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Stepper driver chips such as the A4988 and DRV8825 are known for running hot under sustained current, especially on 3D printers and CNC machines where several axes are driving motors continuously, and this pack of 5 aluminium heatsinks is a simple, low-cost way to help those chips shed heat and avoid thermal shutdown mid-print. Each heatsink uses thermally conductive adhesive tape on its underside, so fitting one is as easy as peeling off the protective liner and pressing it onto the top of the driver chip.
Aluminium is used for its combination of good thermal conductivity and light weight, meaning the heatsink helps cooling without adding meaningful mechanical load or stress to the small surface-mount chip it sits on.
Each heatsink measures 9mm by 9mm by 5mm and the whole 5-piece pack weighs only 4g in total, keeping the components essentially weightless from the board's perspective. Beyond A4988 and DRV8825 stepper driver boards, the listing notes these heatsinks are also compatible with chips on Raspberry Pi boards and Beaglebone Advanced Controller boards, where a small chip could benefit from a bit of extra passive cooling.
Because installation relies purely on adhesive rather than a clip or screw mount, it works on chips of a similar small footprint regardless of the exact board layout, as long as there's flat clearance above the chip for the heatsink's height.
3D printer and CNC builders running multiple stepper drivers continuously, and anyone whose printer has ever suffered from a driver overheating mid-job, will find this an inexpensive, quick way to add some thermal margin to their existing controller board.
5.
By peeling off a protective liner and pressing the adhesive backing onto the chip.
Aluminium.
A4988 and DRV8825 stepper motor drivers, as well as chips on Raspberry Pi and BeagleBone Advanced Controller boards.
4g for all 5 pieces.
| Brand | Generic |
|---|---|
| Material | Aluminum |
| Selling unit | PCS |
