MPD high-durability contact probes: over 1 million cycles to optimize PCB testing
High-precision motion control with Bogen Magnetics’ miniaturized sensors
Reduce maintenance costs and maximize accuracy with MPD’s new contact probes for ATE systems
In electronics manufacturing and quality control, ensuring reliable printed circuit board (PCB) testing remains an ongoing challenge. Design and production engineers face premature wear of test components on a daily basis. As a result, unnecessary downtime on assembly lines, increased maintenance costs, and false negatives during diagnostics become common issues. In high-volume production environments, conventional mechanical connections often fail prematurely, affecting the performance of automated test equipment (ATE) and compromising signal integrity.
Technical specifications
To address these challenges, Memory Protection Devices Inc. (MPD) has launched a new range of high-performance contact probes. These components are also known as spring-loaded pins or pogo pins. The key technical innovation lies in their exceptional combined materials engineering. Thanks to this, the components achieve over 1 million operating cycles. This figure is ten times higher than the industry standard, which is typically around 100,000 cycles. Specifically, this extreme durability is achieved through a structure based on three specific high-quality materials:
- Plunger: Hardened tool steel with gold plating, ensuring excellent corrosion resistance and optimal conductivity.
- Spring: Piano wire with gold plating, providing consistent mechanical performance and low signal resistance.
- Barrel: Phosphor bronze with gold plating, providing superior structural strength and protection against continuous wear.
Applications and advantages
Thanks to their mechanical and electrical robustness, these probes minimize signal loss and ensure stable contact in high-precision environments. For this reason, they are ideally suited for integration into test fixtures used in high-volume production and in-circuit test (ICT) systems. Likewise, their stability under repeated use makes them suitable for functional testing of assembled PCBs, burn-in thermal stress testing, and critical semiconductor test applications. Ultimately, the adoption of these components provides a direct advantage: by increasing pin lifetime tenfold, machine downtime is significantly reduced. As a result, operational costs related to part replacement decrease, while overall factory efficiency is improved.
RC Microelectrónica, distributor of MPD for Spain and Portugal
Optimizing the accuracy and longevity of your automated test systems is now easier with MPD technology. As official distributors, RC Microelectrónica provides you with all the necessary technical information, sample management, and expert support from our engineering team to help you select the exact component required for your next design.



