Forum: Reliability & Maintainability Questions and Answers

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Posted by: Michael Nixon
Date posted: Wed Feb 9 19:16:19 US/Eastern 2000
Subject: Reliability activities
Message:
Greeting
Is there any information about the reliability activities at different product life cycle stages? I need the whole picture. Thanks in advance. Mike

Replies:
Reliability Product Life
Bruce Dudley Wed Feb 16 13:20:22 US/Eastern 2000

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Posted by: Kang Zhang
Organization:ELDEC Corp.
Date posted: Wed Feb 9 16:11:35 US/Eastern 2000
Subject: False Alarm Rate Model in BIT circuitry analysis
Message:
Hello,
Does someone have some experience about False Alarm Rate Models in BIT circuitry analysis? Any information is welcome. Thanks. Kang

Replies:
False Alarm Rates
Bruce Dudley Thu Feb 17 15:37:46 US/Eastern 2000

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Posted by: RS Moore (bob.moore@bae.co.uk )
Organization:BAE SYSTEMS
Date posted: Wed Feb 9 5:04:46 US/Eastern 2000
Subject: Tantalum Capacitors
Message:
Does anyone have any experience of whether SMT tantalum capacitors need series resistance to increase the circuit impedance thereby reducing the probability of the capacitor failing short circuit? If so, what is the likely improvement?
I have experienced 2 failure incidents in endurance testing on a PEC where the capacitors are use as decouplers on a 5V and 15V rail. They are 40% voltage derated. Any thoughts? Bob Moore

Replies:
Tantalum SMT Capacitors
Bruce Dudley Wed Feb 16 15:34:23 US/Eastern 2000

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Posted by: Daniel Mahoney
Date posted: Fri Feb 4 10:19:48 US/Eastern 2000
Subject: Mechanical dormant failure rates
Message:
Hello all.
Can anyone shed some insight into the dormant failure rate ratio one should use for mechanical components. The various handbooks suggest numbers of 1 to 10 through 1 to 100 for electronic components, but I would think that mechanical components would be much higher. Any thoughts?

Replies:
Mechanical Dormant Failure
Bruce Dudley Mon Feb 7 9:57:05 US/Eastern 2000

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Posted by: David Vermeis (dvv@Ingersoll.com )
Organization:Ingersoll Milling Machine Co.
Date posted: Thu Feb 3 9:18:09 US/Eastern 2000
Subject: RELEX software
Message:
I'm looking for opinions about RELEX software. If you are a user please let me know what you think of the program and support. Thank you.

Replies: (list all replies)
About RELEX Software tool
Xiangping,Wu Mon Feb 14 21:37:32 US/Eastern 2000
Relex Software
Leroy Meyers Tue Feb 15 10:25:53 US/Eastern 2000
RELEX software
Allan Brown Tue Jun 20 13:05:45 US/Eastern 2000
Relex Software
Allan Brown Fri Jul 28 12:05:58 US/Eastern 2000
Relex
Allan Brown Thu Aug 17 10:18:30 US/Eastern 2000

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