{"id":959,"date":"2026-07-19T18:43:00","date_gmt":"2026-07-19T10:43:00","guid":{"rendered":"https:\/\/lemaele.com\/blog\/micro-switch-vs-reed-switch-comparison\/"},"modified":"2026-07-24T17:23:13","modified_gmt":"2026-07-24T09:23:13","slug":"micro-switch-vs-reed-switch-comparison","status":"publish","type":"post","link":"https:\/\/lemaele.com\/fr\/blog\/micro-switch-vs-reed-switch-comparison\/","title":{"rendered":"Micro Switch vs Reed Switch for OEM Position Sensing"},"content":{"rendered":"<div class=\"b2b-article\">\n<p style=\"margin:0 0 16px;line-height:1.7\"><strong>Micro switches and reed switches solve different sensing problems: one changes state from controlled mechanical movement, while the other changes state from a correctly positioned magnetic field.<\/strong> Select from the installed mechanism, contact\/load requirements, mounting tolerance, environmental exposure, and validation plan\u2014not from a generic \u201cnon-contact\u201d label.<\/p>\n<figure style=\"margin:26px 0;text-align:center\" class=\"wp-block-image size-large b2b-article-figure\"><img style=\"max-width:640px;width:100%;height:auto;display:block;margin:0 auto;border-radius:8px\" src=\"https:\/\/lemaele.com\/wp-content\/uploads\/2026\/05\/SW10-Series-Mini-Micro-Switches.5.webp\" alt=\"LEMA switch component for OEM micro switch position-sensing comparison\" loading=\"lazy\" decoding=\"async\" title=\"\"><\/figure>\n<nav class=\"b2b-toc\" style=\"background:#f5f8fa;padding:16px 20px;border-radius:8px;margin:0 0 24px\">\n<h2 style=\"margin:42px 0 14px\">Sommaire<\/h2>\n<ul style=\"margin:0 0 18px 1.2em;line-height:1.7\">\n<li style=\"margin:0 0 8px\"><a style=\"color:#f27c00;text-decoration:underline\" href=\"#part-1-what-is-the-functional-difference-between-micro-and-reed-switches\">Part 1. What is the functional difference between micro and reed switches?<\/a><\/li>\n<li style=\"margin:0 0 8px\"><a style=\"color:#f27c00;text-decoration:underline\" href=\"#part-2-when-does-mechanical-actuation-favor-a-micro-switch\">Part 2. When does mechanical actuation favor a micro switch?<\/a><\/li>\n<li style=\"margin:0 0 8px\"><a style=\"color:#f27c00;text-decoration:underline\" href=\"#part-3-when-does-a-magnetically-actuated-reed-switch-fit-better\">Part 3. When does a magnetically actuated reed switch fit better?<\/a><\/li>\n<li style=\"margin:0 0 8px\"><a style=\"color:#f27c00;text-decoration:underline\" href=\"#part-4-how-do-contact-behavior-and-load-affect-the-choice\">Part 4. How do contact behavior and load affect the choice?<\/a><\/li>\n<li style=\"margin:0 0 8px\"><a style=\"color:#f27c00;text-decoration:underline\" href=\"#part-5-which-mounting-and-environmental-checks-matter\">Part 5. Which mounting and environmental checks matter?<\/a><\/li>\n<li style=\"margin:0 0 8px\"><a style=\"color:#f27c00;text-decoration:underline\" href=\"#part-6-what-belongs-in-the-selection-rfq-and-fit-boundary\">Part 6. What belongs in the selection RFQ and Fit Boundary?<\/a><\/li>\n<li style=\"margin:0 0 8px\"><a style=\"color:#f27c00;text-decoration:underline\" href=\"#part-7-how-can-lema-support-a-mechanical-switch-inquiry\">Part 7. How can LEMA support a mechanical-switch inquiry?<\/a><\/li>\n<\/ul>\n<\/nav>\n<h2 style=\"margin:42px 0 14px\" id=\"part-1-what-is-the-functional-difference-between-micro-and-reed-switches\">Part 1. What is the functional difference between micro and reed switches?<\/h2>\n<p style=\"margin:0 0 16px;line-height:1.7\">A micro switch uses a plunger, lever, roller, or button to produce a snap action at a defined mechanical travel. A reed switch is actuated by a magnetic field; its result depends on magnet strength, position, orientation, and the installed gap.<\/p>\n<table style=\"width:100%;border-collapse:collapse\">\n<thead>\n<tr>\n<th style=\"border:1px solid #d9e1e8;padding:9px 12px;background:#f5f8fa;text-align:left\">Crit\u00e8re de d\u00e9cision<\/th>\n<th style=\"border:1px solid #d9e1e8;padding:9px 12px;background:#f5f8fa;text-align:left\">Micro switch<\/th>\n<th style=\"border:1px solid #d9e1e8;padding:9px 12px;background:#f5f8fa;text-align:left\">Reed switch<\/th>\n<\/tr>\n<\/thead>\n<tbody>\n<tr>\n<td style=\"border:1px solid #d9e1e8;padding:9px 12px\">Actuation input<\/td>\n<td style=\"border:1px solid #d9e1e8;padding:9px 12px\">Mechanical travel<\/td>\n<td style=\"border:1px solid #d9e1e8;padding:9px 12px\">Magnetic field and gap<\/td>\n<\/tr>\n<tr>\n<td style=\"border:1px solid #d9e1e8;padding:9px 12px\">Primary integration question<\/td>\n<td style=\"border:1px solid #d9e1e8;padding:9px 12px\">Actuator path and overtravel<\/td>\n<td style=\"border:1px solid #d9e1e8;padding:9px 12px\">Magnet geometry and repeatability<\/td>\n<\/tr>\n<tr>\n<td style=\"border:1px solid #d9e1e8;padding:9px 12px\">Selection evidence<\/td>\n<td style=\"border:1px solid #d9e1e8;padding:9px 12px\">Model drawing and circuit duty<\/td>\n<td style=\"border:1px solid #d9e1e8;padding:9px 12px\">Sensor\/magnet assembly data and circuit duty<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<h2 style=\"margin:42px 0 14px\" id=\"part-2-when-does-mechanical-actuation-favor-a-micro-switch\">Part 2. When does mechanical actuation favor a micro switch?<\/h2>\n<p style=\"margin:0 0 16px;line-height:1.7\">A micro switch fits when a moving feature can provide repeatable mechanical travel and the design can control force, side load, and overtravel. Cams, doors, levers, and mechanism end positions are typical examples.<\/p>\n<p style=\"margin:0 0 16px;line-height:1.7\">For variants of the mechanical interface, compare the <a style=\"color:#f27c00;text-decoration:underline\" href=\"https:\/\/lemaele.com\/fr\/blog\/microswitch-button-definition-working-principle-and-applications\/\">button actuator behavior<\/a> et le <a style=\"color:#f27c00;text-decoration:underline\" href=\"https:\/\/lemaele.com\/fr\/blog\/long-arm-micro-switch-selection-guide\/\">solution d\u2019actionnement m\u00e9canique \u00e0 bras long<\/a> guides.<\/p>\n<h2 style=\"margin:42px 0 14px\" id=\"part-3-when-does-a-magnetically-actuated-reed-switch-fit-better\">Part 3. When does a magnetically actuated reed switch fit better?<\/h2>\n<p style=\"margin:0 0 16px;line-height:1.7\">A reed switch can fit when a physical gap or enclosure boundary makes mechanical contact undesirable and the assembly can hold the magnet geometry within the required range. The magnet, housing, cable, and mounting tolerance must be reviewed together.<\/p>\n<p style=\"margin:0 0 16px;line-height:1.7\">Neither magnetic actuation nor a sealed component label removes the need to validate the final enclosure and operating environment.<\/p>\n<h2 style=\"margin:42px 0 14px\" id=\"part-4-how-do-contact-behavior-and-load-affect-the-choice\">Part 4. How do contact behavior and load affect the choice?<\/h2>\n<figure style=\"margin:26px 0;text-align:center\" class=\"wp-block-image size-large b2b-article-figure\"><img style=\"max-width:640px;width:100%;height:auto;display:block;margin:0 auto;border-radius:8px\" src=\"https:\/\/lemaele.com\/wp-content\/uploads\/2026\/05\/KW10-0Q-Super-Mini-Micro-Switch.3.webp\" alt=\"LEMA switch detail for mechanical actuator and mounting review\" loading=\"lazy\" decoding=\"async\" title=\"\"><\/figure>\n<p style=\"margin:0 0 16px;line-height:1.7\">Contact load, inrush, switching frequency, and controller input all affect the choice. A change in actuation technology does not authorize a higher load or eliminate protection requirements.<\/p>\n<table style=\"width:100%;border-collapse:collapse\">\n<thead>\n<tr>\n<th style=\"border:1px solid #d9e1e8;padding:9px 12px;background:#f5f8fa;text-align:left\">Review item<\/th>\n<th style=\"border:1px solid #d9e1e8;padding:9px 12px;background:#f5f8fa;text-align:left\">Question<\/th>\n<th style=\"border:1px solid #d9e1e8;padding:9px 12px;background:#f5f8fa;text-align:left\">Risk if ignored<\/th>\n<\/tr>\n<\/thead>\n<tbody>\n<tr>\n<td style=\"border:1px solid #d9e1e8;padding:9px 12px\">Fonction<\/td>\n<td style=\"border:1px solid #d9e1e8;padding:9px 12px\">\u00c9tat requis du circuit ou de la d\u00e9tection<\/td>\n<td style=\"border:1px solid #d9e1e8;padding:9px 12px\">\u00c9vite un comportement de commande incorrect<\/td>\n<\/tr>\n<tr>\n<td style=\"border:1px solid #d9e1e8;padding:9px 12px\">Interface m\u00e9canique<\/td>\n<td style=\"border:1px solid #d9e1e8;padding:9px 12px\">Course de l'actionneur ou g\u00e9om\u00e9trie de d\u00e9tection<\/td>\n<td style=\"border:1px solid #d9e1e8;padding:9px 12px\">\u00c9vite les d\u00e9fauts de d\u00e9clenchement<\/td>\n<\/tr>\n<tr>\n<td style=\"border:1px solid #d9e1e8;padding:9px 12px\">Interface \u00e9lectrique<\/td>\n<td style=\"border:1px solid #d9e1e8;padding:9px 12px\">Tension, courant, type de charge, entr\u00e9e du contr\u00f4leur<\/td>\n<td style=\"border:1px solid #d9e1e8;padding:9px 12px\">\u00c9vite toute incompatibilit\u00e9 des contacts<\/td>\n<\/tr>\n<tr>\n<td style=\"border:1px solid #d9e1e8;padding:9px 12px\">Environnement<\/td>\n<td style=\"border:1px solid #d9e1e8;padding:9px 12px\">Contamination, vibrations, temp\u00e9rature, niveau de protection contre les infiltrations<\/td>\n<td style=\"border:1px solid #d9e1e8;padding:9px 12px\">D\u00e9finit le p\u00e9rim\u00e8tre de validation<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<p style=\"margin:0 0 16px;line-height:1.7\">Use model-specific documentation and run a complete-circuit test before production release.<\/p>\n<h2 style=\"margin:42px 0 14px\" id=\"part-5-which-mounting-and-environmental-checks-matter\">Part 5. Which mounting and environmental checks matter?<\/h2>\n<p style=\"margin:0 0 16px;line-height:1.7\">Mechanical designs need controlled actuator travel, bracket stiffness, and clearance. Magnetic designs need stable magnet position, orientation, and air-gap control. Vibration, temperature, contamination, and cable routing can shift either system away from its intended operating point.<\/p>\n<ul style=\"margin:0 0 18px 1.2em;line-height:1.7\">\n<li style=\"margin:0 0 8px\">Test tolerance extremes, not only nominal assembly.<\/li>\n<li style=\"margin:0 0 8px\">Check false-trigger behavior under vibration.<\/li>\n<li style=\"margin:0 0 8px\">Validate the final enclosure and cable exit.<\/li>\n<li style=\"margin:0 0 8px\">Record the component and mating-part revision together.<\/li>\n<\/ul>\n<h2 style=\"margin:42px 0 14px\" id=\"part-6-what-belongs-in-the-selection-rfq-and-fit-boundary\">Part 6. What belongs in the selection RFQ and Fit Boundary?<\/h2>\n<h3 style=\"margin:28px 0 12px\">Liste de contr\u00f4le des informations \u00e0 fournir pour la demande de devis (RFQ)<\/h3>\n<ul style=\"margin:0 0 18px 1.2em;line-height:1.7\">\n<li style=\"margin:0 0 8px\">Required function and safe contact state<\/li>\n<li style=\"margin:0 0 8px\">Mechanical path or magnet geometry and tolerance<\/li>\n<li style=\"margin:0 0 8px\">Load, voltage, current, and controller input<\/li>\n<li style=\"margin:0 0 8px\">Mounting drawing, environment, validation target, volume, and sample timing<\/li>\n<\/ul>\n<h3 style=\"margin:28px 0 12px\">Limites d'encombrement<\/h3>\n<p style=\"margin:0 0 16px;line-height:1.7\">This comparison helps establish a selection path. It does not prove that a component meets a safety function, ingress rating, or application approval without the required model and assembly evidence.<\/p>\n<h2 style=\"margin:42px 0 14px\" id=\"part-7-how-can-lema-support-a-mechanical-switch-inquiry\">Part 7. How can LEMA support a mechanical-switch inquiry?<\/h2>\n<figure style=\"margin:26px 0;text-align:center\" class=\"wp-block-image size-large b2b-article-figure\"><img style=\"max-width:640px;width:100%;height:auto;display:block;margin:0 auto;border-radius:8px\" src=\"https:\/\/lemaele.com\/wp-content\/uploads\/2026\/05\/KW7-series-micro-switch.5.webp\" alt=\"LEMA switch product view for OEM sensing component inquiry\" loading=\"lazy\" decoding=\"async\" title=\"\"><\/figure>\n<p style=\"margin:0 0 16px;line-height:1.7\">When the mechanism calls for a mechanical snap-action review, start with the <a style=\"color:#f27c00;text-decoration:underline\" href=\"https:\/\/lemaele.com\/fr\/micro-switch\/\">Gamme de produits de micro-interrupteurs LEMA<\/a>. Provide the actuation drawing and electrical function so the inquiry can be matched to the actual assembly.<\/p>\n<p style=\"margin:0 0 16px;line-height:1.7\"><strong>Recommandation de produit :<\/strong> ask LEMA to review the mechanical-switch option when controlled travel and a documented contact state are available. Do not substitute it for a reed-sensing system without evaluating the mechanism and circuit.<\/p>\n<p style=\"margin:0 0 16px;line-height:1.7\"><a style=\"color:#f27c00;text-decoration:underline\" href=\"https:\/\/lemaele.com\/fr\/contact-us\/\">Envoyer une demande de devis (RFQ) pour un interrupteur OEM<\/a> with the selection inputs.<\/p>\n<h2 id=\"faqs\">FAQ<\/h2>\n<h3>What is the main difference between a micro switch and a reed switch?<\/h3>\n<p>A micro switch changes state through a mechanical actuator, while a reed switch changes state when a correctly positioned magnetic field acts on the reed contacts.<\/p>\n<h3>Is a reed switch always better for sealed sensing?<\/h3>\n<p>No. A sealed sensing requirement still needs a complete assembly review that covers the enclosure, cable exit, magnet position, and test method.<\/p>\n<h3>Does a micro switch need direct contact?<\/h3>\n<p>Its actuator normally needs controlled mechanical travel from a cam, lever, plunger, or similar moving feature.<\/p>\n<h3>Which switch is better for high contact load?<\/h3>\n<p>Choose from model-specific electrical documentation and the load profile. The actuation technology alone does not establish the allowed load.<\/p>\n<h3>Can vibration cause a false signal?<\/h3>\n<p>Either technology can be affected if the mechanism, magnet gap, or actuator travel sits too close to its change point. Validate the complete assembly.<\/p>\n<h3>What should an OEM comparison RFQ include?<\/h3>\n<p>Provide function, safe state, actuation path or magnet geometry, circuit load, environment, mounting drawing, volume, and validation target.<\/p>\n<h2 style=\"margin:42px 0 14px\" id=\"references\">R\u00e9f\u00e9rences<\/h2>\n<ul style=\"margin:0 0 18px 1.2em;line-height:1.7\">\n<li style=\"margin:0 0 8px\"><a style=\"color:#f27c00;text-decoration:underline\" href=\"https:\/\/cototechnology.com\/library\/appnote\/reed-switch-tech-app-info.pdf\" target=\"_blank\" rel=\"noopener\">Coto Technology reed switch technical and applications information<\/a><\/li>\n<li style=\"margin:0 0 8px\"><a style=\"color:#f27c00;text-decoration:underline\" href=\"https:\/\/prod-edam.honeywell.com\/content\/dam\/honeywell-edam\/sps\/siot\/en-us\/products\/switches\/basic-switches\/miniature-basic-switches\/v3-series\/documents\/sps-sst-micro-switch-v3-basic-datasheet.pdf\" target=\"_blank\" rel=\"noopener\">Fiche technique de l'interrupteur de base Honeywell V3<\/a><\/li>\n<\/ul>\n<\/div>","protected":false},"excerpt":{"rendered":"<p>Micro switches and reed switches solve different sensing problems: one changes state from controlled mechanical movement, while the other changes state from a correctly positioned magnetic field. Select from the installed mechanism, contact\/load requirements, mounting tolerance, environmental exposure, and validation plan\u2014not from a generic \u201cnon-contact\u201d label. Contents Part 1. What is the functional difference between [&hellip;]<\/p>\n","protected":false},"author":6,"featured_media":23,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[1],"tags":[],"class_list":["post-959","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-blog"],"_links":{"self":[{"href":"https:\/\/lemaele.com\/fr\/wp-json\/wp\/v2\/posts\/959","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/lemaele.com\/fr\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/lemaele.com\/fr\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/lemaele.com\/fr\/wp-json\/wp\/v2\/users\/6"}],"replies":[{"embeddable":true,"href":"https:\/\/lemaele.com\/fr\/wp-json\/wp\/v2\/comments?post=959"}],"version-history":[{"count":3,"href":"https:\/\/lemaele.com\/fr\/wp-json\/wp\/v2\/posts\/959\/revisions"}],"predecessor-version":[{"id":1055,"href":"https:\/\/lemaele.com\/fr\/wp-json\/wp\/v2\/posts\/959\/revisions\/1055"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/lemaele.com\/fr\/wp-json\/wp\/v2\/media\/23"}],"wp:attachment":[{"href":"https:\/\/lemaele.com\/fr\/wp-json\/wp\/v2\/media?parent=959"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/lemaele.com\/fr\/wp-json\/wp\/v2\/categories?post=959"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/lemaele.com\/fr\/wp-json\/wp\/v2\/tags?post=959"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}