Safety Testing Approvals

Reliability Prediction and MTBF

Enquiries:                 Tel: +44 (0)1782 479 230

MIL-HDBK-217-F HDBK 217Plus Telcordia SR-332 IEC 62380 RDF 2000 China-299B N+1 Redundancy Mechanical Reliability MTBF calculations

HDBK 217Plus

HDBK 217Plus
217Plus incorporates the complete electronic failure prediction methodology for all of the major component categories found in MIL-HDBK-217. It incorporates new components and more modern field data that reflects the considerable improvements made in commercially available components

The 217Plus methodology is intended to be a replacement for MIL-HDBK-217-F "Reliability Prediction of Electronic Equipment". The failure rate models of 217Plus are restructured to be more accurate by enhanced approaches to accounting for environments, for quality, and for cycling effects on reliability. The methodology also allows users to combine its models with their own experience data in a Bayesian type approach.

At this stage it is not certain whether the market will accept 217Plus as a full replacement, because for design comparison it is essential to use the same model as the basis. 217Plus will, in general, produce a better MTBF figure than MIL-HDBK-217-F, however many buyers still specify the earlier standard to ensure like-for-like comparison

If you would like a quotation for reliability MTBF calculations to HDBK 217Plus or any of the other reliability models, please contact us on the numbers below.

If you are uncertain of the requirements or procedures involved we would be pleased to review your product specification and advise accordingly.

To contact us
For all enquiries please e-mail or telephone +44 (0)1782 479 230

Allied Approvals Ltd is incorporated and registered in the United Kingdom. Number 6750794.   VAT Registration Number 947 6965 55