IGBT Power Loss & Junction Temperature Calculator

This calculator helps you determine if your Insulated-Gate Bipolar Transistor (IGBT) and thermal management system can safely dissipate the heat generated during high-power switching without exceeding safe operating limits.

Use this tool to:

  1. Calculate real-time power dissipation, combining Conduction loss VCE(on) and frequency-based Switching energy losses Eon + Eoff.
  2. Select the correct cooling strategy (e.g., TO-247 with a finned heatsink vs. liquid cooling) for your specific collector current and frequency.
  3. Identify thermal bottlenecks and decide when a lower VCE(on) module or a more aggressive thermal interface material is required to prevent thermal runaway.
IGBT Input Parameters
Results
Thermal Warning: Junction temperature exceeds 150°C. High-power IGBTs often require liquid cooling or massive heatsinks.

*Calculation: Conduction = VCE(on) * IC * Duty. Switching = (Eon + Eoff) * Frequency.

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