{"id":86474,"date":"2024-08-24T14:00:53","date_gmt":"2024-08-24T12:00:53","guid":{"rendered":"https:\/\/botland.com.pl\/blog\/bt138-what-is-it-specifications-diagram-price-and-reviews\/"},"modified":"2026-04-08T10:52:28","modified_gmt":"2026-04-08T08:52:28","slug":"bt138-what-is-it-specifications-diagram-price-and-reviews","status":"publish","type":"post","link":"https:\/\/botland.store\/blog\/bt138-what-is-it-specifications-diagram-price-and-reviews\/","title":{"rendered":"BT138 &#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\"> 4<\/span> <span class=\"rt-label rt-postfix\">min.<\/span><\/span>\t\t<div data-elementor-type=\"wp-post\" data-elementor-id=\"86474\" class=\"elementor elementor-86474 elementor-75613\" data-elementor-post-type=\"post\">\n\t\t\t\t\t\t<section class=\"elementor-section elementor-top-section elementor-element elementor-element-ff74448 elementor-section-boxed elementor-section-height-default elementor-section-height-default\" data-id=\"ff74448\" 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-5e72d91\" data-id=\"5e72d91\" 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-1ab8fe9 elementor-widget elementor-widget-text-editor\" data-id=\"1ab8fe9\" 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>Wondering what is hidden under the symbol BT138? Ahead of you is a comprehensive article that will take you through both the basic information about this popular electronic component and delve into its technical data and practical application.<br \/>Find out why the BT138 is so often chosen by electronics professionals and enthusiasts. Find out how it affects the functioning of the devices in which it is used, and what opinions are expressed by its users. Is it worth your interest? We invite you to read more!<\/p>\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-28c402f elementor-widget elementor-widget-heading\" data-id=\"28c402f\" 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\">Introduction to discuss BT138 semiconductor<\/h2>\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-3f5a64d elementor-widget elementor-widget-text-editor\" data-id=\"3f5a64d\" 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>Have you ever wondered what the <a href=\"https:\/\/botland.store\/triac\/1281-triac-bt138-600e-600v-12a-tht-5pcs-5904422355975.html\" target=\"_blank\" rel=\"noopener\" data-wpel-link=\"internal\"><strong>BT138<\/strong><\/a>? It is a popular <a href=\"https:\/\/botland.com.pl\/205-triaki\" target=\"_blank\" rel=\"noopener\" data-wpel-link=\"internal\"><strong>triac<\/strong><\/a>, used in a variety of electronic constructions. It is important to familiarize yourself with its specifications, schematic diagram and price to get a good understanding of its application area. If you are no stranger to contact with electronics, certainly BT138 is not a mystery to you. However, if you are just beginning your adventure with this topic, we want to describe this extremely important component in as much detail as possible.<\/p><p>BT138 is a semiconductor element that has found its place in many branches of electronics. What are its main features?<\/p><p>Here they are:<\/p><ul style=\"font-size: 16px; background-color: #ffffff;\"><li style=\"font-size: 16px;\"><span style=\"font-weight: bolder;\">Maximum power<\/span> &#8211; The BT138 is capable of transferring large amounts of power to its output;<\/li><li style=\"font-size: 16px;\"><span style=\"font-weight: bolder;\">reliability<\/span> &#8211; this triac has a reputation for its reliability and durability;<\/li><li style=\"font-size: 16px;\"><span style=\"font-weight: bolder;\">versatility<\/span> &#8211; the BT138 will work well for a wide range of projects, from simple circuits to advanced systems.<\/li><\/ul><p>Those interested in this topic should take a closer look at the schematic, prices and other users&#8217; reviews of the BT138.<br \/>Remember that a well-chosen semiconductor is the key to the success of your project.<\/p>\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-88ee5c3 elementor-widget elementor-widget-heading\" data-id=\"88ee5c3\" 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\">What exactly is BT138?<\/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-b715c81 elementor-section-boxed elementor-section-height-default elementor-section-height-default\" data-id=\"b715c81\" 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-383a457\" data-id=\"383a457\" 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-bb2fe87 elementor-widget elementor-widget-text-editor\" data-id=\"bb2fe87\" 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 href=\"https:\/\/botland.store\/triac\/1281-triac-bt138-600e-600v-12a-tht-5pcs-5904422355975.html\" target=\"_blank\" rel=\"noopener\" data-wpel-link=\"internal\"><strong>BT138<\/strong><\/a> is a small semiconductor that owes its status primarily to its functionality. It is used most often as a triac, that is, an element that controls the flow of current in electronic circuits.<\/p><p><a href=\"https:\/\/botland.store\/205-triac\" target=\"_blank\" rel=\"noopener\" data-wpel-link=\"internal\"><strong>Triac<\/strong><\/a> is a semiconductor element that has the ability to control current in both the conduction and blocking directions, and allows current to flow according to a sinusoidal wave. As a triac, the BT138 plays an important role in many devices.<\/p><p>Due to its versatility and reliability, it is often used both in industry and by enthusiasts.<\/p>\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-8a97e4a\" data-id=\"8a97e4a\" 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-21b1191 elementor-widget elementor-widget-image\" data-id=\"21b1191\" 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\/2024\/02\/01281_2_kwadrat.jpg\" data-elementor-open-lightbox=\"yes\" data-elementor-lightbox-title=\"01281_2_kwadrat\" data-e-action-hash=\"#elementor-action%3Aaction%3Dlightbox%26settings%3DeyJpZCI6ODYyNTcsInVybCI6Imh0dHBzOlwvXC9ib3RsYW5kLnN0b3JlXC9ibG9nXC93cC1jb250ZW50XC91cGxvYWRzXC8yMDI0XC8wMlwvMDEyODFfMl9rd2FkcmF0LmpwZyJ9\" data-wpel-link=\"internal\">\n\t\t\t\t\t\t\t<img fetchpriority=\"high\" decoding=\"async\" width=\"300\" height=\"300\" src=\"https:\/\/botland.store\/blog\/wp-content\/uploads\/2024\/02\/01281_2_kwadrat-300x300.jpg\" class=\"attachment-medium size-medium wp-image-86257\" alt=\"\" srcset=\"https:\/\/botland.store\/blog\/wp-content\/uploads\/2024\/02\/01281_2_kwadrat-300x300.jpg 300w, https:\/\/botland.store\/blog\/wp-content\/uploads\/2024\/02\/01281_2_kwadrat-1024x1024.jpg 1024w, https:\/\/botland.store\/blog\/wp-content\/uploads\/2024\/02\/01281_2_kwadrat-768x768.jpg 768w, https:\/\/botland.store\/blog\/wp-content\/uploads\/2024\/02\/01281_2_kwadrat.jpg 1080w\" sizes=\"(max-width: 300px) 100vw, 300px\" \/>\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\">Triac BT138-600E 600V\/12A - 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-aea541a elementor-align-center elementor-widget elementor-widget-button\" data-id=\"aea541a\" 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.store\/triac\/1281-triac-bt138-600e-600v-12a-tht-5pcs-5904422355975.html\" target=\"_blank\" 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-99ea621 elementor-widget elementor-widget-spacer\" data-id=\"99ea621\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"spacer.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t<div class=\"elementor-spacer\">\n\t\t\t<div class=\"elementor-spacer-inner\"><\/div>\n\t\t<\/div>\n\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-6539251 elementor-widget elementor-widget-text-editor\" data-id=\"6539251\" 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><strong>The BT138<\/strong> is used in a wide variety of devices and structures. For example, it is often used in lighting, power management, motor control systems, as well as in air conditioning and heating equipment. Thanks to its features, the BT138 is an ideal choice for those looking for a reliable and affordable triac. Regardless of the complexity of the project, the BT138 will always provide a solid foundation for the functionality of any device in which it is used.<\/p>\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-857b1e6 elementor-widget elementor-widget-heading\" data-id=\"857b1e6\" 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\">The most important technical parameters of BT138<\/h2>\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-6b5c336 elementor-widget elementor-widget-text-editor\" data-id=\"6b5c336\" 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>In technical terms, <a href=\"https:\/\/botland.store\/triac\/1281-triac-bt138-600e-600v-12a-tht-5pcs-5904422355975.html\" target=\"_blank\" rel=\"noopener\" data-wpel-link=\"internal\"><strong>BT138<\/strong><\/a> features a justifiable range of specifications that make it ideal for many applications. Its technical specifications indicate extremely diverse and versatile functionality. Discussing the technical parameters of the BT138, it is worth noting, first of all, that it is a triac, which is characterized by a rated voltage of 600V. The maximum rated current of 12A is also undeniably important.<\/p><p>The BT138&#8217;s specifications include many other key aspects worth pointing out, such as:<\/p><ul style=\"font-size: 16px; background-color: #ffffff;\"><li style=\"font-size: 16px;\"><span style=\"font-weight: bolder;\">operating temperature range<\/span> &#8211; from -40\u00b0C to 125\u00b0C, which guarantees its stable operation even in extreme conditions;<\/li><li style=\"font-size: 16px;\"><span style=\"font-weight: bolder;\">turn-on time characteristics<\/span> &#8211; this is a parameter that allows you to control the speed at which current flows.<br \/>For the BT138, it is typically 2\u00b5s;<\/li><li style=\"font-size: 16px;\"><span style=\"font-weight: bolder;\">gate voltage<\/span> &#8211; the maximum gate control current is 5mA, which is low enough not to cause damage to other circuit components;<\/li><li style=\"font-size: 16px;\"><span style=\"font-weight: bolder;\">maximum gate voltage<\/span> &#8211; amounting to 1.3V, which guarantees safe and effective control.<\/li><\/ul><p>Of course, it is important to keep in mind that the particular ways in which the BT138 is used may require adjustments to the above parameters. It is important to understand these specifications so that you can make good use of the BT138&#8217;s potential in your project.<\/p>\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-0e5ac82 elementor-widget elementor-widget-heading\" data-id=\"0e5ac82\" 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\">BT138 triac application diagram<\/h2>\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-bede5ce elementor-widget elementor-widget-text-editor\" data-id=\"bede5ce\" 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>Application diagram <a href=\"https:\/\/botland.store\/triac\/1281-triac-bt138-600e-600v-12a-tht-5pcs-5904422355975.html\" target=\"_blank\" rel=\"noopener\" data-wpel-link=\"internal\"><strong>BT138<\/strong><\/a> is crucial to understanding how this versatile triac can be used effectively in various electronic circuits. The approach to creating such a schematic begins with analyzing the needs of a specific project and selecting the appropriate components to work with the BT138 in a circuit.<\/p><p>In a practical application diagram of the BT138, this triac is usually controlled by a capacitor, resistor and Zener diode.<br \/>Such a circuit provides the right conditions for the triac to function, allowing control of the supply current.<\/p><p>For advanced systems, the BT138 can be controlled by a microcontroller, allowing more precise management of current flow.<br \/>Familiarizing yourself with the BT138 application diagram is definitely one of the key steps in realizing the potential of this triac in your project.<\/p>\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-61e106d elementor-widget elementor-widget-heading\" data-id=\"61e106d\" 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\">BT138 semiconductor guide price<\/h2>\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-b6e5c84 elementor-widget elementor-widget-text-editor\" data-id=\"b6e5c84\" 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>When considering the purchase of a<a href=\"https:\/\/botland.store\/triac\/1281-triac-bt138-600e-600v-12a-tht-5pcs-5904422355975.html\" target=\"_blank\" rel=\"noopener\" data-wpel-link=\"internal\"><strong> BT138 triac<\/strong><\/a>, the question of price cannot be overlooked. Prices of electronic components can vary depending on many factors, and BT138 is no exception. Analyzing the available offers on the market, it can be seen that the price of BT138 usually fluctuates between a few and a dozen zlotys per piece.<\/p><p>However, it is worth noting that the price of BT138 may be affected by such factors as:<\/p><ul style=\"font-size: 16px; background-color: #ffffff;\"><li style=\"font-size: 16px;\"><span style=\"font-weight: bolder;\">Batch size<\/span> &#8211; the rule is simple, the more pieces we buy, the lower the unit price;<\/li><li style=\"font-size: 16px;\"><span style=\"font-weight: bolder;\">version of the component<\/span> &#8211; there are different variants of <span style=\"font-weight: bolder;\">the<\/span> bt138 on the market, which can affect the price differences;<\/li><li style=\"font-size: 16px;\"><span style=\"font-weight: bolder;\">place of purchase<\/span> &#8211; prices can vary depending on where you buy, with online purchases usually being cheaper;<\/li><li style=\"font-size: 16px;\"><span style=\"font-weight: bolder;\">brand<\/span> &#8211; some brands offer higher quality products, which can affect the higher price.<\/li><\/ul><p>Remember that it is best to make price comparisons at various sources before making a final purchase decision.<br \/>This approach will allow you to find the most cost-effective offer and save money on the purchase of the BT138 component.<\/p>\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-3f59492 elementor-widget elementor-widget-heading\" data-id=\"3f59492\" 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\">User reviews on BT138<\/h2>\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-77f6051 elementor-widget elementor-widget-text-editor\" data-id=\"77f6051\" 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>When considering the choice of <a href=\"https:\/\/botland.store\/triac\/1281-triac-bt138-600e-600v-12a-tht-5pcs-5904422355975.html\" target=\"_blank\" rel=\"noopener\" data-wpel-link=\"internal\"><strong>BT138 triac<\/strong><\/a>, it is worth paying attention to the opinions of other users. Their experiences often confirm the advantages of this component, which were discussed earlier, such as reliability, durability and versatility. Users praise the BT138 for its ability to be used in a variety of projects &#8211; from simple circuits to advanced systems. The feedback shows that it is a very functional and proven solution that the semiconductor market offers.<\/p><p>Users emphasize that the BT138 is also easy to use, making it ideal for people of all experience levels &#8211; from professionals to hobbyists. So the reviews are unanimous &#8211; the BT138 is a choice worth considering when constructing a variety of electronic circuits.<\/p>\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>What exactly is the BT138?<br \/>\nLearn about its technical data and user reviews about it.<br \/>\nFind out what is the approximate price of this semiconductor.  <\/p>\n","protected":false},"author":22,"featured_media":86267,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"_acf_changed":false,"footnotes":""},"categories":[7,179],"tags":[],"class_list":["post-86474","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 v27.3 - https:\/\/yoast.com\/product\/yoast-seo-wordpress\/ -->\n<title>BT138 - What is it? 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