Ntag ic temperature condition question.

[JJYOO]

Hello.

We are developing a product using NFC tag function.

NXP's NFC products have temperature specifications of -25 to 75 ambient temperature and -55 to 125 storage temperature.

Is it possible to operate even if I save the ntag in -40 for 4 hours and return it to -25? And wouldn't it affect the product?

Thanks in advance.

[KaiLi]

Hello @JJYOO 

The critical value of ambient temperature at -25 degrees Celsius, it should be ok to work at this temperature, but the performance of the chip may not be very good. So it is not recommended to work near the critical value.

Best Regards,

kelly

[JJYOO]

Dear kelly @KaiLi 

Really appreciate your test result and quick reply.

Then, is it okay not to operate at -40 temperature as shown in the specification?

Best Regards,

JJYOO

[KaiLi]

Hello @JJYOO 

In the ambient temperature range of 0°C to 50°C, the PICC should work normally. This is the ISO-14443 protocol specification for temperature. So it is not recommended to work at such extreme temperatures, in which case the RF signal performance will be degraded.

Best Regards,

kelly

[JJYOO]

Hello. kelly @KaiLi 

I asked the wrong question.

It won't work at -40 temperature.

It will be stored at temperature -40 as written in the specification of the IC.

After that, is there no problem if it operates in the operating temperature range?

Best Regards,

JJYOO

[KaiLi]

Hello @JJYOO 

Yes, there is no problem within the normal operating temperature range.

Best Regards,

kelly