SensorsのトピックRe: MMA845x safety features

MMA845x safety features

Asael7 — Tue, 03 Feb 2026 20:54:00 GMT

Hi.

I am using the MMA8453 in some of company projects.

We need to apply for ISO 13849-1, so, in datasheet I don't find safety features, could you tell me if this accelerometer have safety features. If not, I really appreciate if you can recommend some other part numbers.

I know we can use redundancy but if we can use only one accelereometer to comply with the ISO 13849-1 we want to evaluate that option.

Thanks

Re: MMA845x safety features

TomasVaverka — Mon, 08 Mar 2021 10:01:31 GMT

Hi Asael,

The MMA8453 does not have any safety features.

They are more common in our automotive motion sensors such as the FXLS9xxx family of single and dual channel accelerometers.

Best regards,

Tomas

Re: MMA845x safety features

Asael7 — Mon, 08 Mar 2021 23:29:36 GMT

Hi. Thanks for the answer.

Could you tell me the MTTF (mean time to failure) of the MMA845x?

Re: MMA845x safety features

TomasVaverka — Tue, 09 Mar 2021 08:50:09 GMT

Hi Asael,

FIT: 20 failures / billion device hours
MTTF: 51,009,141 hrs

Best regards,

Tomas

Re: MMA845x safety features

Asael7 — Fri, 12 Mar 2021 21:26:19 GMT

Thanks for the info Tomas

Re: MMA845x safety features

Asael7 — Wed, 10 Nov 2021 18:46:45 GMT

Hi Tomas

could you share with me please?

1. the MTTF of the NXP MMA8652FCR1

2. and the Diagnostic Coverage value of MMA8453QR1 and MMA8652FCR1

thanks in advance