Linear Expansion (ΔL)
ppm/°C
mm
°C
°C
Temperature Change (ΔT)
80 °C
Change in Length (ΔL)
0.1848 mm
Final Length (Lբ)
100.1848 mm
ΔL = L₀ · α · ΔT
Heat Dissipation (Tⱼ)
EARTH
SPACE
W
°C
°C/W
°C/W
°C/W
Total Thermal Res. (θⱼₐ)
4.5 °C/W
Junction Rise (ΔTⱼₐ)
22.5 °C
Junction Temp (Tⱼ)
47.5 °C
Tⱼ = Tₐ + P · (θⱼ꜀ + θ꜀ₛ + θₛₐ)
Material Reference (α)
α is in ppm/°C (10⁻⁶/K). Click to use in calculator.
TIM & Interface Reference
Values are typical for TO-220 size interfaces. Click to use as θ꜀ₛ.