Thermal Management Calculators

Heatsink

Calculate required heatsink thermal resistance and junction temperature for power devices

Trace Temp

Calculate PCB copper trace temperature rise under load current using IPC-2152

Thermal Resistance Network

Calculate junction, case, and heatsink temperatures through a series thermal resistance network (θJC + θCS + θSA) for component thermal management

Junction Temperature

Calculate semiconductor junction temperature from power dissipation and thermal resistance chain (θJC + θCS + θSA). Essential for transistor, MOSFET, and IC thermal design.

Heatsink Selection

Calculate the required heatsink thermal resistance (θSA) to keep a device junction below its maximum temperature. Use this to select an appropriate heatsink.

Thermal Via Array

Calculate thermal resistance of a PCB thermal via array for heat spreading from SMD packages to inner copper planes or heatsinks.