{"id":4518,"date":"2026-11-09T02:00:00","date_gmt":"2026-11-09T02:00:00","guid":{"rendered":"https:\/\/onpowbutton.com\/news\/push-button-material-permittivity\/"},"modified":"2026-11-08T04:47:58","modified_gmt":"2026-11-08T04:47:58","slug":"push-button-material-permittivity","status":"publish","type":"post","link":"https:\/\/onpowbutton.com\/ru\/news\/push-button-material-permittivity\/","title":{"rendered":"Push Button Material Permittivity: Read Frequency and Loss Data"},"content":{"rendered":"<style>.onpow-article{font-size:17px;line-height:1.75;overflow-wrap:anywhere}.onpow-article img{max-width:100%;height:auto}.onpow-article figure{margin:28px 0}.onpow-article figcaption{font-size:14px;color:#555}.onpow-table-scroll{max-width:100%;overflow-x:auto}.onpow-article table{border-collapse:collapse;min-width:640px;width:100%}.onpow-article th,.onpow-article td{padding:12px;border:1px solid #ddd;text-align:left}.onpow-article th{background:#f1f4f7}.onpow-video{position:relative;aspect-ratio:16\/9;width:100%}.onpow-video iframe{position:absolute;width:100%;height:100%;border:0}<\/style>\n<article class=\"onpow-article\">\n<nav aria-label=\"Contents\"><strong>Contents<\/strong><\/p>\n<ul>\n<li><a href=\"#section-1\">What relative permittivity and loss data mean<\/a><\/li>\n<li><a href=\"#section-2\">Confirm the method and its edition<\/a><\/li>\n<li><a href=\"#section-3\">Match the material to the actual switch component<\/a><\/li>\n<li><a href=\"#section-4\">Require conditions beside every number<\/a><\/li>\n<li><a href=\"#section-5\">Keep units and reporting conventions clear<\/a><\/li>\n<li><a href=\"#section-6\">Understand what the evidence cannot replace<\/a><\/li>\n<li><a href=\"#section-7\">Evaluate supplier differences with a worked review<\/a><\/li>\n<li><a href=\"#section-8\">Review uncertainty and borderline comparisons<\/a><\/li>\n<li><a href=\"#section-9\">Prepare the material evidence enquiry<\/a><\/li>\n<li><a href=\"#section-10\">Frequently asked questions<\/a><\/li>\n<\/ul>\n<\/nav>\n<p>Push button material permittivity and dielectric dissipation data describe how a specified insulating material responds to an alternating electric field under stated conditions. A useful report identifies the material, measurement frequency, temperature, conditioning and specimen arrangement. These values do not establish the complete switch&#8217;s withstand voltage, insulation resistance or operating rating. Buyers should use them for the material question actually being assessed, then request separate evidence for the assembled control.<\/p>\n<p>For industrial panel procurement, the first task is deciding whether this material property is required by the design. Asking for a dielectric constant without explaining its purpose can produce a technically valid number that does not answer the equipment&#8217;s real question.<\/p>\n<h2 id=\"section-1\">What relative permittivity and loss data mean<\/h2>\n<p>Relative permittivity is a dimensionless way to compare a material&#8217;s dielectric response with a reference. Dissipation factor describes dielectric loss under the stated alternating-field measurement. They are separate quantities and should occupy separate fields in a data review. Do not substitute one for the other because a supplier&#8217;s table uses the broad heading \u201cdielectric properties.\u201d<\/p>\n<p>The <a href=\"https:\/\/webstore.iec.ch\/en\/publication\/34510\" rel=\"noopener\" target=\"_blank\">IEC 62631-2-1 scope<\/a> addresses relative permittivity and dissipation factor of solid insulating materials using AC methods. Its scope is not a complete switch approval. A buyer&#8217;s interpretation should preserve the distinction between a measured material property and the performance of a configured assembly.<\/p>\n<h2 id=\"section-2\">Confirm the method and its edition<\/h2>\n<p>The <a href=\"https:\/\/www.sis.se\/en\/produkter\/metrology-and-measurement-physical-phenomena\/electricity-magnetism-electrical\/other\/iec-62631-2-12018\/\" rel=\"noopener\" target=\"_blank\">Swedish Institute for Standards publication record<\/a> identifies IEC 62631-2-1:2018 and its relationship to the older IEC 60250 publication. If a supplier submits data citing an older method, ask which method and edition the customer specification requires and whether an applicability review is needed.<\/p>\n<p>An older reference is not automatically proof of a defective material. Equally, it should not be silently relabelled as a newer test. Preserve the reported method, then let the responsible reviewer decide whether it meets the purchasing requirement. Where a new measurement is necessary, specify the method in advance.<\/p>\n<figure><img decoding=\"async\" alt=\"ONPOW HBY5-11 \u2014 original manufacturer product photograph\" loading=\"lazy\" src=\"https:\/\/onpowbutton.com\/wp-content\/uploads\/2026\/11\/push-button-material-permittivity-body1-daily20261108.jpg\"\/><figcaption>ONPOW HBY5-11. Product identification example only; this photograph does not establish soldering, biological, chemical, dielectric, thermal or moisture performance or certification. Confirm the exact ordered configuration and tested equipment scope separately.<\/figcaption><\/figure>\n<h2 id=\"section-3\">Match the material to the actual switch component<\/h2>\n<p>Identify which component the report concerns: housing, insulating base, lens or another named part. Ask for a controlled material grade or other adequate traceable identification. \u201cPlastic switch body\u201d is too broad to connect a numerical material value to a particular production part.<\/p>\n<p>The <a href=\"https:\/\/onpowbutton.com\/22mmplasticledscrew-terminal-product\/\">HBY5E1-11 product page<\/a> gives a real ONPOW catalogue identity for an enquiry. The photographs in this guide show product form only. They do not identify a polymer grade or establish that the pictured housing was measured for dielectric properties. Request the material applicability evidence for the exact order code and revision.<\/p>\n<p>Where the supplier uses a plaque or film specimen, document how that specimen relates to the production component. The reviewer may need information about grade, formulation, colour or processing. Ask the manufacturer which differences matter rather than assuming that all versions of a polymer family share one value.<\/p>\n<h2 id=\"section-4\">Require conditions beside every number<\/h2>\n<p>Frequency belongs next to the reported property. So do temperature, conditioning and the stated specimen details. A number copied without its conditions can lose the context needed for a valid comparison. Retain the original table heading and notes when summarizing the report internally.<\/p>\n<p>If two submissions use different frequencies, do not rank them solely by the numerical values. Request comparable measurements or an engineering explanation of why the difference is acceptable for the intended evaluation. A procurement spreadsheet should expose incompatible conditions rather than hide them in a footnote that disappears during quotation comparison.<\/p>\n<p>The following worksheet is a buyer&#8217;s proposed comparison structure. It adds no material limits and supplies no ONPOW performance values.<\/p>\n<div class=\"onpow-table-scroll\">\n<table>\n<thead>\n<tr>\n<th>Report field<\/th>\n<th>What should be identifiable<\/th>\n<th>Clarification needed when absent<\/th>\n<\/tr>\n<\/thead>\n<tbody>\n<tr>\n<td>Material identity<\/td>\n<td>Grade or controlled material code<\/td>\n<td>Which production component uses the tested material?<\/td>\n<\/tr>\n<tr>\n<td>Specimen<\/td>\n<td>Form, dimensions and preparation<\/td>\n<td>Is the specimen representative of the quoted construction?<\/td>\n<\/tr>\n<tr>\n<td>Method<\/td>\n<td>Standard edition and measurement arrangement<\/td>\n<td>What procedure produced the value?<\/td>\n<\/tr>\n<tr>\n<td>Frequency<\/td>\n<td>Stated frequency for each result<\/td>\n<td>Are two reported values actually comparable?<\/td>\n<\/tr>\n<tr>\n<td>Environment<\/td>\n<td>Temperature and material conditioning<\/td>\n<td>Does the number describe a dry or conditioned state?<\/td>\n<\/tr>\n<tr>\n<td>Relative permittivity<\/td>\n<td>Labelled dimensionless result<\/td>\n<td>Was this confused with absolute permittivity or capacitance?<\/td>\n<\/tr>\n<tr>\n<td>Dissipation factor<\/td>\n<td>Labelled result and reporting convention<\/td>\n<td>Is a percentage being compared with a decimal?<\/td>\n<\/tr>\n<tr>\n<td>Data quality<\/td>\n<td>Individual results, uncertainty where reported and limitations<\/td>\n<td>Does the apparent difference exceed the evidence quality?<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<\/div>\n<h2 id=\"section-5\">Keep units and reporting conventions clear<\/h2>\n<p>A reporting mistake can occur even when the underlying measurement is sound. Relative permittivity is dimensionless; capacitance is a property of a particular arrangement and has units. Check which quantity the column actually contains. Do not rename a capacitance measurement \u201cdielectric constant\u201d merely because both relate to dielectric behaviour.<\/p>\n<p>Dissipation factor may be presented using different numerical conventions. Check whether a value is a decimal or a percentage before entering it into a comparison. Preserve the original convention or show an explicit conversion with the original retained. Avoid comparing rounded catalogue figures as if they were precise measurements from identical tests.<\/p>\n<p>If a report provides a graph rather than a single table value, retain the axes, scale, legend and conditions. A point taken from a curve should be labelled as an approximate reading. Do not invent additional significant figures or infer behaviour beyond the measured range.<\/p>\n<figure><img decoding=\"async\" alt=\"ONPOW HBY5-11D \u2014 original manufacturer product photograph\" loading=\"lazy\" src=\"https:\/\/onpowbutton.com\/wp-content\/uploads\/2026\/11\/push-button-material-permittivity-body2-daily20261108.jpg\"\/><figcaption>ONPOW HBY5-11D. Product identification example only; this photograph does not establish soldering, biological, chemical, dielectric, thermal or moisture performance or certification. Confirm the exact ordered configuration and tested equipment scope separately.<\/figcaption><\/figure>\n<h2 id=\"section-6\">Understand what the evidence cannot replace<\/h2>\n<p>A material dielectric-response measurement does not establish the assembled switch&#8217;s required insulation coordination or withstand test outcome. For that separate question, use the <a href=\"https:\/\/onpowbutton.com\/news\/push-button-dielectric-withstand-report\/\">dielectric withstand report guide<\/a>. The sample arrangement and electrical stress are part of the result, so a material number cannot be promoted into an assembly rating.<\/p>\n<p>The <a href=\"https:\/\/onpowbutton.com\/news\/push-button-insulation-resistance-test-review\/\">insulation-resistance test review<\/a> addresses another distinct measurement. High insulation resistance does not supply missing AC permittivity and loss data, and the latter do not authorize an unspecified resistance test on an illuminated control. Use the exact applicable instructions for each investigation.<\/p>\n<p>Similarly, the <a href=\"https:\/\/onpowbutton.com\/news\/push-button-cti-pti-material-report\/\">CTI and PTI material report guide<\/a> concerns tracking evidence. Keep a requirement-to-report matrix if the project needs several electrical material properties. One umbrella label such as \u201celectrically safe plastic\u201d obscures which questions have actually been answered.<\/p>\n<h2 id=\"section-7\">Evaluate supplier differences with a worked review<\/h2>\n<p>Imagine a hypothetical buyer comparing two materials for an insulating component. Supplier A supplies a typical catalogue permittivity value at one frequency. Supplier B supplies a laboratory report at another frequency after a different conditioning process. A lower numerical result from either supplier does not, by itself, establish the better material for the design.<\/p>\n<p>First identify the engineering requirement and its operating assumptions. Then align the method, frequency, material identity and condition. Ask whether the design needs a maximum, minimum, range or simply declared characterization data. Acceptance criteria should come from the actual application, not from whichever quotation happens to have the smallest number.<\/p>\n<p>If the project only needs evidence for ordinary control-switch selection, the engineer may determine that other specified assembly properties are the relevant release criteria. Record that decision. Collecting a specialist material number with no design purpose can consume effort while leaving an important product requirement unverified.<\/p>\n<h2 id=\"section-8\">Review uncertainty and borderline comparisons<\/h2>\n<p>Where a laboratory reports uncertainty, preserve it with the result. If two values are close, the reviewer should consider measurement quality and test comparability before declaring a meaningful difference. Ask the laboratory to clarify the reported uncertainty and result convention rather than inventing a tolerance from the number of decimal places.<\/p>\n<p>Keep typical supplier data separate from guaranteed limits and lot-specific measurements. These forms of evidence can all be useful, but they support different decisions. The purchasing record should say which one was supplied and which one the customer actually required.<\/p>\n<h2 id=\"section-9\">Prepare the material evidence enquiry<\/h2>\n<p>Send the switch order code, component of interest, required property, method edition, frequencies, temperature and conditioning requirements. Explain whether the request is for design characterization, customer documentation or an acceptance limit. Ask for the material identification, original results and a statement connecting the specimen to the production component.<\/p>\n<p>Retain the accepted report with the drawing revision and change-control record. When the component material or formulation changes, have the supplier identify whether the existing evidence remains applicable. A product photograph can help identify the component, but the material traceability must come from controlled documentation.<\/p>\n<p>Before closing a material enquiry, check that every attachment uses the same controlled identification. A quotation may name a switch family, a drawing may name a component, and a report may name a resin supplier grade. Ask for the written connection among these identifiers. Without that connection, a precise laboratory value can remain irrelevant to the actual purchased part.<\/p>\n<h2 id=\"section-10\">Frequently asked questions<\/h2>\n<h3>Is relative permittivity a complete switch voltage rating?<\/h3>\n<p>No. It is a material dielectric-response quantity under stated measurement conditions. The configured switch requires its own applicable ratings and supporting assembly evidence.<\/p>\n<h3>Can data taken at different frequencies be compared directly?<\/h3>\n<p>Keep the difference visible and request an engineering review or comparable measurements. Do not rank materials using isolated numbers with incompatible conditions.<\/p>\n<h3>Does a photograph establish the insulating material grade?<\/h3>\n<p>No. Obtain controlled material identification and evidence linking the measured specimen to the relevant production component. Visible shape and colour do not establish formulation.<\/p>\n<h3>What should be done with an older IEC 60250 report?<\/h3>\n<p>Preserve its actual reference and compare it with the required method and edition. Request an applicability review rather than renaming the test or assuming it automatically meets the current project requirement.<\/p>\n<h2 id=\"learning-video\">Further learning<\/h2>\n<p>Khan Academy explains the effect of a dielectric on capacitance. It provides background for material permittivity, not a test result for an ONPOW switch.<\/p>\n<div class=\"onpow-video\"><iframe src=\"https:\/\/www.youtube-nocookie.com\/embed\/tKZrqrQ3Yec\" title=\"Capacitor with partially filled dielectric | Electrostatic potential &amp; capacitance | Khan Academy\" loading=\"lazy\" allow=\"encrypted-media; picture-in-picture\" allowfullscreen><\/iframe><\/div>\n<p><a rel=\"noopener\" href=\"https:\/\/www.youtube.com\/watch?v=tKZrqrQ3Yec\" target=\"_blank\">Capacitor with partially filled dielectric | Electrostatic potential &amp; capacitance | Khan Academy \u2014 Khan Academy India &#8211; English<\/a><\/p>\n<\/article>\n<p><script type=\"application\/ld+json\">{\"@context\": \"https:\/\/schema.org\", \"@type\": \"FAQPage\", \"mainEntity\": [{\"@type\": \"Question\", \"name\": \"Is relative permittivity a complete switch voltage rating?\", \"acceptedAnswer\": {\"@type\": \"Answer\", \"text\": \"No. It is a material dielectric-response quantity under stated measurement conditions. 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Check frequency, conditioning, specimen identity and the limits of supplier reports.","_links":{"self":[{"href":"https:\/\/onpowbutton.com\/ru\/wp-json\/wp\/v2\/posts\/4518","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/onpowbutton.com\/ru\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/onpowbutton.com\/ru\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/onpowbutton.com\/ru\/wp-json\/wp\/v2\/users\/6"}],"replies":[{"embeddable":true,"href":"https:\/\/onpowbutton.com\/ru\/wp-json\/wp\/v2\/comments?post=4518"}],"version-history":[{"count":2,"href":"https:\/\/onpowbutton.com\/ru\/wp-json\/wp\/v2\/posts\/4518\/revisions"}],"predecessor-version":[{"id":4533,"href":"https:\/\/onpowbutton.com\/ru\/wp-json\/wp\/v2\/posts\/4518\/revisions\/4533"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/onpowbutton.com\/ru\/wp-json\/wp\/v2\/media\/4515"}],"wp:attachment":[{"href":"https:\/\/onpowbutton.com\/ru\/wp-json\/wp\/v2\/media?parent=4518"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/onpowbutton.com\/ru\/wp-json\/wp\/v2\/categories?post=4518"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/onpowbutton.com\/ru\/wp-json\/wp\/v2\/tags?post=4518"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}