Electronics Springs & Components
Century Spring offers decades of experience designing and manufacturing springs and wire-form products for an impressive range of consumer and industrial electronics applications.
We understand that quality and engineering excellence are indispensable prerequisites when designing springs for electronic components. Springs can be found in dozens of consumer components that perform their function unnoticed, ensuring that electronics operate reliably. Electronic spring applications also include industrial electronic safety systems.
Our dedicated custom spring development and customer support teams know the needs of electronics hardware OEMs. They will help you navigate design criteria such as spring size, materials, surface finishes, and end types to find your application's optimal spring solution.
Furthermore, our vast inventory of in-stock springs and standard parts is available for same-day shipping to deliver your needed parts as quickly as possible. Whether you need a simple spring for a button relay or battery relay or a high-performance electrically conductive spring for critical safety functions, you can discover how our expansive spring inventory and custom spring design expertise can best serve you today!

Custom Precision Electronics Springs
Century Spring is proud to supply custom high-quality springs for consumer and industrial electronics that meet the most rigorous electrical industry standards, from raw material procurement to final surface finishing.
Our custom springs operate reliably in applications from battery contacts and switches to semiconductor manufacturing equipment. Our customers in the electronics industry rely on our precision small and micro spring products to perform reliably in safety-critical electronics.
We bring decades of design and manufacturing expertise to your custom spring projects, providing thousands of custom spring options to fit the most demanding electronics components. We are fully committed to on-time delivery of quality custom products.
You can browse our selection of stock springs typically used for electronics applications and filter by material and size to understand the customization options available for custom development projects.
Electronics at a Glance
YEARS SERVING INDUSTRY
40+
COMPLIANCE
ISO 9001
ITAR Compliant
DFARS
MIL-I-45208A
MIL-STD-45662
RoHS
Spotlight on Innovation: Our Electronics Spring Applications
Springs are employed in countless electronics applications, such as button and switch relay equipment and battery contacts. Below are more specific examples of specialized and high-performance electronics applications.
Micro Springs for Circuit Boards
Micro springs are increasingly being used as electrical connectors for printed circuit boards where soldering the boards together is not desirable because extreme heat fluctuations render the soldered connection brittle and vulnerable to failure. When these connections break, the entire circuit board goes down, and it can be difficult or impossible to figure out where the connection has broken. NASA engineers were the first to pioneer the use of springs for this purpose, specifically in electronics used in aerospace applications.
Battery Contact Springs
One of the most recognizable uses of springs in electronics is the battery contacts in every single-use battery device. Tapered springs are the primary electrical contact between the battery's two ends and hold them in place. Tapered springs are used for such battery contacts because their wide base creates a stable, secure connection, allowing for reliable, uninterrupted operation for the battery's life.
Spring Loaded Connectors
A spring-loaded connector (pogo pin) is a specialized mechanical device commonly used in electronic applications and designed to maintain electrical contact between terminals using a compression spring mechanism. Spring-loaded connectors are found in consumer laptops and mobile phone charging connections and are increasingly designed into rechargeable lithium-ion battery connections.
Semiconductor Equipment Springs
One of the most interesting uses of springs in electronic applications is the canted coil spring found in industrial Semiconductor manufacturing equipment. Semiconductor springs provide electrical conduction and electromagnetic shielding under constant contact pressure. In short, these properties allow the equipment to reliably operate with high precision.
What We Offer
Reliable Manufacturing Services
Our Manufacturing Services include prototyping and tooling assistance. We also have cutting-edge computational equipment simulation and testing techniques, such as CNC compression self-monitoring and coiling machinery. These capabilities enable us to deliver durable, reliable products across many custom sizes and styles.
We boast a fully certified ISO 9001 quality management system and bring extensive design for manufacturability (DFM) expertise to your project. We have dedicated, high-speed machines that can quickly scale high-quality spring production processes to large part volumes.
Our team will work directly with you to create and optimize spring design for specific tolerance, performance, and use case conditions. We are ready to partner to solve your most pressing design challenges.
Our electronics industry products include precision-grade small and micro springs and wire forms in many materials and specifications. Our expert engineering and manufacturing teams use precision technology to support the production of tight tolerances and micro components for intricate part needs.
Quality Materials
The most common spring materials in electronic spring applications are typically custom options.
Stainless steel is sometimes used as electronic spring material because it is corrosion-resistant and durable. Steel springs may be feasible and appropriate as an economical option depending on the specific electronics application.
However, copper alloys are the most common materials used for electronics applications, specifically those applications such as battery contacts, switches, and relays. Copper springs are used in many electrical applications, such as battery contacts, switches, and relays. To that end, Beryllium Copper is also a popular copper alloy choice because it offers great corrosion resistance, excellent electrical conductivity, and high strength. Because of this, it is a great choice for electrical contact springs. Brass and Phosphor Bronze springs are also excellent electronics applications because they are highly corrosion and wear-resistant.
We have an extensive inventory of raw materials in stock to accelerate the development of custom electronic spring solutions. We also have 40 metallic coatings and finishes, including various types of chromate, chrome, nickel, tin, copper, black oxide, zinc, and more.
Why Choose Century Spring
Our Commitment to Quality and Service

Century Spring is a quality-first, ISO 9001 and AS9100D certified, industry-leading spring supplier specializing in stock and custom springs. We are the most trusted name in spring manufacturing, offering products and expertise to serve every corner of the electronics market.
Our dedicated custom spring development and customer support teams help you navigate critical design criteria such as size, material, surface finish, and end type to find your application's optimal spring solution.
Our experienced product engineers, knowledgeable product quality team, and skilled manufacturing personnel always deliver the highest quality products to you faster than our domestic and international competitors. Our springs are always made in the USA.
We offer rapid delivery on over 40,000+ in-stock designs available to ship today. We are committed to getting products to you as quickly as possible because we understand your design scheduling constraints.
Visit us today to discover how our commitment to quality and customer satisfaction vastly improves your product design process!
What Our Customers Are Saying
“Terrific customer service agents who are willing to research and find the answer if they don't know. Nice email updates and quick product delivery.”
“I am surprised that a big company like yours would work with us little guys. And Thank You because we don't have another source for springs.”
“The website works really well, that is very important to me to find what I need quickly and accurately.”
Get In Touch
Contact Information
Contact Us directly today, and let our experts resolve all your technical and sales questions. We can also guide you through all our available secondary operations for each spring type and material.
If you need immediate assistance, you can always reach us at our dedicated phone line to speak directly with our team: 800-237-5225.
Request a Quote
We can also help you evaluate custom secondary operations and determine whether a custom spring design better suits your application.
Simply Request a Custom Quotation so we can partner with you to customize a spring design for your unique application.
Once we hear from you, our design team will follow up with a quote for a custom solution and be happy to answer any follow-up questions you may have.
FAQs About Electronics Springs
What types of springs are most common in electronic applications?
Electronics applications commonly utilize helical coil compression springs such as tapered or barreled springs. However, torsion springs are also used as electrical contacts in switches and relay components. Some specialized electronic hardware equipment uses exotic springs such as canted coil springs.
Do I need a custom design?
Standard springs are readily available in various sizes and specifications. However, most small springs in copper alloys such as Brass or Beryllium Copper are custom options. If you determine that you need a custom-designed spring that we do not carry in stock, call us today at 800-237-5225 or fill out our Custom Quotation Form today!
What material should I choose?
In short, consider your application's size, corrosion resistance, and electrical conductivity requirements. For example, consider a beryllium copper spring if your application requires corrosion resistance and electrical conductivity.
What tolerances should I expect my small or micro electronic spring to have?
Spring tolerances depend heavily on the exact spring type and geometry. As such, we have performed extensive empirical studies, which we have used to develop tolerance equations for different manufacturing techniques. We have combined these with the best industry standards to create general tolerance ranges for springs commonly employed in the Aerospace and Defense industries. However, these calculations can be very involved, so we have integrated them into our design and manufacturing automation software.
However, if you contact our design team today, we will gladly walk you through these calculations to provide general tolerance values for your spring type and geometry!