For this device, the size/dimension of the program is 0.039Lx0.020W 1.00mmx0.50mm.As a general rule, temperature coefficient of resistance is simply the change in electrical resistance of a substance per degree change in temperature, and its value is X6S.
GRT155C81E224KE01D Features
a size/dimension of 0.039Lx0.020W 1.00mmx0.50mm with X6S being the highest temperature coefficient
GRT155C81E224KE01D Applications
There are a lot of Murata Electronics GRT155C81E224KE01D applications of ceramic capacitors.