CalculatorLanguage MTBF Calculator English (U.S.) English Turkish German Italian French Spanish Japanese
Back Forward Up System Tree View System Tree Management System Tree Analysis Change Information Logout

MIL-HDBK-217F
Section 5 Microcircuits
Section 6 Discrete Semiconductors
Section 7 Tubes
Section 8 Lasers
Section 9 Resistors
Section 10 Capacitors
Section 11 Inductive Devices
Section 12 Rotating Devices
Section 13 Relays
Section 14 Switches
Section 15 Connectors
Section 16 Interconnection Assemblies
Section 17 Connections
Section 18 Meters
Section 19 Quartz Crystals
Section 20 Lamps
Section 21 Electronic Filters
Section 22 Fuses
Section 23 Miscellaneous
Section 24 Constant MTBF
Section 25 Power Unit
Section 26 Battery Unit
Section 27 Control Unit
Section 28 Display Unit
Section 29 Internal Unit
Section 30 External Unit
Section 31 Input Unit
Section 32 Output Unit
Section 33 CPU Unit
Section 34 Board Unit


MTBF Calculator RSS Feeds
Authentication Authentication
Username
Password
Security Code Code Refresh
! [ 'Guest' account is active ]
Username: guest, Password: guest
Sign Up Sign Up

Forgot Password Forgot Password

ShareShare Share
MTBF Calculator MTBF Calculator
Mean time between failures (MTBF) is the mean (average) time between failures of a system, the reciprocal of the failure rate in the special case when the failure rate is constant. Calculations of MTBF assume that a system is 'renewed', i.e. fixed, after each failure, and then returned to service immediately after failure. A related term, mean distance between failures, with a similar and more intuitive sense, is widely used in transport industries such as railways and trucking. The average time between failing and being returned to service is termed mean down time (MDT).
For electronic products, it is commonly assumed that during the useful operating life period the parts have constant failure rates, and part failure rates follow an exponential law of distribution. In this case, the MTBF of the product can be calculated.
Zoom   Get it from CNET Download.com!
Previous Next Up World Map Futures Info Support Logout
CR = 150224/586490 (This Click/Total Click)