This website provides information about the MIL-HDBK-217 reliability prediction of electronic equipment, and how it relates to reliability and maintainability (RAM) software and analyses.

MIL-HDBK-217 is a reliability prediction standard originally developed for defense and aerospace related organizations, but later adopted by many commercial and industrial companies. Many times referred to simply as 217, MIL-HDBK-217 includes mathematical reliability models for nearly all types of electrical and electronic components. These reliability models are based on parameters of the components such as number of pins, number of transistors, power dissipation, and environmental factors. Results from MIL-HDBK-217 are provided as both a failure rate and as an MTBF (Mean Time Between Failures) where the MTBF is the mathematical inverse of the failure rate.

Relex Software Corporation produces software that enables users to easily perform reliability and maintainability (RAM) analyses using the MIL-HDBK-217 standard. Relex Software is a leader in RAM software analysis tools. We specialize in software, training courses, and seminars covering all aspects of reliability engineering. Our products are used by thousands of engineers worldwide in a variety of businesses.

Please visit the Links page for more online information about the Relex Software visual reliability software modules, and about the MIL-HDBK-217 standard in general.

If you are a Relex user, thank you for your support. If you are evaluating our software for future use, we hope to welcome you soon to RELiability EXcellence with Relex.

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