{"id":3653,"date":"2025-07-18T08:28:00","date_gmt":"2025-07-18T00:28:00","guid":{"rendered":"https:\/\/www.topfastpcb.com\/?p=3653"},"modified":"2025-07-17T19:54:51","modified_gmt":"2025-07-17T11:54:51","slug":"how-to-test-resistors-on-a-pcb-board","status":"publish","type":"post","link":"https:\/\/www.topfastpcb.com\/es\/blog\/how-to-test-resistors-on-a-pcb-board\/","title":{"rendered":"\u00bfC\u00f3mo probar resistencias en una placa de circuito impreso?"},"content":{"rendered":"<div id=\"ez-toc-container\" class=\"ez-toc-v2_0_74 counter-hierarchy ez-toc-counter ez-toc-custom ez-toc-container-direction\">\n<div class=\"ez-toc-title-container\">\n<p class=\"ez-toc-title\" style=\"cursor:inherit\">Tabla de contenidos<\/p>\n<span class=\"ez-toc-title-toggle\"><\/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.topfastpcb.com\/es\/blog\/how-to-test-resistors-on-a-pcb-board\/#1_Safety_Preparations\" >1. Preparativos de seguridad<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-2\" href=\"https:\/\/www.topfastpcb.com\/es\/blog\/how-to-test-resistors-on-a-pcb-board\/#2_Multimeter_Selection\" >2. Selecci\u00f3n del mult\u00edmetro<\/a><ul class='ez-toc-list-level-3' ><li class='ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-3\" href=\"https:\/\/www.topfastpcb.com\/es\/blog\/how-to-test-resistors-on-a-pcb-board\/#Recommended_Digital_Multimeter_Specifications\" >Especificaciones recomendadas del mult\u00edmetro digital<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-4\" href=\"https:\/\/www.topfastpcb.com\/es\/blog\/how-to-test-resistors-on-a-pcb-board\/#Range_Selection_Guidelines\" >Pautas de selecci\u00f3n de la gama<\/a><\/li><\/ul><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-5\" href=\"https:\/\/www.topfastpcb.com\/es\/blog\/how-to-test-resistors-on-a-pcb-board\/#3_Key_Measurement_Techniques\" >3. Principales t\u00e9cnicas de medici\u00f3n<\/a><ul class='ez-toc-list-level-3' ><li class='ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-6\" href=\"https:\/\/www.topfastpcb.com\/es\/blog\/how-to-test-resistors-on-a-pcb-board\/#Offline_Measurement_Recommended_Method\" >Medici\u00f3n fuera de l\u00ednea (m\u00e9todo recomendado)<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-7\" href=\"https:\/\/www.topfastpcb.com\/es\/blog\/how-to-test-resistors-on-a-pcb-board\/#Online_Measurement_Emergency_Method\" >Medici\u00f3n en l\u00ednea (m\u00e9todo de emergencia)<\/a><\/li><\/ul><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-8\" href=\"https:\/\/www.topfastpcb.com\/es\/blog\/how-to-test-resistors-on-a-pcb-board\/#4_Error_Analysis_and_Quality_Control\" >4. An\u00e1lisis de errores y control de calidad<\/a><ul class='ez-toc-list-level-3' ><li class='ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-9\" href=\"https:\/\/www.topfastpcb.com\/es\/blog\/how-to-test-resistors-on-a-pcb-board\/#Common_Error_Sources\" >Fuentes habituales de error<\/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.topfastpcb.com\/es\/blog\/how-to-test-resistors-on-a-pcb-board\/#Quality_Assessment_Standards\" >Normas de evaluaci\u00f3n de la calidad<\/a><\/li><\/ul><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-11\" href=\"https:\/\/www.topfastpcb.com\/es\/blog\/how-to-test-resistors-on-a-pcb-board\/#5_Advanced_Application_Techniques\" >5. T\u00e9cnicas avanzadas de aplicaci\u00f3n<\/a><ul class='ez-toc-list-level-3' ><li class='ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-12\" href=\"https:\/\/www.topfastpcb.com\/es\/blog\/how-to-test-resistors-on-a-pcb-board\/#Precision_Resistor_Measurement\" >Medici\u00f3n de resistencias de precisi\u00f3n<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-13\" href=\"https:\/\/www.topfastpcb.com\/es\/blog\/how-to-test-resistors-on-a-pcb-board\/#Special_Resistor_Testing\" >Pruebas de resistencias especiales<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-14\" href=\"https:\/\/www.topfastpcb.com\/es\/blog\/how-to-test-resistors-on-a-pcb-board\/#Batch_Testing_Solutions\" >Soluciones de pruebas por lotes<\/a><\/li><\/ul><\/li><\/ul><\/nav><\/div>\n<h2 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"1_Safety_Preparations\"><\/span>1. Preparativos de seguridad<span class=\"ez-toc-section-end\"><\/span><\/h2><p>La seguridad es siempre la m\u00e1xima prioridad a la hora de realizar cualquier medici\u00f3n electr\u00f3nica. Para PCB <a href=\"https:\/\/www.topfastpcb.com\/es\/blog\/the-resistor\/\">resistencia<\/a> pruebas, debe hacerlo:<\/p><ul class=\"wp-block-list\"><li><strong>Desconexi\u00f3n total de la alimentaci\u00f3n<\/strong>: Desenchufa todas las fuentes de alimentaci\u00f3n, incluidas las pilas y los adaptadores de corriente.<\/li>\n\n<li><strong>Tratamiento del alta<\/strong>: Descargar condensadores de alta capacidad (utilizar una resistencia de 10k\u03a9\/5W para la descarga).<\/li>\n\n<li><strong>Protecci\u00f3n ESD<\/strong>: Utilice una mu\u00f1equera antiest\u00e1tica y una alfombrilla antiest\u00e1tica en el banco de trabajo.<\/li>\n\n<li><strong>Control del medio ambiente<\/strong>: Aseg\u00farese de que el espacio de trabajo est\u00e9 seco, bien ventilado y mantenga una humedad relativa de 30-70%.<\/li><\/ul><blockquote class=\"wp-block-quote is-layout-flow wp-block-quote-is-layout-flow\"><p>Consejo profesional: Para placas de circuitos de alto voltaje (&gt;60V), espere al menos 5 minutos para asegurar la descarga completa antes de proceder.<\/p><\/blockquote><div class=\"wp-block-image\"><figure class=\"aligncenter size-full\"><img loading=\"lazy\" decoding=\"async\" width=\"600\" height=\"402\" src=\"https:\/\/www.topfastpcb.com\/wp-content\/uploads\/2025\/07\/test-resistors.jpg\" alt=\"resistencias de prueba\" class=\"wp-image-3654\" srcset=\"https:\/\/www.topfastpcb.com\/wp-content\/uploads\/2025\/07\/test-resistors.jpg 600w, https:\/\/www.topfastpcb.com\/wp-content\/uploads\/2025\/07\/test-resistors-300x201.jpg 300w, https:\/\/www.topfastpcb.com\/wp-content\/uploads\/2025\/07\/test-resistors-18x12.jpg 18w\" sizes=\"auto, (max-width: 600px) 100vw, 600px\" \/><\/figure><\/div><h2 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"2_Multimeter_Selection\"><\/span>2. Selecci\u00f3n del mult\u00edmetro<span class=\"ez-toc-section-end\"><\/span><\/h2><p>La elecci\u00f3n del instrumento de medici\u00f3n adecuado influye directamente en la precisi\u00f3n de los resultados de las pruebas:<\/p><h3 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"Recommended_Digital_Multimeter_Specifications\"><\/span>Especificaciones recomendadas del mult\u00edmetro digital<span class=\"ez-toc-section-end\"><\/span><\/h3><ul class=\"wp-block-list\"><li><strong>Requisitos b\u00e1sicos<\/strong>:<\/li>\n\n<li>Precisi\u00f3n: Al menos \u00b10,5% + 3 d\u00edgitos<\/li>\n\n<li>Rango de resistencia: 200\u03a9 - 20M\u03a9<\/li>\n\n<li>Corriente de prueba: &lt;1mA (para evitar da\u00f1ar componentes sensibles)<\/li>\n\n<li><strong>Opciones avanzadas<\/strong>:<\/li>\n\n<li>Medici\u00f3n Kelvin a 4 hilos (elimina los efectos de la resistencia del cable)<\/li>\n\n<li>Auto-ranging<\/li>\n\n<li>Funci\u00f3n de registro de datos<\/li><\/ul><h3 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"Range_Selection_Guidelines\"><\/span>Pautas de selecci\u00f3n de la gama<span class=\"ez-toc-section-end\"><\/span><\/h3><figure class=\"wp-block-table\"><table class=\"has-fixed-layout\"><thead><tr><th>Resistencia nominal<\/th><th>Gama recomendada<\/th><th>Resoluci\u00f3n<\/th><\/tr><\/thead><tbody><tr><td>&lt;200\u03a9<\/td><td>Alcance 200\u03a9<\/td><td>0.1\u03a9<\/td><\/tr><tr><td>200\u03a9-2k\u03a9<\/td><td>Rango de 2k\u03a9<\/td><td>1\u03a9<\/td><\/tr><tr><td>2k\u03a9-20k\u03a9<\/td><td>Rango de 20k\u03a9<\/td><td>10\u03a9<\/td><\/tr><tr><td>&gt;20k\u03a9<\/td><td>Alcance autom\u00e1tico<\/td><td>&#8211;<\/td><\/tr><\/tbody><\/table><\/figure><div class=\"wp-block-image\"><figure class=\"aligncenter size-full\"><img loading=\"lazy\" decoding=\"async\" width=\"600\" height=\"402\" src=\"https:\/\/www.topfastpcb.com\/wp-content\/uploads\/2025\/07\/test-resistors-3.jpg\" alt=\"resistencias de prueba\" class=\"wp-image-3655\" srcset=\"https:\/\/www.topfastpcb.com\/wp-content\/uploads\/2025\/07\/test-resistors-3.jpg 600w, https:\/\/www.topfastpcb.com\/wp-content\/uploads\/2025\/07\/test-resistors-3-300x201.jpg 300w, https:\/\/www.topfastpcb.com\/wp-content\/uploads\/2025\/07\/test-resistors-3-18x12.jpg 18w\" sizes=\"auto, (max-width: 600px) 100vw, 600px\" \/><\/figure><\/div><h2 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"3_Key_Measurement_Techniques\"><\/span>3. Principales t\u00e9cnicas de medici\u00f3n<span class=\"ez-toc-section-end\"><\/span><\/h2><h3 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"Offline_Measurement_Recommended_Method\"><\/span>Medici\u00f3n fuera de l\u00ednea (m\u00e9todo recomendado)<span class=\"ez-toc-section-end\"><\/span><\/h3><ul class=\"wp-block-list\"><li><strong>Aislamiento de componentes<\/strong>:<\/li><\/ul><ul class=\"wp-block-list\"><li>Utilice una bomba desoldadora o una pistola de aire caliente para retirar un extremo de la resistencia.<\/li>\n\n<li>Para las resistencias SMD, levante suavemente un extremo con unas pinzas<\/li><\/ul><ul class=\"wp-block-list\"><li><strong>M\u00e9todo de contacto<\/strong>:<\/li><\/ul><ul class=\"wp-block-list\"><li>Resistencias pasantes: Colocar las sondas perpendiculares a los conductores<\/li>\n\n<li>Resistencias SMD: Utilizar sondas de punta fina (ideal 0,5 mm de di\u00e1metro).<\/li>\n\n<li>Componentes en miniatura: Se recomienda utilizar ganchos de prueba<\/li><\/ul><ul class=\"wp-block-list\"><li><strong>Interpretaci\u00f3n de la lectura<\/strong>:<\/li><\/ul><ul class=\"wp-block-list\"><li>Valor normal: Dentro de \u00b1 tolerancia del valor nominal<\/li>\n\n<li>Condiciones anormales:<ul class=\"wp-block-list\"><li>Indicaci\u00f3n \"OL\": Fallo de circuito abierto<\/li>\n\n<li>Cerca de 0\u03a9: Fallo por cortocircuito<\/li>\n\n<li>Fluctuaci\u00f3n inestable: Mal contacto interno<\/li><\/ul><\/li><\/ul><h3 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"Online_Measurement_Emergency_Method\"><\/span>Medici\u00f3n en l\u00ednea (m\u00e9todo de emergencia)<span class=\"ez-toc-section-end\"><\/span><\/h3><ul class=\"wp-block-list\"><li><strong>An\u00e1lisis de circuitos equivalentes<\/strong>:<br>Dibuje un esquema parcial del circuito, calcule la resistencia equivalente en paralelo<\/li>\n\n<li><strong>M\u00e9todo de ca\u00edda de tensi\u00f3n<\/strong>:<br>Mide la tensi\u00f3n (V) a trav\u00e9s de la resistencia, utiliza la corriente conocida (I) para calcular R=V\/I<\/li>\n\n<li><strong>M\u00e9todo de comparaci\u00f3n<\/strong>:<br>Medir resistencias id\u00e9nticas en el mismo circuito como referencia<\/li><\/ul><h2 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"4_Error_Analysis_and_Quality_Control\"><\/span>4. An\u00e1lisis de errores y control de calidad<span class=\"ez-toc-section-end\"><\/span><\/h2><h3 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"Common_Error_Sources\"><\/span>Fuentes habituales de error<span class=\"ez-toc-section-end\"><\/span><\/h3><figure class=\"wp-block-table\"><table class=\"has-fixed-layout\"><thead><tr><th>Tipo de error<\/th><th>Nivel de impacto<\/th><th>Soluci\u00f3n<\/th><\/tr><\/thead><tbody><tr><td>Resistencia de contacto<\/td><td>\u00b1(1-10\u03a9)<\/td><td>Utilice una medici\u00f3n de 4 hilos<\/td><\/tr><tr><td>Desviaci\u00f3n de la temperatura<\/td><td>\u00b10,4%\/\u00b0C<\/td><td>Registre la temperatura ambiente y compense<\/td><\/tr><tr><td>Interferencias EMI<\/td><td>Error aleatorio<\/td><td>Utilice cables de prueba apantallados<\/td><\/tr><tr><td>Oxidaci\u00f3n de la sonda<\/td><td>Error +5%<\/td><td>Limpiar regularmente las puntas de las sondas<\/td><\/tr><\/tbody><\/table><\/figure><h3 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"Quality_Assessment_Standards\"><\/span>Normas de evaluaci\u00f3n de la calidad<span class=\"ez-toc-section-end\"><\/span><\/h3><p>Seg\u00fan la norma IPC-A-600G:<\/p><ul class=\"wp-block-list\"><li>Pasa: Valor medido dentro de \u00b110% del valor nominal (resistencias est\u00e1ndar)<\/li>\n\n<li>Fracasa:<\/li>\n\n<li>Resistencia superior a \u00b110%<\/li>\n\n<li>Lecturas inestables (variaci\u00f3n &gt;5%)<\/li>\n\n<li>Da\u00f1os f\u00edsicos (grietas, quemaduras, etc.)<\/li><\/ul><div class=\"wp-block-image\"><figure class=\"aligncenter size-full\"><img loading=\"lazy\" decoding=\"async\" width=\"600\" height=\"402\" src=\"https:\/\/www.topfastpcb.com\/wp-content\/uploads\/2025\/07\/test-resistors-2.jpg\" alt=\"resistencias de prueba\" class=\"wp-image-3656\" srcset=\"https:\/\/www.topfastpcb.com\/wp-content\/uploads\/2025\/07\/test-resistors-2.jpg 600w, https:\/\/www.topfastpcb.com\/wp-content\/uploads\/2025\/07\/test-resistors-2-300x201.jpg 300w, https:\/\/www.topfastpcb.com\/wp-content\/uploads\/2025\/07\/test-resistors-2-18x12.jpg 18w\" sizes=\"auto, (max-width: 600px) 100vw, 600px\" \/><\/figure><\/div><h2 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"5_Advanced_Application_Techniques\"><\/span>5. T\u00e9cnicas avanzadas de aplicaci\u00f3n<span class=\"ez-toc-section-end\"><\/span><\/h2><h3 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"Precision_Resistor_Measurement\"><\/span>Medici\u00f3n de resistencias de precisi\u00f3n<span class=\"ez-toc-section-end\"><\/span><\/h3><ul class=\"wp-block-list\"><li>M\u00e9todo de corriente constante: Utilizar una fuente de corriente de 1mA + un volt\u00edmetro de alta precisi\u00f3n.<\/li>\n\n<li>Compensaci\u00f3n de temperatura: Registrar la temperatura ambiente, convertir mediante la f\u00f3rmula R25=Rt\/[1+\u03b1(T-25)].<\/li><\/ul><h3 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"Special_Resistor_Testing\"><\/span>Pruebas de resistencias especiales<span class=\"ez-toc-section-end\"><\/span><\/h3><ul class=\"wp-block-list\"><li><strong>Resistencias fusibles<\/strong>: Requiere prueba de sobrecorriente despu\u00e9s de la medici\u00f3n<\/li>\n\n<li><strong>NTC\/PTC<\/strong>: Mide la curva de resistencia a diferentes temperaturas<\/li>\n\n<li><strong>Resistencias de alto voltaje<\/strong>: Utilice un comprobador de aislamiento (500 V CC)<\/li><\/ul><h3 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"Batch_Testing_Solutions\"><\/span>Soluciones de pruebas por lotes<span class=\"ez-toc-section-end\"><\/span><\/h3><ul class=\"wp-block-list\"><li>Banco de pruebas automatizado + esc\u00e1ner m\u00faltiplex<\/li>\n\n<li>An\u00e1lisis estad\u00edstico de los valores de CPK (requisito &gt;1,33)<\/li><\/ul>","protected":false},"excerpt":{"rendered":"<p>Un m\u00e9todo profesional para probar resistencias de PCB utilizando un mult\u00edmetro, que abarca normas de seguridad, selecci\u00f3n de instrumentos y pasos de medici\u00f3n espec\u00edficos. Este an\u00e1lisis detallado incluye t\u00e9cnicas de medici\u00f3n offline\/online, an\u00e1lisis de fuentes de error y criterios de evaluaci\u00f3n de la calidad de acuerdo con las normas IPC, as\u00ed como t\u00e9cnicas de medici\u00f3n de resistencias de precisi\u00f3n y soluciones de pruebas por lotes.<\/p>","protected":false},"author":1,"featured_media":3657,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[109],"tags":[325,324],"class_list":["post-3653","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-faq","tag-resistors","tag-test-resistors"],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v25.1 - https:\/\/yoast.com\/wordpress\/plugins\/seo\/ -->\n<title>How to test resistors on a PCB board? - Topfastpcb<\/title>\n<meta name=\"description\" content=\"PCB Resistor Testing Methods: Multimeter Measurement, Error Analysis Methods, and Quality Control Standards. 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