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TeMa_2997106
Contributor II

I want to know reliablility of S29GL01GS10DHI010.

- FIT rate (I hear it is "100". Is it correct?)

- Conditions for the calculation (Junction Temperature/Confidential level)

Can you please provide me.

Thanks,

Tetsuo

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1 Solution
BushraH_91
Moderator
Moderator

Hello Tetsuo-san

Please see below

S29GL01GS10DHI010

Theta JA = 27.3 C/W

Theta JB = 5.7 C/W

Theta JC =  6 C/W

TJmax = 90.0  °C

Thank you

Regards,

Bushra

View solution in original post

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11 Replies
SudheeshK
Moderator
Moderator

Hello,

Please see the qualification report for the part S29GL01GS for the FIT rate. It is available at: https://www.cypress.com/file/502411/download ​, refer page 6. Please give us some more time to provide you the thermal parameters to calculate junction temperature.

Thanks and Regards,

Sudheesh

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BushraH_91
Moderator
Moderator

Hello,

Please specify the package and full MPN.

Thank you

Regards,
Bushra

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TeMa_2997106
Contributor II

Bushar-san,

Is "S29GL01GS10DHI010" not MPN?

Here is the web site for this device.

Thanks,

Tetsuo

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TeMa_2997106
Contributor II

Bushar-san,

Any update on this thread?

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BushraH_91
Moderator
Moderator

Hello Tetsuo-san

Please see below

S29GL01GS10DHI010

Theta JA = 27.3 C/W

Theta JB = 5.7 C/W

Theta JC =  6 C/W

TJmax = 90.0  °C

Thank you

Regards,

Bushra

View solution in original post

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TeMa_2997106
Contributor II

Bushra-san,

Thank you for your support.

What is the confidence level?

Is it 99% (α = 0.01)?

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BushraH_91
Moderator
Moderator

Hello Tetsuo-san,

I am not sure I understand your question. Can you please explain in detail?

Thank you

Regards,

Bushra

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TeMa_2997106
Contributor II

Bushra-san,

Please refer to the URL below.

https://en.wikipedia.org/wiki/Confidence_interval

If you don't use such statistical methods, please let me know.

Thanks,

Tetsuo

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BushraH_91
Moderator
Moderator

Hello Tetsuo-san,

Sorry still not clear. Are you looking for Tjmax or something else confidence level?

Thank you

Regards,

Bushra

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TeMa_2997106
Contributor II

Bushra-san,

For example, in the application note below, 95% CL is used to calculate SER.

(it is SER calculation, so it may not be a suitable example)

https://www.cypress.com/file/44261/download

As an example of another company, TI has the following materials.

http://www.ti.com/lit/an/spraby3/spraby3.pdf?&ts=1589935859658

(this document states that CL = 60%.)

Did you use this factor to calculate the FIT for this device?

Thanks,

Tetsuo

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BushraH_91
Moderator
Moderator

Hello Tetsuo-san,

Average Failure Rate FITS @ 55°C, 60% Conf.

Early Life - 87

Inherent Life - 23

Ea eV - 0.66

MTTF (yrs) - 4963

Thank you

Regards,

Bushra

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