Tools/Thermal Via Calculator

Thermal Via Calculator

Design thermal via arrays for heat dissipation

Input Parameters

Results

Recommended Via Array

3 × 3(9 vias)

Pitch: 1.00 mm

Single Via R

192.4 °C/W

Array R

21.38 °C/W

Actual Temp Rise

21.4 °C

Heat Transfer

1.87 W

Design Guidelines

  • Use via-in-pad for best thermal performance
  • Fill vias with copper or conductive epoxy
  • Connect to large copper pour on opposite side
  • Minimum 0.6mm pitch for standard process

Via Fill Options

Copper Filled

Best thermal: ~385 W/m·K

Conductive Epoxy

Good: ~2-4 W/m·K

Non-Conductive Fill

Poor: ~0.2 W/m·K

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