The FMEDA technique, developed in the 1980’s by engineers now working at exida, is commonly used to predict the safety & reliability performance (e.g., failure rates) of safety-critical devices as required by the IEC-61508 family of performance-based standards. FMEDA results, however, are only as good as the reliability database that is used to predict them. The exida CRD addresses the many shortcomings of existing component reliability handbooks and databases enabling you to achieve a new level of accuracy in your FMEDA predictions.
You do… That is if you want the most accurate intelligence available to help you make the best possible decisions when bringing a new safety-critical device to market. An analysis conducted by the International Electronics Reliability Institute showed that predicted component and product failure rates could vary by up to 10X based on which reliability data source was used. Try performing design tradeoffs (cost, reliability, weight, size) with this kind of data uncertainty. It is challenging to evaluate whether marketing requirements have been met or plan logistic and life-cycle support strategies with inaccurate data. It also can lead to inaccurate reliability predictions by the users of your product. In the worst case it can lead to missing of important failure modes which could result in product recalls or safety issues (including loss of life).
Component reliability databases are used in many industries to perform reliability and availability analysis, design optimization, lifecycle cost predictions, and safety analysis. As systems grow more complex, this analysis becomes more important.
The exida CRD™ Handbook / Database provides the engineering community with the most comprehensive database available of relevant electronic, mechanical, and sensor component failure data.
CRD Parts List – Download the CRD Parts List and let us know if you can identify any components from your designs that are missing!
Add a Component to the CRD - FMEDAx™ subscribers can request a part to be added to the CRD. Send us information on the component/manufacturer and, in as little as two weeks, we will send you a file with the component’s failure rate data. The data file can be added to your current CRD database in a matter of seconds; no need to update software. This means no need to search the internet for missing parts or to make reliability assumptions on critical components that could make the difference between commercial success and failure.
The CRD provides all the data you need to perform a Failure Modes, Effects, and Diagnostic Analysis (FMEDA) using FMEDAx. It documents failure rate as a function of how the component is used (operating modes) and its operating environment (particularly temperature). It also provides data on likely failure modes, the distribution of those failure modes, and useful life. This rich set of failure data helps you create the most accurate FMEDA predictions possible.
CRD Component Data Sheets - Check out some sample Component Data Sheets from the CRD Handbook. Let us know if they don’t exceed the contents of your current reliability handbook!
Engineers from exida developed the FMEDA technique in the 1990’s as a way to contribute to the advance of safety and reliability engineering (actually to quantify the impact of diagnostics on safety and availability). We want to see it applied correctly and successfully. We think this can best be done by pushing to increase the transparency, consistency, and accuracy of product failure rate prediction throughout the industry.
400 billion operating hours of field failure data have been analyzed by exida to calibrate its component reliability data in order to deliver the most accurate and realistic database for use in the development of IEC 61508-compliant products