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Request a tailored quote for passive cooling: heatsinks, heatpipes, TIMs and assemblies. Local stock, VAT invoicing, branch pickup (Samrand, Pretoria, Cape Town).
Get itemised ZAR quotes with lead times, VAT invoices, and branch pickup options.
Provide power, temp targets and footprint to receive recommended heatsinks and TIMs.
Bundle heatsinks, heatpipes and mounting hardware for cleaner procurement and fit checks.
Requesting a quote for passive cooling technologies - such as aluminium heatsinks, heatpipes, thermal pads, and conduction plates - helps you match thermal performance to real-world constraints: enclosure size, mounting method, airflow (or lack of it), and production quantities. Communica serves South African makers, students and engineering teams with local availability, VAT invoicing, branch pickup and procurement-friendly quotes that note lead times and compatibility.
A typical quote for passive cooling technologies will list: unit price per SKU, minimum order quantity (if any), estimated lead time in days, shipping or branch collection options (Samrand, Pretoria CBD, Cape Town), VAT-inclusive totals, and accessories or mounting hardware. If you need account quoting and procurement terms, Communica can supply formal quotations and VAT invoices suitable for tertiary institutions and businesses.
| Component | Typical Use | Thermal Range |
|---|---|---|
| Extruded heatsink | PCB-mounted ICs, regulators | 0.5-5°C/W (varies by size) |
| Heatpipe | Transporting heat to remote sink | Depends on configuration; effective for 5-50 W transfers |
| Thermal pad | Fills gaps between components and sink | Thermal conductivity 1-12 W/m·K |
Explore Communica's range by category and brand while preparing your requirements: Shop by category, browse all products at All products, or learn about Communica’s history and services at About Us.
To get an accurate quote for passive cooling technologies, provide: expected power dissipation (W), allowable temperature rise (°C), mounting footprint (mm), preferred material (aluminium or copper), required finish, and production volume. Include photos or PCB outlines if possible - these details let suppliers size sinks or recommend heatpipes and TIMs effectively.
Use this basic approach to estimate required thermal resistance (Rth):
Rth_required = (T_junction_max - T_ambient) / Power_dissipation
Example: a 5 W regulator with a max junction of 125°C and expected ambient 40°C: Rth_required = (125 - 40) / 5 = 17°C/W. You would then select a heatsink plus interface solution whose combined thermal resistance is equal to or lower than 17°C/W, accounting for airflow or enclosure effects.
Common issues include poor contact due to uneven surfaces, incorrect TIM thickness, or underestimating enclosure heat buildup. For prototypes and student projects, choose forgiving TIMs (thicker pads) and modular heatsinks. For production, request sample parts on quote to validate fit and finish before bulk orders. Keep in mind local factors: longer lead times on custom extrusions and imported copper components can affect delivery - Communica will flag these in quotations.
Prepare a short specification sheet and send it via Communica’s quotation channels. For procurement teams, Communica can provide formal quotes with VAT details and payment terms. Check stock in Samrand or your nearest branch and request delivery or branch collection; see branch hours and locations at Branches & Trading Hours. If you prefer browsing by brands when specifying components, visit Shop by Brand.
Suggested CTAs for procurement workflows: Request a Quote, Compare Specs, Check Stock in Samrand, or Shop Now for standard heatsinks and TIMs. When you submit a request, include quantities and desired delivery date to get the most accurate pricing in ZAR; Communica’s quotes typically indicate whether prices are estimates or firm and note expected lead times.
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.
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