sensor lifetime and aging characteristics, BME688

[abstractfish]

Hi all,

I'm wondering what to expect from prolonged use of the BME688. What is the expected lifetime of it? In years, or sampling cycles, or...

What can we expect in terms of data accuracy across that lifetime?

We're using it in an outdoor setting, and every five minutes take TPH data, plus at least a forced mode G read, but working on a profile G sample.

Thanks,

[BSTRobin · Accepted solution]

Hi abstractfish,

For BME688 lifetime, we usually perform accelerated storage & stress tests according to JEDEC standards. We can provide the attached document (INTERNAL version!) with the customer’s watermark for information, if there is an NDA in place.
A usual assumption is for instance is that if accelerated stress tests like HTOL and THB are passed over 1000 hours, that this corresponds to the load of 10 years in the field. However, if a 1000 hour THB corresponds to 10 years stress or more/less is something which the customer has to derive from his application conditions (“mission profile”).

[abstractfish]

Thanks. DM sent.