{"id":17029,"date":"2025-12-12T17:39:37","date_gmt":"2025-12-12T09:39:37","guid":{"rendered":"https:\/\/www.bestpcbs.com\/blog\/?p=17029"},"modified":"2025-12-12T17:58:06","modified_gmt":"2025-12-12T09:58:06","slug":"how-can-some-inductors-be-active-and-others-passive","status":"publish","type":"post","link":"https:\/\/www.bestpcbs.com\/blog\/2025\/12\/how-can-some-inductors-be-active-and-others-passive\/","title":{"rendered":"How Can Some Inductors be Active and Others Passive?"},"content":{"rendered":"<div id=\"ez-toc-container\" class=\"ez-toc-v2_0_82_2 ez-toc-wrap-left 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\">Table of Contents<\/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=\"Toggle Table of Content\"><span class=\"ez-toc-js-icon-con\"><span class=\"\"><span class=\"eztoc-hide\" style=\"display:none;\">Toggle<\/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.bestpcbs.com\/blog\/2025\/12\/how-can-some-inductors-be-active-and-others-passive\/#What_Defines_a_Passive_vs_Active_Component\" >What Defines a Passive vs Active Component?<\/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.bestpcbs.com\/blog\/2025\/12\/how-can-some-inductors-be-active-and-others-passive\/#Are_Inductors_Active_or_Passive\" >Are Inductors Active or Passive?<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-3\" href=\"https:\/\/www.bestpcbs.com\/blog\/2025\/12\/how-can-some-inductors-be-active-and-others-passive\/#Why_Inductors_Are_Classified_as_Passive_Components\" >Why Inductors Are Classified as Passive Components?<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-4\" href=\"https:\/\/www.bestpcbs.com\/blog\/2025\/12\/how-can-some-inductors-be-active-and-others-passive\/#How_Does_an_Inductor_Act_at_T_0_and_T_%E2%88%9E\" >How Does an Inductor Act at T 0+ and T \u221e?<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-5\" href=\"https:\/\/www.bestpcbs.com\/blog\/2025\/12\/how-can-some-inductors-be-active-and-others-passive\/#Why_Some_Inductors_Appear_%E2%80%9CActive%E2%80%9D_in_Switching_Power_Circuits\" >Why Some Inductors Appear \u201cActive\u201d in Switching Power Circuits?<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-6\" href=\"https:\/\/www.bestpcbs.com\/blog\/2025\/12\/how-can-some-inductors-be-active-and-others-passive\/#How_Active_Inductors_Work\" >How Active Inductors Work?<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-7\" href=\"https:\/\/www.bestpcbs.com\/blog\/2025\/12\/how-can-some-inductors-be-active-and-others-passive\/#How_to_Tell_Whether_an_Inductor_Is_Passive_or_%E2%80%9CActive-Like%E2%80%9D\" >How to Tell Whether an Inductor Is Passive or \u201cActive-Like\u201d?<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-8\" href=\"https:\/\/www.bestpcbs.com\/blog\/2025\/12\/how-can-some-inductors-be-active-and-others-passive\/#Why_Use_Active_Inductors_Instead_of_Passive_Ones\" >Why Use Active Inductors Instead of Passive Ones?<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-9\" href=\"https:\/\/www.bestpcbs.com\/blog\/2025\/12\/how-can-some-inductors-be-active-and-others-passive\/#Why_Passive_Inductors_Are_Still_Needed\" >Why Passive Inductors Are Still Needed?<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-10\" href=\"https:\/\/www.bestpcbs.com\/blog\/2025\/12\/how-can-some-inductors-be-active-and-others-passive\/#When_Should_You_Use_a_Passive_Inductor\" >When Should You Use a Passive Inductor?<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-11\" href=\"https:\/\/www.bestpcbs.com\/blog\/2025\/12\/how-can-some-inductors-be-active-and-others-passive\/#When_Should_You_Use_an_Active_Inductor\" >When Should You Use an Active Inductor?<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-12\" href=\"https:\/\/www.bestpcbs.com\/blog\/2025\/12\/how-can-some-inductors-be-active-and-others-passive\/#Conclusion\" >Conclusion<\/a><\/li><\/ul><\/nav><\/div>\n<div class=\"yzp-no-index\"><\/div>\n<p><a href=\"https:\/\/www.bestpcbs.com\/blog\/2025\/12\/how-can-some-inductors-be-active-and-others-passive\/\" title=\"\">How Can Some Inductors be Active and Others Passive?<\/a> An inductor is traditionally viewed as a passive part that stores energy in a magnetic field. Yet engineers often encounter the term <strong>\u201cactive inductor\u201d<\/strong> in RF design, analog circuits, and integrated systems. This raises a natural question: how can an inductor be both passive and active?<\/p>\n\n\n\n<p>The answer lies in understanding the physical nature of real inductors and how active circuits replicate inductive behavior using transistors. Both serve important roles, but for very different reasons.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"What_Defines_a_Passive_vs_Active_Component\"><\/span>What Defines a Passive vs Active Component?<span class=\"ez-toc-section-end\"><\/span><\/h2>\n\n\n\n<figure class=\"wp-block-image size-full is-resized\"><a href=\"https:\/\/www.bestpcbs.com\/blog\/wp-content\/uploads\/2025\/12\/What-Defines-a-Passive-vs-Active-Component-1.png\"><img decoding=\"async\" src=\"https:\/\/www.bestpcbs.com\/blog\/wp-content\/uploads\/2025\/12\/What-Defines-a-Passive-vs-Active-Component-1.png\" alt=\"What Defines a Passive vs Active Component?\" class=\"wp-image-17145\" style=\"width:742px;height:auto\"\/><\/a><\/figure>\n\n\n\n<p>A <a href=\"https:\/\/www.bestpcbs.com\/blog\/2025\/12\/how-can-some-inductors-be-active-and-others-passive\/\" title=\"\">passive component<\/a> <strong>does not generate or amplify energy<\/strong>. It reacts directly to the applied electrical stimulus and cannot increase a signal\u2019s power. Examples include resistors, capacitors, and classical inductors. They contribute predictable impedance but do not require an external power rail.<\/p>\n\n\n\n<p>Active components, such as transistors, op-amps, and ICs, <strong>control current flow<\/strong> and may provide amplification or buffering. They need supply voltage and can introduce gain, shaping the signal beyond what passive parts can offer.<\/p>\n\n\n\n<p>Understanding this boundary clarifies the discussion: a real inductor made from a coil is always passive. A circuit that imitates an inductor using active devices can appear inductive, but it is not passive. If you want to know more about active vs passive components, you can read our another post: <strong><a href=\"https:\/\/www.bestpcbs.com\/blog\/2024\/07\/what-are-the-differences-between-active-and-passive-components\/\">Key differences between active and passive components<\/a><\/strong><\/p>\n\n\n\n<h2 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"Are_Inductors_Active_or_Passive\"><\/span>Are Inductors Active or Passive?<span class=\"ez-toc-section-end\"><\/span><\/h2>\n\n\n\n<p><strong>Inductors are passive components. <\/strong>A real inductor does not need an external power supply and cannot amplify signals\u2014it simply stores energy in a magnetic field when current passes through it. Because it neither generates nor controls power using another energy source, it is classified as a passive device in electronics.<\/p>\n\n\n\n<p>However, in modern RF and integrated circuit design, you may encounter the term active inductor, which can cause confusion. These are not physical coils but transistor-based circuits that imitate the behavior of an inductor. Since they require external power and use active devices like MOSFETs or BJTs to create inductive reactance, they are considered \u201cactive.\u201d So while true inductors are always passive, engineers sometimes build circuits that behave like inductors using active components.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"Why_Inductors_Are_Classified_as_Passive_Components\"><\/span>Why Inductors Are Classified as Passive Components?<span class=\"ez-toc-section-end\"><\/span><\/h2>\n\n\n\n<p>The behavior of a physical inductor is rooted in fundamental electromagnetic principles. When current flows through a coil, a magnetic field forms. As the current changes, the magnetic field changes, resisting that shift. This energy exchange happens without any external power source.<\/p>\n\n\n\n<p>A real inductor is therefore passive because:<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>It can store energy but does not create energy.<\/li>\n\n\n\n<li>It influences current change without external power.<\/li>\n\n\n\n<li>It cannot add gain to any signal path.<\/li>\n\n\n\n<li>It operates based solely on electromagnetic induction.<\/li>\n<\/ul>\n\n\n\n<p>Even in complex designs such as buck converters or class-D amplifiers, the inductor simply <strong>reacts<\/strong> to switch transitions and waveform shapes created by active devices. All \u201cdynamic\u201d behavior is still passive in nature.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"How_Does_an_Inductor_Act_at_T_0_and_T_%E2%88%9E\"><\/span>How Does an Inductor Act at T 0+ and T \u221e?<span class=\"ez-toc-section-end\"><\/span><\/h2>\n\n\n\n<p>At <strong>T = 0\u207a<\/strong>, an inductor behaves like a <strong>short-term open circuit<\/strong> because it resists any sudden change in current. The moment a voltage is applied, the current through the inductor starts at zero and increases gradually, so the inductor initially blocks current flow as if it were an open switch.<\/p>\n\n\n\n<p>At <strong>T = \u221e<\/strong>, an inductor behaves like a <strong>short circuit<\/strong> because once the current reaches a steady state, the inductor no longer opposes it. The stored magnetic field becomes constant, the inductor\u2019s voltage drops to zero, and it effectively acts as a piece of wire with minimal resistance.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"Why_Some_Inductors_Appear_%E2%80%9CActive%E2%80%9D_in_Switching_Power_Circuits\"><\/span>Why Some Inductors Appear \u201cActive\u201d in Switching Power Circuits?<span class=\"ez-toc-section-end\"><\/span><\/h2>\n\n\n\n<figure class=\"wp-block-image size-full\"><a href=\"https:\/\/www.bestpcbs.com\/blog\/wp-content\/uploads\/2025\/12\/Why-Some-Inductors-Appear-Active-in-Switching-Power-Circuits.png\"><img decoding=\"async\" src=\"https:\/\/www.bestpcbs.com\/blog\/wp-content\/uploads\/2025\/12\/Why-Some-Inductors-Appear-Active-in-Switching-Power-Circuits.png\" alt=\"Why Some Inductors Appear \u201cActive\u201d in Switching Power Circuits?\" class=\"wp-image-17151\"\/><\/a><\/figure>\n\n\n\n<p>In switching circuits, an inductor often behaves in a way that looks purposeful and controlled\u2014almost like an active element. For example:<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>In a <strong>buck converter<\/strong>, the inductor ramps current up and down in sync with the MOSFET switching.<\/li>\n\n\n\n<li>In a <strong>boost converter<\/strong>, the inductor releases stored energy to lift the voltage.<\/li>\n\n\n\n<li>In a <strong>flyback design<\/strong>, the inductor (transformer primary) delivers energy during off-time.<\/li>\n<\/ul>\n\n\n\n<p>This controlled energy delivery can seem active. But the inductor remains passive because:<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>It performs no amplification.<\/li>\n\n\n\n<li>It has no supply pins.<\/li>\n\n\n\n<li>All action results from controlled switching around it.<\/li>\n<\/ul>\n\n\n\n<p>The inductor is only following physics. Its \u201cactive-looking\u201d behavior is driven by the switching controller, not the inductor itself.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"How_Active_Inductors_Work\"><\/span>How Active Inductors Work?<span class=\"ez-toc-section-end\"><\/span><\/h2>\n\n\n\n<p>Active inductors exist because integrated circuits cannot easily include large, high-quality coils. Instead, designers use <strong>transistors and feedback networks<\/strong> to replicate inductive reactance.<\/p>\n\n\n\n<p>Common active inductor approaches:<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li><strong>Gyrator circuits:<\/strong> Create an inductive response using a capacitor and an active device.<\/li>\n\n\n\n<li><strong>MOSFET-based inductors:<\/strong> Leverage transconductance to shape current like a coil would.<\/li>\n\n\n\n<li><strong>Gm-C active filters:<\/strong> Combine tunable transconductance with capacitors for high-frequency inductive behavior.<\/li>\n<\/ul>\n\n\n\n<p>Active inductors rely on:<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>Bias current<\/li>\n\n\n\n<li>Voltage gain<\/li>\n\n\n\n<li>Feedback loops<\/li>\n<\/ul>\n\n\n\n<p>These elements allow the circuit to emulate inductance over a chosen frequency range. They do not store energy magnetically; instead, they reproduce the <strong>impedance profile<\/strong> of an inductor electrically.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"How_to_Tell_Whether_an_Inductor_Is_Passive_or_%E2%80%9CActive-Like%E2%80%9D\"><\/span>How to Tell Whether an Inductor Is Passive or \u201cActive-Like\u201d?<span class=\"ez-toc-section-end\"><\/span><\/h2>\n\n\n\n<p>The simplest way is to examine its structure or schematic.<\/p>\n\n\n\n<p><strong>A passive inductor:<\/strong><\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>Contains a coil of copper wire.<\/li>\n\n\n\n<li>May use ferrite, iron, or air as the core.<\/li>\n\n\n\n<li>Has no power supply pins.<\/li>\n\n\n\n<li>Always presents inductive reactance at AC.<\/li>\n\n\n\n<li>Stores energy in a real magnetic field.<\/li>\n<\/ul>\n\n\n\n<p><strong>An active inductor:<\/strong><\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>Includes MOSFETs, BJTs, resistors, and capacitors.<\/li>\n\n\n\n<li>Requires biasing from VCC or VDD.<\/li>\n\n\n\n<li>Does not behave like an inductor at DC.<\/li>\n\n\n\n<li>Mimics inductance only across a designed range.<\/li>\n\n\n\n<li>Does not produce a true magnetic field.<\/li>\n<\/ul>\n\n\n\n<p>If it physically coils wire, it is passive. If it needs biasing, it is active.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"Why_Use_Active_Inductors_Instead_of_Passive_Ones\"><\/span>Why Use Active Inductors Instead of Passive Ones?<span class=\"ez-toc-section-end\"><\/span><\/h2>\n\n\n\n<p>Engineers select active inductors for reasons tied to integration, size, and flexibility. A real inductor may be too large, too costly, or incompatible with an integrated CMOS flow. Active versions offer:<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li><strong>Very small footprint<\/strong> for RF ICs and SoCs.<\/li>\n\n\n\n<li><strong>Electronically adjustable inductance<\/strong> for tunable filters.<\/li>\n\n\n\n<li><strong>Higher effective inductance<\/strong> than what is possible in a small coil.<\/li>\n\n\n\n<li><strong>Better integration<\/strong> on silicon with no magnetics required.<\/li>\n\n\n\n<li><strong>Lower parasitics<\/strong> compared with some wound inductors.<\/li>\n<\/ul>\n\n\n\n<p>This makes active inductors popular in:<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>RF front-ends<\/li>\n\n\n\n<li>On-chip matching networks<\/li>\n\n\n\n<li>Integrated oscillators<\/li>\n\n\n\n<li>Bluetooth, Wi-Fi, and mmWave circuits<\/li>\n\n\n\n<li>Adaptive analog systems<\/li>\n<\/ul>\n\n\n\n<h2 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"Why_Passive_Inductors_Are_Still_Needed\"><\/span>Why Passive Inductors Are Still Needed?<span class=\"ez-toc-section-end\"><\/span><\/h2>\n\n\n\n<p>Although active inductors are flexible, they cannot replace wound inductors when real magnetic energy storage or high linearity is required. Passive inductors excel in:<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>Energy transfer systems<\/li>\n\n\n\n<li>Power converters<\/li>\n\n\n\n<li>High-current paths<\/li>\n\n\n\n<li>EMI suppression<\/li>\n\n\n\n<li>Resonant circuits with high Q<\/li>\n\n\n\n<li>Audio crossover networks<\/li>\n\n\n\n<li>RF circuits where low noise is important<\/li>\n<\/ul>\n\n\n\n<p>Passive inductors also work over a broad frequency range and do not rely on bias currents. They withstand much higher power levels than active circuits.<\/p>\n\n\n\n<figure class=\"wp-block-image size-full\"><a href=\"https:\/\/www.bestpcbs.com\/blog\/wp-content\/uploads\/2025\/12\/dc3410ad82204115b4516543df90f0fa.png\"><img decoding=\"async\" src=\"https:\/\/www.bestpcbs.com\/blog\/wp-content\/uploads\/2025\/12\/dc3410ad82204115b4516543df90f0fa.png\" alt=\"Why Passive Inductors Are Still Needed?\" class=\"wp-image-17160\"\/><\/a><\/figure>\n\n\n\n<h2 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"When_Should_You_Use_a_Passive_Inductor\"><\/span>When Should You Use a Passive Inductor?<span class=\"ez-toc-section-end\"><\/span><\/h2>\n\n\n\n<p>A <a href=\"https:\/\/www.bestpcbs.com\/blog\/2025\/12\/how-can-some-inductors-be-active-and-others-passive\/\" title=\"\">passive inductor <\/a>is the correct choice when the application needs real, physical energy handling. Use one when the design involves:<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>Power conversion<\/li>\n\n\n\n<li>DC-DC regulation<\/li>\n\n\n\n<li>Motor control circuits<\/li>\n\n\n\n<li>High-current feeding<\/li>\n\n\n\n<li>RF filters needing high Q<\/li>\n\n\n\n<li>Low-noise front-end requirements<\/li>\n<\/ul>\n\n\n\n<p>When reliability, linearity, and energy efficiency matter, a real inductor is essential.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"When_Should_You_Use_an_Active_Inductor\"><\/span>When Should You Use an Active Inductor?<span class=\"ez-toc-section-end\"><\/span><\/h2>\n\n\n\n<p>Active inductors become practical when design priorities shift:<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>The circuit must be fully integrated on a chip.<\/li>\n\n\n\n<li>Board space is extremely limited.<\/li>\n\n\n\n<li>Tunability is required through voltage or current adjustments.<\/li>\n\n\n\n<li>Only small-signal behavior matters, not high power.<\/li>\n\n\n\n<li>The circuit\u2019s operating band is narrow, such as RF.<\/li>\n<\/ul>\n\n\n\n<p>If the goal is impedance shaping, not energy transport, an active inductor offers a compact and configurable solution.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"Conclusion\"><\/span>Conclusion<span class=\"ez-toc-section-end\"><\/span><\/h2>\n\n\n\n<p>A traditional inductor with a wire coil is always passive. It stores energy in a magnetic field and cannot amplify signals. Active inductors, on the other hand, are transistor-based circuits that imitate inductive behavior using gain and feedback. They are \u201cactive\u201d because they need power and introduce controlled impedance rather than storing energy.<\/p>\n\n\n\n<p>Both types play important roles in electronics. Understanding their differences helps engineers select the right component for RF filters, switching regulators, mixed-signal ICs, and miniaturized platforms where performance, size, and frequency all shape design strategy.<\/p>\n","protected":false},"excerpt":{"rendered":"<p>How Can Some Inductors be Active and Others Passive? An inductor is traditionally viewed as a passive part that stores energy in a magnetic field. Yet engineers often encounter the term \u201cactive inductor\u201d in RF design, analog circuits, and integrated systems. This raises a natural question: how can an inductor be both passive and active? [&hellip;]<\/p>\n","protected":false},"author":623,"featured_media":0,"comment_status":"open","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"_acf_changed":false,"_uf_show_specific_survey":0,"_uf_disable_surveys":false,"footnotes":""},"categories":[175,174,37,3],"tags":[3002],"class_list":["post-17029","post","type-post","status-publish","format-standard","hentry","category-best-pcb","category-bestpcb","category-faq","category-pcb-news","tag-how-can-some-inductors-be-active-and-others-passive"],"acf":[],"aioseo_notices":[],"_links":{"self":[{"href":"https:\/\/www.bestpcbs.com\/blog\/wp-json\/wp\/v2\/posts\/17029","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.bestpcbs.com\/blog\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.bestpcbs.com\/blog\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/www.bestpcbs.com\/blog\/wp-json\/wp\/v2\/users\/623"}],"replies":[{"embeddable":true,"href":"https:\/\/www.bestpcbs.com\/blog\/wp-json\/wp\/v2\/comments?post=17029"}],"version-history":[{"count":5,"href":"https:\/\/www.bestpcbs.com\/blog\/wp-json\/wp\/v2\/posts\/17029\/revisions"}],"predecessor-version":[{"id":17163,"href":"https:\/\/www.bestpcbs.com\/blog\/wp-json\/wp\/v2\/posts\/17029\/revisions\/17163"}],"wp:attachment":[{"href":"https:\/\/www.bestpcbs.com\/blog\/wp-json\/wp\/v2\/media?parent=17029"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.bestpcbs.com\/blog\/wp-json\/wp\/v2\/categories?post=17029"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.bestpcbs.com\/blog\/wp-json\/wp\/v2\/tags?post=17029"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}