A thermally conductive sheet includes a polyolefin elastomer mixed with a thermally
conductive filler. The amount of volatile organic gas generated from the sheet
is not more than 1000 g/cm2 per unit surface area. The amount
of volatile corrosive gas generated from the sheet is not more than 10 g/cm2
per unit surface area. The sheet has a thermal conductivity of 0.5 to 20
W/mK. This thermally conductive sheet generates fewer volatile substances
and can be used even in a closed place.