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Find heat sinks, thermal pads, fans and accessory bundles in Cape Town. Local stock, branch pickup, VAT invoices and quotes for makers and education.
In-branch availability and collection to avoid import delays.
Match thermal resistance, mounting and airflow to your project.
Heatsink plus pads, fans and clips; quotes for education and procurement.
Whether you need aluminium extrusion heatsinks for power supplies, stamped fins for PCB cooling, or compact cooling solutions for Raspberry Pi and embedded boards, Communica stocks thermal management components suitable for prototyping and production. Buying locally reduces lead times and lets you collect parts from our Cape Town branch or Samrand warehouse, and access VAT invoices for institutional purchases.
| Parameter | Why it matters | Typical value |
|---|---|---|
| Thermal resistance (°C/W) | Estimate of temperature rise per watt dissipated | 0.5-10 °C/W depending on size |
| Material | Affects conductivity and weight | Aluminium (common), copper (higher performance) |
| Mounting style | Compatibility with PCB or chassis | Clip, screw, adhesive, solderable tab |
Before purchasing, check that the heatsink footprint and mounting method match your PCB or enclosure. For quick browsing of categories and part types, see our collections page Browse Collections and the full product index All Products.
Tip: match thermal interface materials to the surface finish-use thermal paste for flat metal-to-metal contact and thermal pads where gap filling is needed.
Select a heatsink based on the device's dissipated power and allowable temperature rise. Use Ohm's-law-style thinking for thermal calculations: Temperature rise (°C) = Power (W) × Thermal resistance (°C/W). For example, a 5 W MOSFET on a heatsink rated 2 °C/W will rise roughly 10 °C above ambient.
If ambient is 25 °C and your device dissipates 8 W onto a heatsink with 3 °C/W thermal resistance: Estimated device temperature = 25 + (8 × 3) = 49 °C. Factor in safety margin for enclosure heating.
Communica supports specification comparison and quotes for bulk or specialised needs. For Cape Town customers, check branch trading hours and collection options on our branches page Branches & Trading Hours. If you want company background or procurement information, see our about page About Us.
Common bundles include an extruded heatsink, thermal pads or paste, mounting clips and a matched fan. When requesting a quote, specify required dimensions (L×W×H), thermal resistance target, mounting style and whether you need RoHS-compliant parts for academic projects. Use our buying guide for heat sinks in Cape Town to explore trusted makers and component lines Shop by Brand.
Actions: Shop Now to view stock and product pages, Check Stock in Samrand for fast collection, Compare Specs to select the right solution, or Request a Quote for bulk educational or institutional orders.
Lead times vary by model-small heatsinks and thermal pads are commonly stocked, while specialised copper sinks or custom extrusions may require longer procurement. Prices and availability are subject to market conditions; sample unit examples for South Africa are typically priced from around ZAR 30 for basic chip sinks to several hundred ZAR for large extrusions or fan-assisted assemblies (estimates). Always request a current quote for accurate figures.
Communica supplies semiconductors and electronic components to industries such as automotive, electrical, automation, mining, and education.
Disclaimer: This content is for educational purposes only. Product availability, pricing, and specifications are subject to change. Always verify current details on the retailer's website before making a purchase. We may earn affiliate commissions from qualifying purchases.
Get answers to common questions about Power And Thermal Management
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