Our longtime friend Dave Scopelliti has prepared a succinct paper where he shares his insights on the issue of Galvanic (Electrolytic) Corrosion and interconnects. Dave has a wealth of test, application, industry, and processing knowledge, and is well-respected and well-known in the industry. That’s a polite way of saying he knows a lot and has been around for a long time. Think Moses in a lab coat. If you’ve ever seen Dave you understand what I’m talking about …
Anyway, the goal of Dave’s paper is to inform on the subject of galvanic corrosion, based on his years of laboratory observations and real-life electronics applications. Dave covers a lot of ground in this paper, including: What is galvanic corrosion? This includes a definition of a galvanic cell, he discusses typical formation scenarios, and he shares an example or two about the risks of galvanic corrosion.
Next is a review of general susceptibility rules, and application susceptibility classifications (maximum delta AI voltage). In other words, if you are considering mating dissimilar metals, Dave provides guidelines to assess the system susceptibility to galvanic corrosion for various applications. And for good measure, Dave discusses anti-seize compounds and system testing.
Here’s a link to the paper. Hopefully it will be worthwhile. Other links that may be of interest include:
- Dissimilar Metals And The Risk Of Galvanic Corrosion in Mating Connectors
- Interconnect Test Report Frequently Asked Questions
- Advice On Selecting and Processing Connectors
- Guidelines To Ensure Electromagnetic Immunity In Connectors
- Guidelines For Paste-In-Hole Reflow Processing
- The Facts Of (Extended) Life
- Best Practices For Connector Models
- FAQ Interconnect Test Reports
- Interconnect Processing Handbook
- Interconnect Processing Page
- FAQ About Interconnect Processing
- Effects of Lubrication On Connector Processing
- Calculating Mating and Un-Mating Forces For Samtec Connectors
- Selecting The Right Contact For Your Board-to-Board Interconnect System
- New High Speed Connector Rating That Accounts For The Entire System