The decay rates of organic materials increase with temperature. Materials with a greater thermal stability will remain unchanged for a longer time.

it increases

limited thermal stability

The thermal stability is the ability of the transistor to withstand changes in temperature without the transistor's parameters changing.

Transistors generally have poor thermal stability and in particular the Beta parameter increases with temperaure, which can cause thermal runaway in a badly designed circuit. This is well known and the bias current in transistors is normally stabilised by the application of negative feedback in proper circuit design.

Some are latent heat, temperature, thermal conductivity, stability (as opposed to explosiveness), insulation ability which is related to thermal conductivity, and others.