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Calculateur Thermique Dissipateur — Outil en ligne gratuit

Température jonction depuis résistance thermique R_θ

Température jonction à partir puissance dissipée, résistance thermique (jonction-boîtier, boîtier-dissipateur, dissipateur-ambiant), ambiance. Outil design électronique.

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Heat Sink Thermal Calculateur

Junction temperature from power × thermal resistance + ambient. Check T_J vs T_Jmax with safety margin. Required heatsink R_θSA for given specs.

How to use this tool

  1. 1

    Power dissipation

    Component power in watts.

  2. 2

    Thermal resistances

    Junction-to-case, case-to-sink, sink-to-ambient.

  3. 3

    Junction temperature

    Compare to T_jmax.

Frequently Asked Questions

Why R_θJC + R_θCS + R_θSA?
Heat flows in series: junction → case → heatsink → ambient. Each interface has thermal resistance. Total R_θJA = sum. T_J = T_A + (P × R_θJA).
How to choose heatsink R_θSA?
Required R_θSA = (T_Jmax - T_A)/P - R_θJC - R_θCS. Below required = OK. Smaller R_θSA = larger/finned heatsink. Add safety margin (T_Jmax - 25°C).
Thermal interface material?
Thermal grease ~0.5°C/W contribution. Thermal pad ~1-2°C/W. Non interface = 5-10°C/W (terrible). For high-power: phase-change pad or grease + good clamping.

À retenir

  • Heat Sink Thermal Calculateur is a free, browser-based calculator tool — junction temp from thermal resistance r_θ.
  • Non signup, no downloads, no file uploads — your data stays on your device.
  • Works on desktop, tablet, and mobile. Install as a PWA for offline access.

How to Use Heat Sink Thermal Calculateur

  1. Open the tool: Launch Heat Sink Thermal Calculateur on Outilolis — no account or download needed.
  2. Enter your data: Paste text, enter values, or select a file directly in your browser.
  3. Get instant results: Everything is processed locally — results appear immediately.
  4. Copy or download: Save your output or share it. Bookmark for quick access next time.

Heat Sink Thermal Calculateur — Quick Facts

Prix
Gratuit — sans limites, sans filigrane, sans paywall
Confidentialité
100% dans le navigateur — aucune donnée n’est envoyée à un serveur
Plateforme
Tout navigateur moderne — desktop, tablette ou mobile
Catégorie
Calculateur Outils on Outilolis
Hors ligne
Works offline after first visit (Progressive Web App)
CaractéristiqueDétails
OutilHeat Sink Thermal Calculateur
CatégorieCalculateur
Inscription requiseNon
Téléversement de fichierAucun — traité dans le navigateur
Compatible mobileEntièrement adaptatif
CoûtGratuit pour toujours

Why Use Heat Sink Thermal Calculateur?

You should try Heat Sink Thermal Calculateur for a quick, private way to junction temp from thermal resistance r_θ. All processing happens in your browser. Your files and data never leave your device. According to web.dev, client-side processing is the gold standard for privacy.

On the other hand, dedicated APIs or desktop tools suit batch processing better. They also handle server-side automation. For everyday tasks, browser tools offer the best speed, privacy, and convenience.

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100% Confidentialité. Cet outil fonctionne entièrement dans votre navigateur. Vos données ne sont jamais envoyées à un serveur.