{"id":78682,"date":"2024-04-22T14:00:22","date_gmt":"2024-04-22T12:00:22","guid":{"rendered":"https:\/\/botland.com.pl\/blog\/irfz44n-what-is-it-specifications-diagram-price-and-reviews\/"},"modified":"2026-04-08T10:58:37","modified_gmt":"2026-04-08T08:58:37","slug":"irfz44n-what-is-it-specifications-diagram-price-and-reviews","status":"publish","type":"post","link":"https:\/\/botland.store\/blog\/irfz44n-what-is-it-specifications-diagram-price-and-reviews\/","title":{"rendered":"IRFZ44N &#8211; what is it? Specifications, diagram, price and reviews"},"content":{"rendered":"<span class=\"span-reading-time rt-reading-time\" style=\"display: block;\"><span class=\"rt-label rt-prefix\">Reading time:<\/span> <span class=\"rt-time\"> 3<\/span> <span class=\"rt-label rt-postfix\">min.<\/span><\/span>\t\t<div data-elementor-type=\"wp-post\" data-elementor-id=\"78682\" class=\"elementor elementor-78682 elementor-73396\" data-elementor-post-type=\"post\">\n\t\t\t\t\t\t<section class=\"elementor-section elementor-top-section elementor-element elementor-element-1b3e525d elementor-section-boxed elementor-section-height-default elementor-section-height-default\" data-id=\"1b3e525d\" data-element_type=\"section\" data-e-type=\"section\">\n\t\t\t\t\t\t<div class=\"elementor-container elementor-column-gap-default\">\n\t\t\t\t\t<div class=\"elementor-column elementor-col-100 elementor-top-column elementor-element elementor-element-325c3d1a\" data-id=\"325c3d1a\" data-element_type=\"column\" data-e-type=\"column\">\n\t\t\t<div class=\"elementor-widget-wrap elementor-element-populated\">\n\t\t\t\t\t\t<div class=\"elementor-element elementor-element-fee420c elementor-widget elementor-widget-text-editor\" data-id=\"fee420c\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t<p><a style=\"background-color: #ffffff;\" href=\"https:\/\/botland.com.pl\/24-tranzystory\" target=\"_blank\" rel=\"noopener\" data-wpel-link=\"internal\"><br \/>\n  <span style=\"font-weight: bolder;\">Transistors<\/span><br \/>\n<\/a> have taken on new shapes and specifications since their invention, and actually surprise all the time. Among the popular transistors <a style=\"background-color: #ffffff;\" href=\"https:\/\/botland.com.pl\/91-tranzystory-unipolarne-mosfet\" target=\"_blank\" rel=\"noopener\" data-wpel-link=\"internal\"><br \/>\n  <span style=\"font-weight: bolder;\">MOSFETS<\/span><br \/>\n<\/a> (from <em>Metal-Oxide-Semiconductor Field-Effect Transistor<\/em>) an honorable place is occupied by the <a style=\"background-color: #ffffff;\" href=\"https:\/\/botland.com.pl\/tranzystory-unipolarne-mosfet\/6494-tranzystor-n-mosfet-irfz44n-55v41a-tht-5szt-5904422375102.html\" target=\"_blank\" rel=\"noopener\" data-wpel-link=\"internal\"><br \/>\n  <span style=\"font-weight: bolder;\">IRFZ44N<\/span><br \/>\n<\/a> from International Rectifier, which is now part of Infineon Technologies. This transistor is widely used in power electronics and control, especially in circuits requiring high currents and voltages. Let&#8217;s take a look at why.<\/p>\n\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-35088b9 elementor-widget elementor-widget-heading\" data-id=\"35088b9\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"heading.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t<h2 class=\"elementor-heading-title elementor-size-default\">Technical data IRFZ44N, price<\/h2>\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<section class=\"elementor-section elementor-inner-section elementor-element elementor-element-e061636 elementor-section-boxed elementor-section-height-default elementor-section-height-default\" data-id=\"e061636\" data-element_type=\"section\" data-e-type=\"section\">\n\t\t\t\t\t\t<div class=\"elementor-container elementor-column-gap-default\">\n\t\t\t\t\t<div class=\"elementor-column elementor-col-50 elementor-inner-column elementor-element elementor-element-9e8cc54\" data-id=\"9e8cc54\" data-element_type=\"column\" data-e-type=\"column\">\n\t\t\t<div class=\"elementor-widget-wrap elementor-element-populated\">\n\t\t\t\t\t\t<div class=\"elementor-element elementor-element-98fb2ec elementor-widget elementor-widget-text-editor\" data-id=\"98fb2ec\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t<p><a style=\"background-color: #ffffff;\" href=\"https:\/\/botland.com.pl\/tranzystory-unipolarne-mosfet\/6494-tranzystor-n-mosfet-irfz44n-55v41a-tht-5szt-5904422375102.html\" target=\"_blank\" rel=\"noopener\" data-wpel-link=\"internal\"><br \/>\n  <span style=\"font-weight: bolder;\">IRFZ44N<\/span><br \/>\n<\/a> as<a style=\"background-color: #ffffff;\" href=\"https:\/\/botland.com.pl\/231-n-mosfet\" target=\"_blank\" rel=\"noopener\" data-wpel-link=\"internal\"><br \/>\n  <span style=\"font-weight: bolder;\"> N-channel MOSFET transistor<\/span><br \/>\n<\/a> is best known for its use in high drain current circuits. It works well for switching circuits, since its Rds value is low. The usual N-channel MOSFET IRFZ44N transistor uses a low gate voltage of 4 V.  <\/p>\n<p>However, a threshold voltage of up to 10 V is needed to maintain the maximum drain current. This is why a gate driver circuit is needed to achieve full transistor switching. N-channel MOSFETs are often found in conjunction with microcontrollers such as the <a style=\"background-color: #ffffff;\" href=\"https:\/\/botland.com.pl\/234-arduino\" data-wpel-link=\"internal\">Arduino<\/a>, although alternatively IRLZ44N MOSFETs appear there as well.  <\/p>\n<p>Like other counterparts, the IRFZ44N offers a wide range of applications. When you need to adjust the speed of the motor or the intensity of the lighting, the transistor <a style=\"background-color: #ffffff;\" href=\"https:\/\/botland.com.pl\/tranzystory-unipolarne-mosfet\/6494-tranzystor-n-mosfet-irfz44n-55v41a-tht-5szt-5904422375102.html\" target=\"_blank\" rel=\"noopener\" data-wpel-link=\"internal\"><br \/>\n  <span style=\"font-weight: bolder;\">IRFZ44N<\/span><br \/>\n<\/a> will certainly be a recommendable solution available at <a style=\"background-color: #ffffff;\" href=\"https:\/\/botland.com.pl\/\" target=\"_blank\" rel=\"noopener\" data-wpel-link=\"internal\"><br \/>\n  <span style=\"font-weight: bolder;\">Botland<\/span><br \/>\n<\/a>:<\/p>\n\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/div>\n\t\t\t\t<div class=\"elementor-column elementor-col-50 elementor-inner-column elementor-element elementor-element-2a36ca4\" data-id=\"2a36ca4\" data-element_type=\"column\" data-e-type=\"column\">\n\t\t\t<div class=\"elementor-widget-wrap elementor-element-populated\">\n\t\t\t\t\t\t<div class=\"elementor-element elementor-element-be4811a elementor-widget elementor-widget-image\" data-id=\"be4811a\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"image.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t\t\t\t<figure class=\"wp-caption\">\n\t\t\t\t\t\t\t\t\t\t\t<a href=\"https:\/\/botland.com.pl\/blog\/wp-content\/uploads\/2023\/11\/06494_1_kwadrat.jpg\" data-elementor-open-lightbox=\"yes\" data-elementor-lightbox-title=\"06494_1_kwadrat\" data-e-action-hash=\"#elementor-action%3Aaction%3Dlightbox%26settings%3DeyJpZCI6Nzg2NjcsInVybCI6Imh0dHBzOlwvXC9ib3RsYW5kLnN0b3JlXC9ibG9nXC93cC1jb250ZW50XC91cGxvYWRzXC8yMDIzXC8xMVwvMDY0OTRfMV9rd2FkcmF0LmpwZyJ9\" data-wpel-link=\"internal\">\n\t\t\t\t\t\t\t<img fetchpriority=\"high\" decoding=\"async\" width=\"800\" height=\"800\" src=\"https:\/\/botland.store\/blog\/wp-content\/uploads\/2023\/11\/06494_1_kwadrat-1024x1024.jpg\" class=\"attachment-large size-large wp-image-78667\" alt=\"N-MOSFET IRFZ44N 55V\/41A Transistor - THT - 5 St\u00fcck\" srcset=\"https:\/\/botland.store\/blog\/wp-content\/uploads\/2023\/11\/06494_1_kwadrat-1024x1024.jpg 1024w, https:\/\/botland.store\/blog\/wp-content\/uploads\/2023\/11\/06494_1_kwadrat-300x300.jpg 300w, https:\/\/botland.store\/blog\/wp-content\/uploads\/2023\/11\/06494_1_kwadrat-768x768.jpg 768w, https:\/\/botland.store\/blog\/wp-content\/uploads\/2023\/11\/06494_1_kwadrat.jpg 1080w\" sizes=\"(max-width: 800px) 100vw, 800px\" \/>\t\t\t\t\t\t\t\t<\/a>\n\t\t\t\t\t\t\t\t\t\t\t<figcaption class=\"widget-image-caption wp-caption-text\">N-MOSFET transistor IRFZ44N 55V\/41A - THT - 5pcs.<\/figcaption>\n\t\t\t\t\t\t\t\t\t\t<\/figure>\n\t\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-fcfd7e9 elementor-align-center elementor-widget elementor-widget-button\" data-id=\"fcfd7e9\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"button.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t<div class=\"elementor-button-wrapper\">\n\t\t\t\t\t<a class=\"elementor-button elementor-button-link elementor-size-sm\" href=\"https:\/\/botland.com.pl\/tranzystory-unipolarne-mosfet\/6494-tranzystor-n-mosfet-irfz44n-55v41a-tht-5szt-5904422375102.html\" data-wpel-link=\"internal\">\n\t\t\t\t\t\t<span class=\"elementor-button-content-wrapper\">\n\t\t\t\t\t\t\t\t\t<span class=\"elementor-button-text\">CHECK<\/span>\n\t\t\t\t\t<\/span>\n\t\t\t\t\t<\/a>\n\t\t\t\t<\/div>\n\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/section>\n\t\t\t\t<div class=\"elementor-element elementor-element-7569030 elementor-widget elementor-widget-text-editor\" data-id=\"7569030\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t<ul>\n<li>Maximum VDSS drain-source voltage: 55 V<\/li>\n<li style=\"font-size: 16px;\">Channel resistance Rds: 0.0175 \u03a9<\/li>\n<li style=\"font-size: 16px;\">Power: 83 W<\/li>\n<li style=\"font-size: 16px;\">Housing: TO-220<\/li>\n<li style=\"font-size: 16px;\">Mounting: through-hole THT<\/li>\n<\/ul>\n<p>The TO-220 package is widely preferred for all commercial-industrial applications with power dissipation up to about 50 W. The low thermal resistance and low cost of the TO-220 package contributes to its wide acceptance throughout the industry. The price of five pieces in a set does not exceed 20 zlotys. There is no great surprise here, as the prices of the N-MOSFETs available at Botland do not exceed this threshold by much, and range from a dozen to a maximum of PLN 30 for a package of 5 units.<\/p>\n\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-2e8428d elementor-widget elementor-widget-heading\" data-id=\"2e8428d\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"heading.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t<h2 class=\"elementor-heading-title elementor-size-default\">IRFZ44N configuration<\/h2>\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-4c327bc elementor-widget elementor-widget-text-editor\" data-id=\"4c327bc\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t<p>The IRFZ44N N-MOSFET transistor consists of three main pins\/terminals.<br \/><img decoding=\"async\" src=\"https:\/\/botland.com.pl\/blog\/wp-content\/uploads\/2023\/11\/grafika-itfz44n.png\" width=\"200px\"><\/p>\n<table style=\"background-color: #ffffff; width: 880px;\">\n<tbody>\n<tr>\n<td style=\"border-color: rgba(128, 128, 128, 0.5); background-color: rgba(128, 128, 128, 0.07);\"> <\/td>\n<td style=\"border-color: rgba(128, 128, 128, 0.5); background-color: rgba(128, 128, 128, 0.07);\">Name<\/td>\n<td style=\"border-color: rgba(128, 128, 128, 0.5); background-color: rgba(128, 128, 128, 0.07);\">Description<\/td>\n<\/tr>\n<tr>\n<td style=\"border-color: rgba(128, 128, 128, 0.5);\">1<\/td>\n<td style=\"border-color: rgba(128, 128, 128, 0.5);\">Gate (gate)<\/td>\n<td style=\"border-color: rgba(128, 128, 128, 0.5);\">This terminal is responsible for the controlled polarization of the MOSFET transistor.<\/td>\n<\/tr>\n<tr>\n<td style=\"border-color: rgba(128, 128, 128, 0.5); background-color: rgba(128, 128, 128, 0.07);\">2<\/td>\n<td style=\"border-color: rgba(128, 128, 128, 0.5); background-color: rgba(128, 128, 128, 0.07);\">Drain (drain)<\/td>\n<td style=\"border-color: rgba(128, 128, 128, 0.5); background-color: rgba(128, 128, 128, 0.07);\">In this section, the terminal controls the flow of electricity.<\/td>\n<\/tr>\n<tr>\n<td style=\"border-color: rgba(128, 128, 128, 0.5);\">3<\/td>\n<td style=\"border-color: rgba(128, 128, 128, 0.5);\">Source<\/td>\n<td style=\"border-color: rgba(128, 128, 128, 0.5);\">At this end, the current flows out.<\/p>\n<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-c79bb8e elementor-widget elementor-widget-heading\" data-id=\"c79bb8e\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"heading.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t<h2 class=\"elementor-heading-title elementor-size-default\">IRFZ44N N-MOSFET transistor - opinions.<\/h2>\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-556b7a4 elementor-widget elementor-widget-text-editor\" data-id=\"556b7a4\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t<p>Although these devices function like <span style=\"font-weight: bolder;\">conventional transistors<\/span>, they are specific to voltage control. To start, simply apply the appropriate gate threshold voltage, VGth, to disable or enable the MOSFET transistor. The source and drain terminals are open by default with no gate threshold voltage. However, applying a voltage to the gate closes the source and drain. In most cases, to trigger the gate of the N channel of a MOSFET transistor, you need an <a href=\"https:\/\/botland.com.pl\/234-arduino\" target=\"_blank\" rel=\"noopener\" data-wpel-link=\"internal\"><br \/>\n  <span style=\"font-weight: bolder;\">Arduino<\/span><br \/>\n<\/a>. In other cases, you may need a driver circuit for the N channel of a MOSFET transistor if you plan to work on circuits that require high-power switching and amplification.<\/p>\n<p>Other real-world applications <a href=\"https:\/\/botland.com.pl\/tranzystory-unipolarne-mosfet\/6494-tranzystor-n-mosfet-irfz44n-55v41a-tht-5szt-5904422375102.html\" target=\"_blank\" rel=\"noopener\" data-wpel-link=\"internal\"><br \/>\n  <span style=\"font-weight: bolder;\">IRF-Z44N<\/span><br \/>\n<\/a> include connecting\/disconnecting a power source to a building. Perhaps the most significant advantage of the IRFZ44N N-channel MOSFET is the automation of the switching process; using electrical signals, the user has control over the load. The usual solution is to use a relay or a classic switch. It is worth bearing in mind that the first safety measure to take is to avoid using the device at maximum ratings. Any device that runs at maximum capacity all the time can eventually fail &#8211; the strain on the device from using maximum ratings weakens the circuits.<\/p>\n<p>It is often recommended not to exceed 80% of the maximum rated capacity, and in practice this means that you should exclude 20% from the full specification when using the component. The N-channel MOSFET IRFZ44 transistor is no different. If the drain current rating of the MOSFET amplifier is a maximum of 49 amps, avoid using a load above 39 amps. In addition, always try to keep the transistor between -55\u00b0C and 175\u00b0C. These practices are a guarantee of proper use, including in the proposed applications we have collected below:<\/p>\n<ul style=\"font-size: 16px; background-color: #ffffff;\">\n<li style=\"font-size: 16px;\">Battery chargers,<\/li>\n<li style=\"font-size: 16px;\">Solar battery operation and charging,<\/li>\n<li style=\"font-size: 16px;\">UPS (uninterruptible power supply),<\/li>\n<li style=\"font-size: 16px;\">Motor controller circuits,<\/li>\n<li style=\"font-size: 16px;\">LED flashlights and dimmers,<\/li>\n<li style=\"font-size: 16px;\">Typical applications requiring fast switching.<\/li>\n<\/ul>\n\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-e625038 elementor-widget elementor-widget-heading\" data-id=\"e625038\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"heading.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t<h2 class=\"elementor-heading-title elementor-size-default\">IRFZ44N vs IRLZ44N - differences<\/h2>\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-1d827d9 elementor-widget elementor-widget-text-editor\" data-id=\"1d827d9\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t<p>The difference is only in one letter, so easy to overlook, and although sometimes used as a substitute, IRLZ44N and IRFZ44N are fundamentally different. The IRLZ44N is a logic-level MOSFET transistor. This version uses a gate threshold voltage of 5V. In other words, triggering this MOSFET transistor requires little effort, and therefore no driver IC is needed for this purpose. The IRFZ44N is different. Instead, the MOSFET IC must work with a gate driver and microcontroller. In this way, the MOSFET transistor can be completely triggered. Otherwise, we get only partial turn-on time through the I\/O pin when using a direct 5 V supply. And since there was a mention of microcontrollers, we are getting closer to efficient, functional operation here, for example, the indispensable <a style=\"background-color: #ffffff;\" href=\"https:\/\/botland.com.pl\/arduino-seria-podstawowa-oryginalne-plytki\/1060-arduino-uno-rev3-a000066-7630049200050.html\" data-wpel-link=\"internal\">Arduino Uno<\/a> or the multifunctional <a style=\"background-color: #ffffff;\" href=\"https:\/\/botland.com.pl\/399-raspberry-pi\" data-wpel-link=\"internal\">Raspberry Pi<\/a>.<\/p>\n\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/section>\n\t\t\t\t<\/div>\n\t\t","protected":false},"excerpt":{"rendered":"<p>A generally available component that costs relatively little, yet the practice of use is widespread. We present the IRFZ44N N-MOSFET transistor in a nutshell.<\/p>\n","protected":false},"author":22,"featured_media":78675,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"_acf_changed":false,"footnotes":""},"categories":[7,179],"tags":[],"class_list":["post-78682","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-elektronika","category-kompendium"],"acf":[],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v27.4 - https:\/\/yoast.com\/product\/yoast-seo-wordpress\/ -->\n<title>IRFZ44N - what is it? Specifications, diagram, price and reviews - Botland<\/title>\n<meta name=\"description\" content=\"Technology and Innovation on Botland Blog. Botland&#039;s best online electronics store. 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