Note: Bellcore (Bell Communications Research, a spin-off of AT&T Bell Labs) was the research arm of the Bell Operating Companies. The purchase agreement required Bellcore to change its name: Bellcore became Telcordia Technologies in 1999.Įricsson acquired Telcordia in 2012. Bellcore previously used MIL-HDBK-217 for their reliability predictions, but found that 217 gave pessimistic numbers for its commercial quality products.

A few years ago (1985), Bellcore used 217 as a starting point, modified (and simplified) the models to better reflect their field experience, and developed the Bellcore reliability prediction procedure, which is applicable to commercial electronic products. Telcordia has continued the development of the reliability prediction procedure.

Most commercial electronic product companies are now choosing to use the Telcordia SR-332 handbook for their reliability predictions. RelCalc V5.1-TELC3 implements the models of this Telcordia document: 'Reliability Prediction Procedure for Electronic Equipment' Document Number SR-332, Issue 3 You can order this document directly from Telcordia: Telcordia Customer Service Center (Piscataway, New Jersey) Phone: 1-84 (USA/Canada) Phone: 1-91 (All Others) E-mail: Please note: T-Cubed Systems, Inc.

Has no connection or affiliation with Telcordia, and Telcordia does not review, approve, or support the RelCalc software in any way.Majlesi Journal of Telecommunication DevicesĪ Comparative Overview of Electronic Devices Reliability Prediction Methods-Applications and Trends Frederick Ojiemhende Ehiagwina1*, Titus Olugbenga Adewunmi2, Emmanuel Oludare Seluwa3, Olufemi Oluseye Kehinde4, Nafiu Sidiq Abubakar5 1-Department of Electrical Electronics Engineering, School of Engineering, Federal polytechnics Offa, Offa kwara state, Nigeria Email: (corresponding author) 2-Department of Electrical Electronics Engineering, School of Engineering, Federal polytechnics Offa, Offa kwara state, Nigeria Email: 3-Department of Electrical Electronics Engineering, School of Engineering, Federal polytechnics Offa, Offa kwara state, Nigeria Email: 4-Department of Electrical Electronics Engineering, School of Engineering, Federal polytechnics Offa, Offa kwara state, Nigeria Email:, 5-Department of Computer Technology Engineering, School of Engineering, Federal polytechnics Offa, Offa kwara state, Nigeria Email: ĪBSTRACT: Reliability prediction is vital in the conception, definition, design, development, operation and maintenance phase of electronic devices. It is needed at various system levels and degrees of detail, in order to evaluate, determine and improve the dependability measures of an item when designing electronic devices in view of the high level competition among device manufacturers.

Telcordia sr 332 handbook registration#ĭifferent reliability prediction methods or models are available for electronic devices.

Telcordia sr 332 issue 4