Thermal Stack Builder
Visualize heat flow from junction to ambient. Model your thermal resistance network.
Parameters
1W50 W200W
0°C40°C85°C
100°C150°C200°C
0.1 (large heatsink)1.5 °C/W10 (small)
Thermal Stack
Low margin: 5.0°C
Junction (TJ)
145.0°C
RθJC = 0.5 °C/W|ΔT = 25.0°C
Case (TC)
120.0°C
TIM: Thermal Grease (High)|RθCS = 0.1 °C/W
Heatsink (TS)
115.0°C
RθSA = 1.5 °C/W|ΔT = 75.0°C
Ambient (TA)
40°C
Summary
Total RθJA:
2.10 °C/W
Total ΔT:
105.0°C
Power dissipated:
50 W
Max safe power:
52.4 W
Formula: TJ = TA + P × (RθJC + RθCS + RθSA)