Will CCD of digital camera age?

Yes, of course, photosensitive electronic components will.

But it is very slow and has no obvious effect on the photos.

When the CCD fails, I'm afraid the rest of the fuselage will be dead long ago, and the updated model has not been known for generations.

If it is a SLR camera, pay attention to dust removal and don't change the lens in a dusty place.

If it is a general dc, ccd aging can be ignored, which is probably a fault problem.