Symbol: λ (lambda), with the common unit in industry being W/(m·K) or abbreviated as W/mK.
Thermal conductivity is the core indicator for measuring the rate at which a material transfers heat.
The smaller the value, the poorer the thermal conductivity and insulation performance.
The higher the value, the better the thermal conductivity and heat dissipation capacity.
In simple terms:
λ=0.03: Heat cannot easily penetrate through this material; it consists of insulating cotton.
λ=3.0: Rapid heat conduction with a thermal insulation silicone pad.
Formula logic: Under constant thickness and temperature difference, the higher the thermal conductivity, the more heat passes through the material per unit time.