Alphacool
Alphacool 125 x 125 x 45mm Aluminum Heatsink 2 in 1 accessory
Passive 125 × 125 × 45 mm aluminium heatsink with high-density fins for chip, LED or amplifier cooling
- Aluminum construction conducts heat efficiently from components
- 125 x 125 x 45mm footprint covers large chip surfaces
- High-density fin array multiplies surface area for passive cooling
- Extruded solid block eliminates thermal interfaces that impede flow
- Suits LED, LCD, amplifier and voltage-regulator heat dissipation
Large Passive Aluminium Heatsink
This 125 x 125 x 45 mm aluminium heatsink acts as a passive heat exchanger for electronic components. It draws thermal energy away from chips, LEDs, LCD drivers, power transistors and voltage regulators. The extruded high-density fin array increases surface area so that surrounding air can absorb heat without any fan noise. It is supplied as a single unit ready for mounting on compatible flat surfaces.
Replaces Inadequate Stock Cooling
The block upgrades from basic clip-on spreaders or bare-component operation when temperatures climb under sustained load. The jump is worth it whenever a component runs hot enough to throttle or shorten its lifespan yet has no active airflow of its own. Builders who need forced-air performance or liquid-cooling integration should look elsewhere because this unit relies entirely on natural convection.
Steady-State Thermal Behaviour
Under continuous load the fin stack reaches a stable temperature gradient as heat conducts through the solid aluminium base into the dense fins. Because there are no moving parts, acoustic output stays at zero and reliability does not degrade with bearing wear. The 45 mm fin height provides enough mass to buffer short peaks, but thermal resistance is fixed by the extrusion geometry and ambient airflow.
Highlights
- Aluminum construction conducts heat efficiently from components
- 125 x 125 x 45mm footprint covers large chip surfaces
- High-density fin array multiplies surface area for passive cooling
- Extruded solid block eliminates thermal interfaces that impede flow
- Suits LED, LCD, amplifier and voltage-regulator heat dissipation
Specifications
No published specifications for this item yet.
Questions about this item
Will the 125 mm square base clear the mounting holes on my board?
The heatsink measures 125 mm by 125 mm at the base; compare those dimensions to your component’s hole pattern before ordering.
How do I attach this 45 mm tall fin stack to a chip?
Apply thermal paste to the component, press the flat aluminum base onto it, then secure with screws or clips that match your board’s mounting points.
When should I clean or replace this aluminum heatsink?
Remove dust from the high‑density fins with compressed air whenever buildup is visible; the solid aluminum body does not degrade, so replacement is only needed if physical damage occurs.
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