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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. Outils run in your browser; the few that need an outside service say so on the page.
  • 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
Traité dans votre navigateur. Les outils qui ont besoin d’un service externe l’indiquent sur la page. Les visites sont comptabilisées (Google Analytics).
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. Processing happens in your browser and files are never uploaded; the few tools that need an outside service say so on the page.

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.