Adhesive silicone composition and an adhesive film or tape

An adhesive silicone composition comprising the following components (A) through (E):

• (A) a linear or branched organopolysiloxane having at least two alkenyl groups in a molecule in an alkenyl group content of at least 0.0005 mol/100 g and less than 0.15 mol/100 g, in an amount of 40 to 100 parts by mass,
• (B) an organopolysiloxane comprising R23SiO1/2 units and SiO4/2 units, wherein R2 is, independently of each other, a substituted or unsubstituted, monovalent hydrocarbon group having 1 to 10 carbon atoms, having a mole ratio of the R23SiO1/2 units to the SiO4/2 units being 0.5 to 1.5, and optionally having a hydroxyl or alkoxy group bonded to a silicon atom, in an amount of 60 to 0 parts by mass, provided that a total amount of components (A) and (B) is 100 parts by mass,
• (C) an organohydrogenpolysiloxane having at least three hydrogen atoms each bonded to a silicon atom in a molecule and having no aryl group, in such an amount that a ratio of the number of the SiH groups in component (C) to the number of the alkenyl groups in component (A) is 0.5 to 15,
• (D) a platinum group metal catalyst in a catalytic amount, and
• (E) an organohydrogenpolysiloxane having at least three hydrogen atoms each bonded to a silicon atom in a molecule and having an aryl group-containing organic group, wherein a ratio of the number of the aryl group-containing organic group to a total of the number of the hydrogen atoms each bonded to a silicon atom and the number of groups each bonded to a silicon atom is 0.05 to 0.40, in an amount of 0.01 to 10 parts by mass per total 100 parts by mass of component (A) and component (B), provided that a ratio of the number of the SiH groups in component (E) to the number of the alkenyl groups in component (A) is 0.1 to 15.