Reliability Prediction Procedure for Electronic Equipment
Document Number SR-332
Issue Number 04
Issue Date Mar 2016
Reliability prediction is an important element in the process of designing or selecting equipment. These predictions provide
necessary input to system-level reliability models for predicting expected downtime per year and system availability. Issue 4 of SR-332
provides all the tools needed for predicting device and unit hardware reliability, and contains important revisions since the document
was last issued.
The Telcordia Reliability Prediction Procedure has a long and distinguished history of use within and outside the
telecommunications industry. Issue 4 of SR-332 provides the only hardware reliability prediction procedure developed from the input and
participation of a cross-section of major industrial companies. This lends the procedure and the predictions derived from it a high
level of credibility free from the bias of any individual supplier or service provider.
Issue 4 of SR-332 contains:
Also Available!!! An Updated Version of the Reliability Software Tool that Automates the Reliability Prediction Techniques in
- Recommended methods for predicting device and unit hardware reliability. These techniques estimate the mean failure rate in
FITs for electronic equipment. This procedure also documents a recommended method for predicting serial system hardware
- Tables needed to facilitate the calculation of reliability predictions.
- Revised generic device failure rates in Section 8, based mainly on new data for many components.
- An extended range of complexity for devices, and the addition of new devices.
- Revised environmental factors in Section 9 based on field data and experience.
- Clarification and guidance on items raised by forum participants and by frequently asked questions from users.
Select FD-ARPP-01 for more information on this easy-to-use, comprehensive software tool.
Issue 4 of SR-332, Reliability Prediction Procedure for Electronic Equipment, replaces Issue 3, and is a module of
The following documents were fully or partly replaced by SR-332: TR-332, TR-NWT-000332, TA-000-23620-83-01, and IP-10425.
When using SR-332, you may need to refer to GR-357. You may also want to refer to GR-2969, SR-1171, and