There is no degaussing of chip cards
Inside is a chip and a set of coils.
The card machine uses electromagnetic induction to supply power to the chip, and communicates signals through the coil.
If the changing magnetic field is too strong, maybe it will burn the chip? But there's no degaussing.
As for whether the phone case can be put inside, I personally feel that it is OK, but if it is a mobile phone that supports wireless charging, you put the card and the phone on the charging seat together, it will not damage the card.
I am not related professional, if there is any mistake, welcome to correct
No demagnetization.
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1, IC card is also known as chip card, with a CPU chip, so it is not magnetic, that is, it will not be demagnetized.
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2, if it is a contact IC card, ensure that the contact does not rust, non-contact IC card do not let the card bend and break, to prevent the coil inside from breaking.
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3, the IC card core is an integrated circuit chip, is the use of modern advanced microelectronics technology, the large-scale integrated circuit chip embedded in a small plastic card. Its development and manufacturing technology is much more complex than magnetic cards