A polycarbonate blend composition comprising: (a) a first polycarbonate having a glass transition temperature of greater than 170°C as measured using a differential scanning calorimetry method, wherein the first polycarbonate is derived from: (i) one or more monomers having the structure HO-A 1 -Y 1 -A 2 -OH wherein each of A 1 and A 2 comprise a monocyclic divalent arylene group, and Y 1 is a bridging group having one or more atoms; or (ii) polyester monomer units having the structure wherein D comprises one or more alkyl containing C 6 -C 20 aromatic group(s), or one or more C 6 -C 20 aromatic group(s), and T comprises a C 6 -C 20 aromatic group; and (b) a second polycarbonate wherein the second polycarbonate is a polysiloxane block copolymer derived from (i) the structure wherein R comprises a C 1 -C 30 aliphatic, a C 6 -C 30 aromatic group, or a combination thereof, wherein Ar comprises one or more C 6 -C 30 aromatic group(s), or one or more alkyl containing C 6 -C 30 aromatic group(s), wherein E has an average value of 20-200; or (ii) the structure wherein R comprises a C 1 -C 30 aliphatic, a C 6 -C 30 aromatic group, or a combination thereof, wherein R 6 comprise C 6 -C 30 aromatic group, or a combination of a C 6 -C 30 aromatic group and a C 1 -C 30 aliphatic group, wherein E has an average value of 20-200; wherein the wt% siloxane of (b) is between 15% to 25%; (c) greater than 0.1 wt.% and less than 0.3 wt.% of the total blend composition of an anti-drip agent being polytetrafluoroethylene encapsulated in styreneacrylonitrile (TSAN), the perfluorinated polyolefin of the anti-drip agent being in a fibrous form; (d) 0.01 to 0.15 wt.% of a flame retardant additive based on weight of the blend composition; wherein the wt% of siloxane of the blended composition is between 1.5 and 5 %; wherein the blend composition has a heat deflection temperature of at least 150°C at 1.8 MPa, according to ASTM D 648-07; wherein the blend composition has a vicat softening temperature (Vicat B/50) of at least 170°C, according to ASTM D 1525-09; wherein an article molded from the blend composition has a notched Izod impact strength of at least 400 J/m at 23°C at a thickness of 5 mm (0.2 inches), according to ASTM D256-10; and wherein a molded article from the blend composition has a UL94 rating of V 0 at 1.5 mm thickness. (a) a first polycarbonate having a glass transition temperature of greater than 170°C as measured using a differential scanning calorimetry method, wherein the first polycarbonate is derived from: (i) one or more monomers having the structure HO-A 1 -Y 1 -A 2 -OH wherein each of A 1 and A 2 comprise a monocyclic divalent arylene group, and Y 1 is a bridging group having one or more atoms; or (ii) polyester monomer units having the structure wherein D comprises one or more alkyl containing C 6 -C 20 aromatic group(s), or one or more C 6 -C 20 aromatic group(s), and T comprises a C 6 -C 20 aromatic group; and (i) one or more monomers having the structure HO-A 1 -Y 1 -A 2 -OH wherein each of A 1 and A 2 comprise a monocyclic divalent arylene group, and Y 1 is a bridging group having one or more atoms; or (ii) polyester monomer units having the structure wherein D comprises one or more alkyl containing C 6 -C 20 aromatic group(s), or one or more C 6 -C 20 aromatic group(s), and T comprises a C 6 -C 20 aromatic group; and (b) a second polycarbonate wherein the second polycarbonate is a polysiloxane block copolymer derived from (i) the structure wherein R comprises a C 1 -C 30 aliphatic, a C 6 -C 30 aromatic group, or a combination thereof, wherein Ar comprises one or more C 6 -C 30 aromatic group(s), or one or more alkyl containing C 6 -C 30 aromatic group(s), wherein E has an average value of 20-200; or (ii) the structure wherein R comprises a C 1 -C 30 aliphatic, a C 6 -C 30 aromatic group, or a combination thereof, wherein R 6 comprise C 6 -C 30 aromatic group, or a combination of a C 6 -C 30 aromatic group and a C 1 -C 30 aliphatic group, wherein E has an average value of 20-200; wherein the wt% siloxane of (b) is between 15% to 25%; (i) the structure wherein R comprises a C 1 -C 30 aliphatic, a C 6 -C 30 aromatic group, or a combination thereof, wherein Ar comprises one or more C 6 -C 30 aromatic group(s), or one or more alkyl containing C 6 -C 30 aromatic group(s), wherein E has an average value of 20-200; or (ii) the structure wherein R comprises a C 1 -C 30 aliphatic, a C 6 -C 30 aromatic group, or a combination thereof, wherein R 6 comprise C 6 -C 30 aromatic group, or a combination of a C 6 -C 30 aromatic group and a C 1 -C 30 aliphatic group, wherein E has an average value of 20-200; (c) greater than 0.1 wt.% and less than 0.3 wt.% of the total blend composition of an anti-drip agent being polytetrafluoroethylene encapsulated in styreneacrylonitrile (TSAN), the perfluorinated polyolefin of the anti-drip agent being in a fibrous form; (d) 0.01 to 0.15 wt.% of a flame retardant additive based on weight of the blend composition; wherein the wt% of siloxane of the blended composition is between 1.5 and 5 %; wherein the blend composition has a heat deflection temperature of at least 150°C at 1.8 MPa, according to ASTM D 648-07; wherein the blend composition has a vicat softening temperature (Vicat B/50) of at least 170°C, according to ASTM D 1525-09; wherein an article molded from the blend composition has a notched Izod impact strength of at least 400 J/m at 23°C at a thickness of 5 mm (0.2 inches), according to ASTM D256-10; and wherein a molded article from the blend composition has a UL94 rating of V 0 at 1.5 mm thickness.