40x40x11mm Heatsink Heat Sink Cooling for LED Power Memory IC Transistor

EAN	Does not apply
MPN	Does not apply
Brand	Makers Hut
Ships from	Cardiff, UK

The 40×40×11mm heatsink is a black anodised aluminium heat sink with 143 precision-cut fins, weighing 20 g, designed for cooling LED drivers, power ICs, memory modules, MOSFETs, and transistors.

With 143 fins in a 40×40×11 mm footprint, this 40×40×11mm heatsink provides a large thermal dissipation surface for passive or fan-assisted cooling. The black anodised finish improves radiative heat loss compared to bare aluminium, making it effective without forced airflow. In addition, at just 20 g it adds negligible mass to PCBs and enclosures.

Key Features of the 40×40×11mm Heatsink

• Dimensions: 40 mm × 40 mm × 11 mm, weight: 20 g
• 143 precision-cut fins — large surface area for efficient passive dissipation
• Black anodised aluminium — better radiative cooling than bare metal
• Suitable for LED drivers, power ICs, MOSFETs, memory chips, and transistors
• Compatible with thermal adhesive tape or clip mounting

Use Cases

• Cooling power supply ICs and voltage regulators in DIY electronics builds
• LED driver thermal management in high-brightness lighting projects
• Passive cooling for MOSFETs and transistors in motor driver circuits
• Memory and controller chip cooling in embedded and SBC projects

Works Well With

• 50mm Axial Cooling Fan 5V/12V/24V — add active airflow over the heatsink in enclosures with limited convection
• 9×9×12mm Heatsink for A4988/DRV8825 — a compact option for smaller IC packages like A4988 stepper drivers

Project Ideas & Tutorials

• Motor Heat Sink: When and How to Add Cooling — Zbotic — explains when heatsinks are needed and how to attach them to motor drivers and ICs
• DRV8825 Stepper Motor Driver Arduino Tutorial — Last Minute Engineers — a thorough guide to wiring and cooling the DRV8825/A4988 on RAMPS and Arduino boards

Package Contents

• 1 × 40×40×11mm black anodised aluminium heatsink

Free UK delivery

Royal Mail 48 tracked · dispatched same day on orders before 14:00.

Express — £15.98

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