Basic Reliability Prediction Software

Basic Reliability Prediction (MTBF Calculation)

RAM Commander software prediction module is a reliability tool providing everything necessary for reliability prediction (MTBF or failure rate prediction/calculation). RAM Commander software prediction module is based on one of the prediction models for electronic and mechanical equipment.
It contains more than 30 reliability prediction methods.





Reliability prediction methods for Electronic components


Operating Reliability Reliability Prediction Methods

BELLCORE Issue 5, 6
CNET RDF93 rev. 02/95
FIDES Guide 2004
FIDES Guide 2009 Issue A
GJB/Z 299B Part Count
GJB/Z 299B Part Stress
GJB 299C Part Stress / Part Count
HDBK 217Plus
HDBK 217Plus-2015
IEC 62380
MIL-HDBK-217E-1 Part Stress
MIL-HDBK-217F-1 Part Count
MIL-HDBK-217F-1 Part Stress
MIL-HDBK-217F-2 Part Count
MIL-HDBK-217F-2 Part Stress
Siemens SN 29500-1
Siemens SN 29500-2005-1
Siemens SN 29500-2015
Telcordia SR-332 Issue 1
Telcordia SR-332 Issue 2
Telcordia SR-332 Issue 3
Telcordia SR-332 Issue 4
UTE C 80-810

Non-Operating Reliability

GJB/Z 108A-2006 Detailed
MIL-HDBK-217E-1 draft
Reliability Toolkit (1995)

Reliability prediction methods for Mechanical components



NSWC-98/LE1 Mechanics
Stress/Strength Analysis


RAM Commander's reliability module supports 'one-click' automatic switch between different prediction methods.
Each method requires a set of component parameters which should be defined in order to calculate its reliability:

FIDES Reliability Prediction





RAM Commander makes management of these complex data much easier and more convenient, by providing a comprehensive set of reliability libraries.

Components Library


RAM Commander contains built-in electronic components library. ALD supplies the library containing hundreds of thousands (a total number of records is currently 500,000 and continues growing) of widely used electronic components by the world leading manufacturers. The RAM Commander team continually updates this library adding more manufacturers' data on a monthly basis.

Customers also may update the library - both manually and by importing components data.

Part Number Recognition
Leading manufacturers use special algorithms for naming their parts. RAM Commander implements these algorithms for the opposite direction in order to get reliability data for each Part Number. Our reliability software supports algorithms for decoding Part Numbers of passive components (Resistors and Capacitors) of the following manufacturers:
AVX, ATC, Bourns, Cal-chip, DALE, Hitano, Garrett, IRC, Johanson, Kemet, KOA, Kyocera, Mallory, Meritek, Murata, MSI, NIC, Nichicon, Novacap, Samsung, Siemens, Syfer, OhmCraft, Paccom, Philips, Phycomp, Ralec, ROEDERST, TDK, TaiyoYuden, Vishay, Roedenstein, Vitramon, Yageo.

GPRD Library
General Part Reliability Data (GPRD) is an additional reliability data library available for users. It is used to store manufacturers' provided or field reliability data (obtained from FRACAS or another source).

Reliability prediction methods described above, reliability libraries and convenient project tree building and management utilities makes RAM Commander reliability prediction module a must-have tool for reliability engineering.

RAM Commander allows generating various reports with a breakdown of MTBF figures per system, unit, board and component levels as a result of reliability prediction:

Assembly Composite Report
Obtained failure rates are then used in reliability and availability analysis using Temperature Curve, Mission Profile, Pareto and other tools - see Reliability & Availability Analysis Software Module.

See also:

Reliability & Availability Analysis Module
RAM Commander product homepage 
Reliability prediction methods Overview
ALD Reliability&Safety Services Overview