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Written by Electronic Eel on 2024-05-20 at 10:27

Trying to understand a datasheet of a NTC, Murata NXFT15XH103FEAB021. They specify the beta/B value, very good, I understand how to calculate temperature / resistance with it.

But they also mention other B-Constants as "Reference Values" for different temperature ranges. I don't understand what they want to tell me with them. Can anyone explain?

https://www.murata.com/en-eu/products/productdetail?partno=NXFT15XH103FEAB021

[#]electronics #datasheet

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Written by miek on 2024-05-20 at 11:10

@electronic_eel The B-"constant" isn't really constant, it varies with temperature range because it comes from fitting an exponential function to the real characteristics.

I think what they're saying here is that between 25 to 50°C they guarantee the best fit within that tolerance and, beyond that, they give some typical values for reference but don't test or guarantee it.

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Written by jaseg on 2024-05-20 at 11:22

@miek @electronic_eel That would be my reading of that too.

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