Polycarbonate resin composition

A polycarbonate resin composition comprising:

• 100 mass parts of a polycarbonate resin comprising a polycarbonate resin (A1) having a structural unit of formula (1) and a polycarbonate resin (A2) having a structural unit of formula (2) in a mass ratio (A1)/(A2) of 100/0 to 10/90;
• 3 to 20 mass parts of a phosphorus flame retardant (B), which is a phosphazene compound and/or a condensed phosphate ester of formula (3);
• 2 to 20 mass parts of a silicone flame retardant (C), which is a polyorganosiloxane-containing graft copolymer;
• and
• 3 to 100 mass parts of talc (D),
• wherein in the formula (1), R1 is a methyl group, R2 is a hydrogen atom, and X is an isopropylidene group,
• wherein in the formula (2), X is an isopropylidene group,
• wherein in the formula (3), R1, R2, R3, and R4 each represent an alkyl group having 1 to 6 carbons or an aryl group having 6 to 20 carbons which are optionally substituted by an alkyl group;
• p, q, r, and s are each 0 or 1;
• k is an integer from 1 to 5;
• and X1 represents an arylene group,
• wherein a ratio [(B)+(C)]/(D) between a total content of the phosphorus flame retardant (B) and the silicone flame retardant (C) and the content of the talc (D) is not more than 1.05.