FIT rates (failure rates) - MTBF/MTTF calculations

zhaowhong · ‎2025-10-20

Dear ST Technical Support,

I am looking for reliability data for the STM32L151 series microcontrollers, including:
- FIT rates (failure rates)
- MTBF/MTTF calculations
- Lifetime expectations
- Qualification test results

Could you please provide the relevant documentation or direct me to the appropriate resources?

Thank you.

mƎALLEm · ‎2025-10-20

Hello,

For MTBF/MTTF questions please ask them over the ST online support: https://ols.st.com/

To give better visibility on the answered topics, please click on "Accept as Solution" on the reply which solved your issue or answered your question.

zhaowhong · ‎2025-10-20

hello

Waiting for the result online or waiting until tomorrow?

mƎALLEm · ‎2025-10-20

No one will answer that question here.

So please ask it in https://ols.st.com/ or https://my.st.com/ols

Please refer to this knowledge base: How to get MTBF/FIT values on STMicroelectronics products

Thank you for your understanding

To give better visibility on the answered topics, please click on "Accept as Solution" on the reply which solved your issue or answered your question.