1812 (4532) Chip Inductors Coilcraft 1812 (4532) Chip Inductors feature inductance values from 22nH to 1000µH with tolerances as low as 2%. These shielded and unshielded inductors are available with ceramic, ferrite, ceramic/ferrite, or air cores. They offer a minimum Q factor in a range from 42 to 100. Coilcraft 1812 (4532) Chip Inductors provide excellent current carrying capacity. AEC-Q200 versions are available.