A heat-resistant resin composition having excellent thermal conductivity and heat dissipating compon

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PROBLEM TO BE SOLVED : To provide a thermally conductive resin composition which is improved in heat resistance or thermal degradation resistance in a low-oxygen atmosphere by containing a specific thermal stabilizer, and to provide a heat dissipation component using the same.SOLUTION : The thermally conductive resin composition for a low-oxygen heating environment, which is obtained by dispersing at least a thermally conductive filler (B) and a thermal stabilizer (C) in a resin (A) and is used in a low-oxygen heating environment, is characterized in that : the thermal stabilizer (C) is a rare earth oxide of a body-centered cubic crystal structure (or a C-type rare earth oxide); and the content of the C-type rare earth oxide is 0.005-100 pts.wt. based on 100 pts.wt. of the resin (A).