Spring contact pins from FIXTEST – precision that connect
FIXTEST offers high-quality spring contact pins for precise and reliable contacting in testing and manufacturing technology. Each spring contact pin is manufactured in Germany under strict quality standards, combining precision with robust durability for dependable results.
Thoughtful geometries, defined spring forces, and a wide range of variants allow optimal adaptation to the component and process – from fine-pitch applications to high-current loads .
As a result, our spring contact pin solutions ensure consistent measurement results and high process stability.
What is a spring contact pin?
A spring contact pin is a connector element used for the electrical contacting of test and measurement points. When applied, the pin automatically generates a defined, constant contact pressure and maintains it consistently over the entire contact stroke.
This ensures low contact resistance and reproducible measurement results – even when test points show slight height variations, partially oxidized surfaces, or micro-movements during the test process.
Our spring contact pins thus enable reliable contacting and reduce rework efforts by minimizing contact failures.
Why spring contact pins are indispensable in modern test systems
- Constant contact resistance for reproducible measurement results
- Compensation of manufacturing tolerances and PCB warpage
- Gentle contacting of sensitive pads while reliably penetrating oxide layers
- Wide range of variants from fine-pitch to high-current applications
Mechanical structure of a spring contact pin
A spring contact pin consists of three main components that are precisely matched to each other:
• Plunger/Tip: Transfers the contact force to the test item. Depending on the application, customized tip geometries (e.g., flat, conical, crown) are selected to ensure reliable contacting and consistently low contact resistance.
• Spring: Ensures a defined contact pressure across the entire working range. The spring characteristic determines how the contact force builds up and remains stable over the stroke. This is essential for reproducible measurement results.
• Barrel: Guides the plunger with minimal play, protects the spring, and defines the mechanical working stroke. Precise tolerances ensure accurate axial alignment and minimize wear.
Variants for different requirements
For various testing tasks, spring contact pins are available in several basic types. The following variants cover most application scenarios and primarily differ in terms of electrical load capacity, signal integrity, and mechanical robustness:
- Standard spring contact pins:
The universal spring contact pin for ICT, FCT, and end-of-line test systems. It offers a well-balanced combination of defined contact force, reliable tolerance compensation, and cost-efficient durability. Suitable for the majority of PCB and assembly tests with typical currents and contact pitches.
- High-current spring contact pins:
For applications with increased continuous or peak currents. This spring contact pin is designed for low contact resistance and high thermal stability to minimize heating and maximize service life. Typical application areas include battery contacting , power electronics, and busbar connections.
- High-frequency (RF) spring contact pins:
For signals with high data rates or RF requirements. The geometry and conductor design are optimized for low reflections and minimal attenuation, ensuring consistent impedance and signal integrity. Ideal for high-speed interfaces, wireless applications, and RF test environments.
Which type is right for you depends, among other factors, on current-carrying capacity, signal bandwidth, and mechanical conditions. We will be happy to advise you on which spring contact pin best meets your requirements.
Typical application fields
Our spring contact pins are used in industries where process reliability and reproducible measurement values are essential. In medical technology , we support you in ensuring safe contacting of sensitive electronics – for example, in monitoring systems, diagnostic devices, or wearables. The spring contact pin ensures low contact resistance while protecting gold-plated pads. In addition, it enables reliable functional testing even at high clock rates.
In the automotive sector, spring contact pins are used in ICT, FCT, and end-of-line test systems. In these applications, stable contacts are required that can withstand vibrations, tolerances, and temperature fluctuations.
For cell and module testing, we provide solutions that safely handle high currents while enabling precise measurements.
In industrial electronics and mechanical engineering, our solutions ensure reliable electrical testing of PLC and I/O assemblies, converters, sensor/actuator modules, and industrial PCs. The spring contact pin enables dependable contacting even with fine-pitch layouts and high contact point densities.
We also support validation of high-speed interfaces and connectors in communication and consumer electronics, where signal integrity is a top priority.
Quality features of spring contact pins at FIXTEST
FIXTEST stands for the highest standards of quality, precision, and reliability. Our spring contact pins are 100% made in Germany and are based on many years of industry experience combined with a deep understanding of the requirements of modern testing processes.
As a manufacturer with in-house development and production in Germany, as well as a European supply chain, we control every stage of the manufacturing process internally. This ensures that each spring contact pin is precisely tailored to its intended application.
Our processes are ISO-certified, regularly audited, and subject to strict quality controls to guarantee consistently high contact quality and long service life. We place particular emphasis on the use of high-grade materials and precisely manufactured components.
Contact surfaces are refined with highly conductive coatings to ensure consistently low contact resistance even under demanding conditions. Every spring contact pin undergoes extensive testing at FIXTEST before entering series production.
Another hallmark of our quality philosophy is our comprehensive spring contact recycling concept , which reduces material consumption and enables the recovery of valuable raw materials.
Contact us now
Are you looking for reliable spring contact probes for your testing or manufacturing application? FIXTEST can help you select the right solution. Customized solutions tailored to your technical requirements. Whether standard, high-current, or fine-pitch : We provide personalized, expert advice.