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Entry type: Download, Entry ID: 16818490, Entry date: 03/21/2018

Mean Time Between Failures (MTBF) - list for SIMATIC products

  • Entry
  • Associated product(s)
MTBF = Mean Time Between Failures = time between two consecutive failures of a component.

This value which is given in years or hours (MTBF list contains values in years) is a pure statistical value. It is calculated on the basis of the failure rate of the modules of a component. The values given here are generally based on an ambient temperature of 40 degrees C.
 16818490_reliability_en.pdf (118,0 KB)

Support in calculating system MTBF:

The basic list in mtbf.zip contains an Excel list of the MTBF values currently available for the SIMATIC products. Please contact Customer Support at this link
for MTBF values of SIMATIC products that are not in the basic list.

Basic list
 Registrierung notwendig  mtbf.zip (239,8 KB) 

The files are saved in the EXCEL V4.0 format.

Background information about MTBF
The mtbf_en.pdf file contains more information about MTBF. 
 16818490_mtbf_en.pdf (370,2 KB)

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