u0930\u094d\u0917\u0926\u0930\u094d\u0936\u0928 \u0915\u0947 \u0932\u093f\u090f, https:\/\/www.iec.ch\/ \u092a\u0930 \u091c\u093e\u090f\u0902\u0964 \u0938\u0902\u092c\u0902\u0927\u093f\u0924 \u092e\u0949\u0921\u0932 PTF-77 \u0915\u0947 \u092a\u093f\u0928 \u0938\u094d\u091f\u093e\u0907\u0932 \u0915\u0940 \u0924\u0941\u0932\u0928\u093e \u0915\u0930\u0947\u0902\u0964.\r\n<\/code><\/pre>","protected":false},"featured_media":32007,"comment_status":"closed","ping_status":"closed","template":"","meta":[],"product_brand":[],"product_cat":[88],"product_tag":[],"class_list":["post-31232","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:\/\/gfevfuse.com\/hi\/wp-json\/wp\/v2\/product\/31232","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/gfevfuse.com\/hi\/wp-json\/wp\/v2\/product"}],"about":[{"href":"https:\/\/gfevfuse.com\/hi\/wp-json\/wp\/v2\/types\/product"}],"replies":[{"embeddable":true,"href":"https:\/\/gfevfuse.com\/hi\/wp-json\/wp\/v2\/comments?post=31232"}],"version-history":[{"count":14,"href":"https:\/\/gfevfuse.com\/hi\/wp-json\/wp\/v2\/product\/31232\/revisions"}],"predecessor-version":[{"id":32558,"href":"https:\/\/gfevfuse.com\/hi\/wp-json\/wp\/v2\/product\/31232\/revisions\/32558"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/gfevfuse.com\/hi\/wp-json\/wp\/v2\/media\/32007"}],"wp:attachment":[{"href":"https:\/\/gfevfuse.com\/hi\/wp-json\/wp\/v2\/media?parent=31232"}],"wp:term":[{"taxonomy":"product_brand","embeddable":true,"href":"https:\/\/gfevfuse.com\/hi\/wp-json\/wp\/v2\/product_brand?post=31232"},{"taxonomy":"product_cat","embeddable":true,"href":"https:\/\/gfevfuse.com\/hi\/wp-json\/wp\/v2\/product_cat?post=31232"},{"taxonomy":"product_tag","embeddable":true,"href":"https:\/\/gfevfuse.com\/hi\/wp-json\/wp\/v2\/product_tag?post=31232"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}