We are independent & ad-supported. We may earn a commission for purchases made through our links.

Advertiser Disclosure

Our website is an independent, advertising-supported platform. We provide our content free of charge to our readers, and to keep it that way, we rely on revenue generated through advertisements and affiliate partnerships. This means that when you click on certain links on our site and make a purchase, we may earn a commission. Learn more.

How We Make Money

We sustain our operations through affiliate commissions and advertising. If you click on an affiliate link and make a purchase, we may receive a commission from the merchant at no additional cost to you. We also display advertisements on our website, which help generate revenue to support our work and keep our content free for readers. Our editorial team operates independently from our advertising and affiliate partnerships to ensure that our content remains unbiased and focused on providing you with the best information and recommendations based on thorough research and honest evaluations. To remain transparent, we’ve provided a list of our current affiliate partners here.

What Is a Surface Mount Inductor?

Andrew Kirmayer
By
Updated Feb 22, 2024
Our promise to you
WiseGeek is dedicated to creating trustworthy, high-quality content that always prioritizes transparency, integrity, and inclusivity above all else. Our ensure that our content creation and review process includes rigorous fact-checking, evidence-based, and continual updates to ensure accuracy and reliability.

Our Promise to you

Founded in 2002, our company has been a trusted resource for readers seeking informative and engaging content. Our dedication to quality remains unwavering—and will never change. We follow a strict editorial policy, ensuring that our content is authored by highly qualified professionals and edited by subject matter experts. This guarantees that everything we publish is objective, accurate, and trustworthy.

Over the years, we've refined our approach to cover a wide range of topics, providing readers with reliable and practical advice to enhance their knowledge and skills. That's why millions of readers turn to us each year. Join us in celebrating the joy of learning, guided by standards you can trust.

Editorial Standards

At WiseGeek, we are committed to creating content that you can trust. Our editorial process is designed to ensure that every piece of content we publish is accurate, reliable, and informative.

Our team of experienced writers and editors follows a strict set of guidelines to ensure the highest quality content. We conduct thorough research, fact-check all information, and rely on credible sources to back up our claims. Our content is reviewed by subject matter experts to ensure accuracy and clarity.

We believe in transparency and maintain editorial independence from our advertisers. Our team does not receive direct compensation from advertisers, allowing us to create unbiased content that prioritizes your interests.

A surface mount inductor can be attached to the surface of a printed circuit board (PCB) by manufacturers using special adhesives, solder pastes, and automated assembly processes. The inductor has flat terminals that are soldered onto the copper elements of the circuit. It is typically wound on bobbins that are also secured to the surface of the board. Inductors with toroidal coils that have a header with surface mount terminals are also available. The classification of a surface mount inductor can be by its power rating, the application it is used in, and how it is built.

Inductors and other PCB parts used to have pins that served to attach them to the board and the copper circuitry. Holes had to be drilled into the circuit, and the pins were then soldered. Surface mounting an inductor is a simpler process and makes circuit board manufacturing much less expensive. The bobbins and headers of a surface mount inductor are made of plastic, glass, or Teflon®, which can be molded or fabricated on site. Wire is wound by looping it under a flat edge to form a flat terminal.

A ferrite core inductor is common, but other materials, such as either laminated or taped wound silicon steel alloys, are sometimes used. Nickel-iron alloys, cobalt alloys, as well as powdered irons and nickels can also make up the core of a surface mount inductor. A ferrite bead inductor is most efficient at suppressing electromagnetic interference (EMI), and is often preferred in applications where circuitry is exposed to strong electromagnetic fields.

Depending on the application, a specific shape or a custom shape can be used. Inductors are commonly found in round and square shapes, along with various others. They also come in various sizes, and variant shapes can be adapted to larger sized inductors, although weight can be a concern because vibration can affect the soldered connections.

Inductors are available in various forms, such as the multilayer chip inductor that alternates ferrite and conductor layers and has no windings. There are also types that have magnetic shields, high shock and pressure resistance, high frequency toleration, or are made of thin film to fit inside devices such as cellular phones. No matter the type, the surface mount inductor can handle high currents in notebook PCs, digital cameras, navigational systems in cars, and other small electronic devices. It is one of the key components that have enabled such small devices to be manufactured.

WiseGeek is dedicated to providing accurate and trustworthy information. We carefully select reputable sources and employ a rigorous fact-checking process to maintain the highest standards. To learn more about our commitment to accuracy, read our editorial process.
Andrew Kirmayer
By Andrew Kirmayer , Former Writer
Andrew Kirmayer, a freelance writer with his own online writing business, creates engaging content across various industries and disciplines. With a degree in Creative Writing, he is skilled at writing compelling articles, blogs, press releases, website content, web copy, and more, all with the goal of making the web a more informative and engaging place for all audiences.

Discussion Comments

Andrew Kirmayer

Andrew Kirmayer

Former Writer

Andrew Kirmayer, a freelance writer with his own online writing business, creates engaging content across various...
Learn more
WiseGeek, in your inbox

Our latest articles, guides, and more, delivered daily.

WiseGeek, in your inbox

Our latest articles, guides, and more, delivered daily.