{"id":8202,"date":"2025-07-01T17:00:53","date_gmt":"2025-07-01T09:00:53","guid":{"rendered":"https:\/\/www.wehopower.com\/?post_type=news&#038;p=8202"},"modified":"2026-08-31T14:16:51","modified_gmt":"2026-08-31T06:16:51","slug":"inductive-proximity-sensor-npn-vs-pnp","status":"publish","type":"news","link":"https:\/\/www.wehopower.com\/es\/news\/inductive-proximity-sensor-npn-vs-pnp\/","title":{"rendered":"Sensor de proximidad inductivo NPN vs PNP: 5 diferencias principales"},"content":{"rendered":"<div id=\"ez-toc-container\" class=\"ez-toc-v2_0_86 counter-hierarchy ez-toc-counter ez-toc-grey ez-toc-container-direction\">\n<div class=\"ez-toc-title-container\">\n<p class=\"ez-toc-title\" style=\"cursor:inherit\">Tabla de contenido<\/p>\n<span class=\"ez-toc-title-toggle\"><a href=\"#\" class=\"ez-toc-pull-right ez-toc-btn ez-toc-btn-xs ez-toc-btn-default ez-toc-toggle\" aria-label=\"Alternar tabla de contenidos\"><span class=\"ez-toc-js-icon-con\"><span class=\"\"><span class=\"eztoc-hide\" style=\"display:none;\">Palanca<\/span><span class=\"ez-toc-icon-toggle-span\"><svg style=\"fill: #999;color:#999\" xmlns=\"http:\/\/www.w3.org\/2000\/svg\" class=\"list-377408\" width=\"20px\" height=\"20px\" viewbox=\"0 0 24 24\" fill=\"none\"><path d=\"M6 6H4v2h2V6zm14 0H8v2h12V6zM4 11h2v2H4v-2zm16 0H8v2h12v-2zM4 16h2v2H4v-2zm16 0H8v2h12v-2z\" fill=\"currentColor\"><\/path><\/svg><svg style=\"fill: #999;color:#999\" class=\"arrow-unsorted-368013\" xmlns=\"http:\/\/www.w3.org\/2000\/svg\" width=\"10px\" height=\"10px\" viewbox=\"0 0 24 24\" version=\"1.2\" baseprofile=\"tiny\"><path d=\"M18.2 9.3l-6.2-6.3-6.2 6.3c-.2.2-.3.4-.3.7s.1.5.3.7c.2.2.4.3.7.3h11c.3 0 .5-.1.7-.3.2-.2.3-.5.3-.7s-.1-.5-.3-.7zM5.8 14.7l6.2 6.3 6.2-6.3c.2-.2.3-.5.3-.7s-.1-.5-.3-.7c-.2-.2-.4-.3-.7-.3h-11c-.3 0-.5.1-.7.3-.2.2-.3.5-.3.7s.1.5.3.7z\"\/><\/svg><\/span><\/span><\/span><\/a><\/span><\/div>\n<nav><ul class='ez-toc-list ez-toc-list-level-1' ><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-1\" href=\"https:\/\/www.wehopower.com\/es\/news\/inductive-proximity-sensor-npn-vs-pnp\/#Introduction\" >Introducci\u00f3n<\/a><ul class='ez-toc-list-level-3' ><li class='ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-2\" href=\"https:\/\/www.wehopower.com\/es\/news\/inductive-proximity-sensor-npn-vs-pnp\/#How_Inductive_Proximity_Sensors_Work\" >C\u00f3mo funcionan los sensores de proximidad inductivos<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-3\" href=\"https:\/\/www.wehopower.com\/es\/news\/inductive-proximity-sensor-npn-vs-pnp\/#Why_Understanding_NPN_vs_PNP_Matters\" >Por qu\u00e9 es importante comprender NPN frente a PNP<\/a><\/li><\/ul><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-4\" href=\"https:\/\/www.wehopower.com\/es\/news\/inductive-proximity-sensor-npn-vs-pnp\/#Understanding_NPN_and_PNP\" >Entendiendo NPN y PNP<\/a><ul class='ez-toc-list-level-3' ><li class='ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-5\" href=\"https:\/\/www.wehopower.com\/es\/news\/inductive-proximity-sensor-npn-vs-pnp\/#What_is_an_NPN_Sensor\" >\u00bfQu\u00e9 es un sensor NPN?<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-6\" href=\"https:\/\/www.wehopower.com\/es\/news\/inductive-proximity-sensor-npn-vs-pnp\/#What_is_a_PNP_Sensor\" >\u00bfQu\u00e9 es un sensor PNP?<\/a><\/li><\/ul><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-7\" href=\"https:\/\/www.wehopower.com\/es\/news\/inductive-proximity-sensor-npn-vs-pnp\/#5_Main_Differences_Between_NPN_and_PNP_Sensors\" >5 diferencias principales entre sensores NPN y PNP<\/a><ul class='ez-toc-list-level-3' ><li class='ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-8\" href=\"https:\/\/www.wehopower.com\/es\/news\/inductive-proximity-sensor-npn-vs-pnp\/#ON_Logic_Level\" >Nivel l\u00f3gico ON<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-9\" href=\"https:\/\/www.wehopower.com\/es\/news\/inductive-proximity-sensor-npn-vs-pnp\/#Wiring_Setup\" >Configuraci\u00f3n del cableado<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-10\" href=\"https:\/\/www.wehopower.com\/es\/news\/inductive-proximity-sensor-npn-vs-pnp\/#Regional_Use\" >Uso regional<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-11\" href=\"https:\/\/www.wehopower.com\/es\/news\/inductive-proximity-sensor-npn-vs-pnp\/#Common_Confusion\" >Confusi\u00f3n com\u00fan<\/a><\/li><\/ul><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-12\" href=\"https:\/\/www.wehopower.com\/es\/news\/inductive-proximity-sensor-npn-vs-pnp\/#Conclusion\" >Conclusi\u00f3n<\/a><\/li><\/ul><\/nav><\/div>\n<h2 data-start=\"137\" data-end=\"155\"><span class=\"ez-toc-section\" id=\"Introduction\"><\/span>Introducci\u00f3n<span class=\"ez-toc-section-end\"><\/span><\/h2>\n<h3 data-start=\"157\" data-end=\"203\"><span class=\"ez-toc-section\" id=\"How_Inductive_Proximity_Sensors_Work\"><\/span>C\u00f3mo funcionan los sensores de proximidad inductivos<span class=\"ez-toc-section-end\"><\/span><\/h3>\n<p data-start=\"204\" data-end=\"450\"><a href=\"https:\/\/www.weho-power.com\/product\/lja12-long-cylindrical-inductive-proximity-switch\/\" target=\"_blank\" rel=\"noopener\">Sensores de proximidad inductivos<\/a> Detectar objetos met\u00e1licos sin tocarlos. Utilizan un campo electromagn\u00e9tico y cuando un objeto met\u00e1lico entra en este campo, el sensor env\u00eda una se\u00f1al. Estos sensores son comunes en las f\u00e1bricas para ayudar a que las m\u00e1quinas funcionen sin problemas.<\/p>\n<h3 data-start=\"452\" data-end=\"498\"><a href=\"https:\/\/www.weho-power.com\/product\/lja18-long-cylindrical-inductive-proximity-switch\/\" target=\"_blank\" rel=\"noopener\"><img fetchpriority=\"high\" decoding=\"async\" class=\"wp-image-6983 alignnone\" src=\"https:\/\/www.weho-power.com\/wp-content\/uploads\/2024\/08\/LJA30-Long-Cylindrical-Inductive-Proximity-Switch-9.jpg\" alt=\"Sensor de proximidad inductivo NPN vs PNP: 5 diferencias principales t\u00edtulo=\" width=\"324\" height=\"324\" inductive proximity sensor npn vs pnp: main differences title=\"\" srcset=\"https:\/\/i1.wp.com\/www.wehopower.com\/wp-content\/uploads\/2024\/08\/LJA30-Long-Cylindrical-Inductive-Proximity-Switch-9.jpg?quality=85&strip=all 800w, https:\/\/i1.wp.com\/www.wehopower.com\/wp-content\/uploads\/2024\/08\/LJA30-Long-Cylindrical-Inductive-Proximity-Switch-9-300x300.jpg?quality=85&strip=all 300w, https:\/\/i1.wp.com\/www.wehopower.com\/wp-content\/uploads\/2024\/08\/LJA30-Long-Cylindrical-Inductive-Proximity-Switch-9-500x500.jpg?quality=85&strip=all 500w, https:\/\/i1.wp.com\/www.wehopower.com\/wp-content\/uploads\/2024\/08\/LJA30-Long-Cylindrical-Inductive-Proximity-Switch-9-768x768.jpg?quality=85&strip=all 768w\" sizes=\"(max-width: 324px) 100vw, 324px\" \/><\/a><\/h3>\n<p data-start=\"452\" data-end=\"498\">Aprenda m\u00e1s: <a href=\"https:\/\/www.wehopower.com\/es\/news\/what-is-a-proximity-sensor\/\">\u00bfQu\u00e9 es un sensor de proximidad?<\/a><\/p>\n<p data-start=\"452\" data-end=\"498\">Aprenda m\u00e1s: <a href=\"https:\/\/www.wehopower.com\/es\/news\/how-does-a-proximity-sensor-work\/\">\u00bfC\u00f3mo funciona un sensor de proximidad?<\/a><\/p>\n<h3 data-start=\"452\" data-end=\"498\"><span class=\"ez-toc-section\" id=\"Why_Understanding_NPN_vs_PNP_Matters\"><\/span>Por qu\u00e9 es importante comprender NPN frente a PNP<span class=\"ez-toc-section-end\"><\/span><\/h3>\n<p data-start=\"499\" data-end=\"681\">Conociendo la diferencia entre <a href=\"https:\/\/www.weho-power.com\/product\/lja30-long-cylindrical-inductive-proximity-switch\/\" target=\"_blank\" rel=\"noopener\">Sensores NPN y PNP<\/a> Es importante porque afecta la forma en que conecta el sensor a su sistema de control. Usar el tipo incorrecto puede causar errores o da\u00f1os.<\/p>\n<h2 data-start=\"683\" data-end=\"714\"><span class=\"ez-toc-section\" id=\"Understanding_NPN_and_PNP\"><\/span>Entendiendo NPN y PNP<span class=\"ez-toc-section-end\"><\/span><\/h2>\n<h3 data-start=\"716\" data-end=\"748\"><span class=\"ez-toc-section\" id=\"What_is_an_NPN_Sensor\"><\/span>\u00bfQu\u00e9 es un sensor NPN?<span class=\"ez-toc-section-end\"><\/span><\/h3>\n<p data-start=\"749\" data-end=\"878\">Un <a href=\"https:\/\/www.weho-power.com\/product\/lja12-long-cylindrical-inductive-proximity-switch\/\" target=\"_blank\" rel=\"noopener\">sensor NPN<\/a> Conecta la salida a tierra (negativo) cuando detecta algo. Esto significa que \u201csink\u201d corriente a trav\u00e9s de la carga.<\/p>\n<h3 data-start=\"880\" data-end=\"911\"><span class=\"ez-toc-section\" id=\"What_is_a_PNP_Sensor\"><\/span>\u00bfQu\u00e9 es un sensor PNP?<span class=\"ez-toc-section-end\"><\/span><\/h3>\n<p data-start=\"912\" data-end=\"1015\">A <a href=\"https:\/\/www.weho-power.com\/product\/lja30-long-cylindrical-inductive-proximity-switch\/\" target=\"_blank\" rel=\"noopener\">sensor PNP<\/a> Conecta la salida al voltaje positivo cuando est\u00e1 activo. \u201cSuministra\u201d corriente a la carga.<\/p>\n<h2 data-start=\"1017\" data-end=\"1069\"><span class=\"ez-toc-section\" id=\"5_Main_Differences_Between_NPN_and_PNP_Sensors\"><\/span>5 diferencias principales entre sensores NPN y PNP<span class=\"ez-toc-section-end\"><\/span><\/h2>\n<div class=\"_tableContainer_16hzy_1\">\n<div class=\"_tableWrapper_16hzy_14 group flex w-fit flex-col-reverse\" tabindex=\"-1\">\n<table class=\"w-fit min-w-(--thread-content-width)\" data-start=\"111\" data-end=\"914\">\n<thead data-start=\"111\" data-end=\"224\">\n<tr data-start=\"111\" data-end=\"224\">\n<th data-start=\"111\" data-end=\"133\" data-col-size=\"sm\">Diferencia<\/th>\n<th data-start=\"133\" data-end=\"179\" data-col-size=\"md\">Sensor NPN<\/th>\n<th data-start=\"179\" data-end=\"224\" data-col-size=\"sm\">Sensor PNP<\/th>\n<\/tr>\n<\/thead>\n<tbody data-start=\"338\" data-end=\"914\">\n<tr data-start=\"338\" data-end=\"452\">\n<td data-start=\"338\" data-end=\"361\" data-col-size=\"sm\">Salida de se\u00f1al<\/td>\n<td data-col-size=\"md\" data-start=\"361\" data-end=\"408\">Env\u00eda una se\u00f1al negativa (tierra)<\/td>\n<td data-col-size=\"sm\" data-start=\"408\" data-end=\"452\">Env\u00eda una se\u00f1al de voltaje positivo.<\/td>\n<\/tr>\n<tr data-start=\"453\" data-end=\"567\">\n<td data-start=\"453\" data-end=\"476\" data-col-size=\"sm\">Nivel l\u00f3gico ON<\/td>\n<td data-col-size=\"md\" data-start=\"476\" data-end=\"523\">ENCENDIDO cuando est\u00e1 conectado a tierra (0V)<\/td>\n<td data-col-size=\"sm\" data-start=\"523\" data-end=\"567\">ENCENDIDO cuando se conecta a voltaje positivo<\/td>\n<\/tr>\n<tr data-start=\"568\" data-end=\"682\">\n<td data-start=\"568\" data-end=\"590\" data-col-size=\"sm\">Configuraci\u00f3n del cableado<\/td>\n<td data-col-size=\"md\" data-start=\"590\" data-end=\"638\">Carga cableada entre el suministro positivo y la salida<\/td>\n<td data-col-size=\"sm\" data-start=\"638\" data-end=\"682\">Carga cableada entre salida y tierra.<\/td>\n<\/tr>\n<tr data-start=\"683\" data-end=\"798\">\n<td data-start=\"683\" data-end=\"706\" data-col-size=\"sm\">Uso regional<\/td>\n<td data-start=\"706\" data-end=\"754\" data-col-size=\"md\">M\u00e1s com\u00fan en Asia<\/td>\n<td data-start=\"754\" data-end=\"798\" data-col-size=\"sm\">M\u00e1s com\u00fan en Europa y Am\u00e9rica del Norte.<\/td>\n<\/tr>\n<tr data-start=\"799\" data-end=\"914\">\n<td data-start=\"799\" data-end=\"822\" data-col-size=\"sm\">Confusi\u00f3n com\u00fan<\/td>\n<td data-start=\"822\" data-end=\"870\" data-col-size=\"md\">A menudo se confunde con resultados positivos.<\/td>\n<td data-start=\"870\" data-end=\"914\" data-col-size=\"sm\">A menudo se confunde con resultados negativos.<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<\/div>\n<div tabindex=\"-1\"><\/div>\n<div class=\"_tableWrapper_16hzy_14 group flex w-fit flex-col-reverse\" tabindex=\"-1\"><span style=\"font-size: 30px;\">Salida de se\u00f1al<\/span><\/div>\n<\/div>\n<p data-start=\"1095\" data-end=\"1175\">Los sensores NPN env\u00edan una se\u00f1al negativa (tierra). <a href=\"https:\/\/www.weho-power.com\/product\/lja30-long-cylindrical-inductive-proximity-switch\/\" target=\"_blank\" rel=\"noopener\">sensores PNP<\/a> enviar una se\u00f1al positiva.<\/p>\n<h3 data-start=\"1177\" data-end=\"1201\"><a href=\"https:\/\/www.weho-power.com\/product\/lja18-long-cylindrical-inductive-proximity-switch\/\" target=\"_blank\" rel=\"noopener\"><img decoding=\"async\" class=\"wp-image-7706 alignnone\" src=\"https:\/\/www.weho-power.com\/wp-content\/uploads\/2025\/06\/20250609134018-684673d03e356.webp\" alt=\"Sensor de proximidad inductivo NPN vs PNP: 5 diferencias principales t\u00edtulo=\" width=\"353\" height=\"205\" inductive proximity sensor npn vs pnp: main differences title=\"\"><\/a><\/h3>\n<p data-start=\"1177\" data-end=\"1201\">Aprenda m\u00e1s: <a href=\"https:\/\/www.wehopower.com\/es\/news\/the-switch-mode-power-supply\/\">La fuente de alimentaci\u00f3n de modo conmutado<\/a><\/p>\n<h3 data-start=\"1177\" data-end=\"1201\"><span class=\"ez-toc-section\" id=\"ON_Logic_Level\"><\/span>Nivel l\u00f3gico ON<span class=\"ez-toc-section-end\"><\/span><\/h3>\n<p data-start=\"1202\" data-end=\"1306\"><a href=\"https:\/\/www.weho-power.com\/product\/lja30-long-cylindrical-inductive-proximity-switch\/\" target=\"_blank\" rel=\"noopener\">sensores NPN<\/a> est\u00e1n ENCENDIDOS cuando est\u00e1n conectados a tierra (0V). Los sensores PNP est\u00e1n encendidos cuando se conectan a voltaje positivo.<\/p>\n<h3 data-start=\"1308\" data-end=\"1330\"><span class=\"ez-toc-section\" id=\"Wiring_Setup\"><\/span>Configuraci\u00f3n del cableado<span class=\"ez-toc-section-end\"><\/span><\/h3>\n<p data-start=\"1331\" data-end=\"1467\">Para NPN, la carga est\u00e1 cableada entre el suministro positivo y la salida del sensor. Para PNP, la carga est\u00e1 entre la salida del sensor y tierra.<\/p>\n<h3 data-start=\"1469\" data-end=\"1491\"><span class=\"ez-toc-section\" id=\"Regional_Use\"><\/span>Uso regional<span class=\"ez-toc-section-end\"><\/span><\/h3>\n<p data-start=\"1492\" data-end=\"1581\"><a href=\"https:\/\/www.weho-power.com\/product\/lja12-long-cylindrical-inductive-proximity-switch\/\" target=\"_blank\" rel=\"noopener\">sensores NPN<\/a> son m\u00e1s comunes en Asia. <a href=\"https:\/\/www.weho-power.com\/products\/\" target=\"_blank\" rel=\"noopener\">sensores PNP<\/a> son populares en Europa y Am\u00e9rica del Norte.<\/p>\n<h3 data-start=\"1583\" data-end=\"1609\"><span class=\"ez-toc-section\" id=\"Common_Confusion\"><\/span>Confusi\u00f3n com\u00fan<span class=\"ez-toc-section-end\"><\/span><\/h3>\n<p data-start=\"1610\" data-end=\"1735\">La gente suele confundir qu\u00e9 sensor emite se\u00f1ales positivas o negativas. Depende del cableado y del tipo de transistor del sensor.<\/p>\n<p data-start=\"1610\" data-end=\"1735\">Aprenda m\u00e1s: <a href=\"https:\/\/www.wehopower.com\/es\/news\/how-to-test-an-inductive-sensor-6-methods-you-should-know\/\">C\u00f3mo probar un sensor inductivo<\/a><\/p>\n<h2 data-start=\"1737\" data-end=\"1755\"><span class=\"ez-toc-section\" id=\"Conclusion\"><\/span>Conclusi\u00f3n<span class=\"ez-toc-section-end\"><\/span><\/h2>\n<p data-start=\"1756\" data-end=\"2004\">Tanto NPN como PNP <a href=\"https:\/\/www.weho-power.com\/product\/lja12-long-cylindrical-inductive-proximity-switch\/\" target=\"_blank\" rel=\"noopener\">sensores de proximidad inductivos<\/a> Detecta bien objetos met\u00e1licos. La principal diferencia est\u00e1 en sus se\u00f1ales de salida y cableado. Conocer estas diferencias le ayuda a elegir el sensor correcto y conectarlo correctamente para un funcionamiento seguro y confiable.<\/p>","protected":false},"excerpt":{"rendered":"<p>Introduction How Inductive Proximity Sensors Work Inductive proximity sensors detect metal objects without touching them. They use an electromagnetic field, and when a metal object enters this field, the sensor sends a signal. These sensors are common in factories to help machines work smoothly. Learn More: What is a Proximity Sensor? Learn More: How Does&hellip; <a class=\"more-link\" href=\"https:\/\/www.wehopower.com\/es\/news\/inductive-proximity-sensor-npn-vs-pnp\/\">Continuar leyendo <span class=\"screen-reader-text\">Sensor de proximidad inductivo NPN vs PNP: 5 diferencias principales<\/span><\/a><\/p>","protected":false},"author":1,"featured_media":6939,"parent":0,"menu_order":321,"comment_status":"closed","ping_status":"closed","template":"","format":"standard","meta":{"_acf_changed":false,"_joinchat":[],"footnotes":""},"news_category":[149,148],"class_list":["post-8202","news","type-news","status-publish","format-standard","has-post-thumbnail","hentry","news_category-blog","news_category-industry-news","entry"],"acf":[],"post_mailing_queue_ids":[],"_links":{"self":[{"href":"https:\/\/www.wehopower.com\/es\/wp-json\/wp\/v2\/news\/8202","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.wehopower.com\/es\/wp-json\/wp\/v2\/news"}],"about":[{"href":"https:\/\/www.wehopower.com\/es\/wp-json\/wp\/v2\/types\/news"}],"author":[{"embeddable":true,"href":"https:\/\/www.wehopower.com\/es\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/www.wehopower.com\/es\/wp-json\/wp\/v2\/comments?post=8202"}],"version-history":[{"count":0,"href":"https:\/\/www.wehopower.com\/es\/wp-json\/wp\/v2\/news\/8202\/revisions"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/www.wehopower.com\/es\/wp-json\/wp\/v2\/media\/6939"}],"wp:attachment":[{"href":"https:\/\/www.wehopower.com\/es\/wp-json\/wp\/v2\/media?parent=8202"}],"wp:term":[{"taxonomy":"news_category","embeddable":true,"href":"https:\/\/www.wehopower.com\/es\/wp-json\/wp\/v2\/news_category?post=8202"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}