Magnetic carrier and two-component developer

A two-component developer comprising:

• a magnetic carrier;
• and
• toner, wherein
• the magnetic carrier includes a magnetic carrier core and a coating resin layer coating a surface of the magnetic carrier core,
• the coating resin layer contains resin A and resin B,
• a content of the resin A is 1% by mass or more and 50% by mass or less based on mass of resin components contained in the coating resin layer,
• a content of the resin B is 50% by mass or more and 99% by mass or less based on mass of resin components contained in the coating resin layer,
• the resin A has a first partial structure represented by formula (1) and a second partial structure represented by formula (2),
• the resin B has a third partial structure represented by formula (3) and a fourth partial structure represented by formula (4),
• when a mass of the resin A is represented by X, a total mass of the first partial structure in the resin A is represented by Ma, and a total mass of the second partial structure in the resin A is represented by Mb, X, Ma and Mb satisfy
• 0.50≤(Ma+Mb)/X≤1.00
• 0.10≤Ma/Mb≤30.0, and
• when an SP value of the first partial structure of the resin A is represented by SPa1, and an SP value of the third partial structure of the resin B is represented by SPb3, SPa1 and SPb3 satisfy
• 0≤|SPa1−SPb3|≤10.0,
• wherein in formula (1), R1 represents a hydrogen or methyl group,
• X1 represents —COO— or —O—,
• R2 represents an alkyl group having 1 to 20 carbon atoms, the alkyl group is a halogen-substituted alkyl group in which at least a part of hydrogen atoms is substituted with a fluorine atom, and a part of remaining hydrogen atoms may be substituted with a halogen atom other than a fluorine atom, and based on a total number of hydrogen atoms, fluorine atoms, and halogen atoms other than fluorine atoms contained in the halogen-substituted alkyl group, a proportion of the fluorine atoms is 5.0 atom % or more, and a proportion of the halogen atoms other than fluorine atoms is 40.0 atom % or less,
• R3 represents a hydrogen or methyl group,
• R4 represents a hydrocarbon group having 1 to 12 carbon atoms,
• represents a hydrogen or methyl group,
• R6 represents a hydrocarbon group having 3 to 10 carbon atoms containing an alicyclic structure,
• R7 represents a hydrogen or methyl group, and
• R8 represents a chain hydrocarbon group having 1 to 12 carbon atoms, and
• when an average value of a total number of the first partial structure and the second partial structure in molecular chains constituting the resin A is represented by m, the m satisfies the following formula
• 50≤m≤250.