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Six small blue aluminium heatsinks, each about five by thirty by forty millimetres, with adhesive backing

Unique-Bargains

Unique-Bargains 5x30x40mm Blue Aluminum Heatsink 6Pcs

SKU CH-JQ6C-JC5GR

Six blue aluminum heatsinks measuring 30 by 40 millimetres with pre-applied thermal adhesive for stepper-motor or chip cooling

  • Low-profile cooling with 5 mm thickness
  • Thermal adhesive pads included for secure mounting
  • Blue anodised aluminium alloy dissipates heat efficiently
  • Six heatsinks cover multiple stepper motors or chips
  • Compact 30 x 40 mm footprint fits tight spaces

5 x 30 x 40 mm blue heatsink set

This pack contains six aluminum heatsinks finished in blue. Each piece measures .2 by 30 by 40 millimetres and is intended for memory, chipset or stepper-motor cooling in 3D printers and general electronics. The adhesive-backed design suits hobbyists and builders who need small-scale thermal management without active fans.

Peel-and-stick installation

Every heatsink ships with a pre-applied thermal-conductivity adhesive pad. Mounting requires only cleaning the target surface and pressing the heatsink into place, a process that takes seconds. The main risk is poor adhesion on uneven or contaminated surfaces, which can reduce heat transfer or cause the part to detach over time.

Passive dissipation under continuous load

The aluminum alloy spreads heat away from the component through its 30 by 40 mm footprint. Because the cooling is entirely passive, temperatures will stabilise at a level dictated by ambient airflow and the component’s power draw; sustained heavy loads may exceed the heatsink’s capacity to maintain low temperatures.

How it compares

Measured against everything we stock in RAM & Chipset Heatsinks, at today’s prices. Recalculated every night.

Price $6.99
Cheaper than about 70% of the 87 comparable items (median $8.99).

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Specifications

Product
Brand nameUnique Bargains

Questions about this item

How can I verify the heatsink is cooling my stepper motor effectively after installation?

Monitor the motor body temperature during a long print; the aluminum alloy heatsink with its pre-applied thermal adhesive should keep the motor noticeably cooler than without it.

What exactly is included in the package and is any extra thermal material required?

The box contains six blue aluminum-alloy heatsinks measuring 5 x 30 x 40 mm, each with thermal adhesive already attached; no additional pads or paste are needed.

Which of the listed dimensions should I match to my component for the best fit?

Choose the 5 mm thick, 30 mm wide by 40 mm high version — the only size offered — and ensure the component surface is at least 30 x 40 mm for full contact.

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