Aluminum Heatsink 4x4cm

4x4cm Aluminum Heatsink 40x40x11mm Black Anodized 143 Pin Fin Passive Radiator

Heat Spreader Peltier Stepper Motor NEMA17 Driver Chip IC Mosfet Regulator Led Amplifier Graphics Card Chipset RAM 3D Printer

     This product is a black anodized aluminum passive heatsink with a 40mm x 40mm base and a height of 11mm. On top of the flat base there are 143 pin fins cut in two directions. The pin fin structure lets air pass between the fins from every direction; the heatsink can be used in horizontal or vertical position, with or without a fan.

     The heatsink is placed on heating parts or surfaces such as stepper motor, stepper motor driver, mosfet, regulator, power LED, amplifier IC, graphics card chipset, RAM and the cold side of a peltier cell with thermal adhesive tape, thermal glue or thermal paste and clamping. Thanks to its 11mm low profile it takes little space in narrow boxes; since the 40x40mm base size is the same as 40mm fans, cooling can be increased by placing a 40mm fan on it. Thermal tape and fan are not included in the package.

Key features:

     Pin fin structure: 143 pin fins cut in two directions are open to air flow from every direction compared to straight fin heatsinks; mounting direction does not matter.

     Low profile: With 11mm height it takes little space inside a box, on a board and behind a stepper motor.

     Base fits a 40mm fan: The 40x40mm base matches the seating surface of a 40mm fan; cooling increases with a fan.

     Black anodized surface: The aluminum body is black anodized; the surface is protected against oxidation and helps heat emission.

     Light body: With a weight of about 15gr it puts no load on the part and the board when mounted with adhesive.

Features:

• Product type: passive aluminum heatsink (radiator), pin fin
• Fin structure: pin fins cut in two directions
• Number of fins: 143
• Base: flat surface that sits fully on the heat source; no screw or fan mounting holes
• Surface: black anodized
• Cooling type: passive with natural air flow; a 40mm fan can be added on top
• Suitable parts: stepper motor, stepper motor driver, mosfet, regulator, power LED, amplifier IC, chipset, RAM, peltier cold side
• Place of use: narrow boxes and on-board mounting thanks to the low profile
• Thermal interface: thermal paste or a thermal pad must be placed between the part and the base (not included)
• Mounting: with thermal adhesive tape, thermal glue or thermal paste and clamping
• Mounting direction: horizontal or vertical; the pin fins are open to air flow from every direction
• Base size: 40mm x 40mm (4x4cm)
• Height: 11mm
• Material: aluminum
• Color: black
• Dimensions: 40mm x 40mm x 11mm
• Weight: about 15gr

Usage information:

• Clean the surface of the part to be cooled and the base of the heatsink with alcohol; a dust free and grease free surface increases heat transfer.
• For adhesive mounting use double sided thermal tape or thermal glue; for clamped mounting apply a thin layer of thermal paste between them.
• Place the heatsink so that air can pass between the fins; in a closed box use ventilation holes or a 40mm fan.

Application areas:

•  Cold side of a peltier cell (inside of a cooler box)
•  Stepper motor (NEMA17) body cooling
•  Stepper motor drivers and motor driver boards
•  Mosfet, regulator and power supply circuits
•  Power LEDs and LED drivers
•  Amplifier ICs and audio circuits
•  Graphics card chipsets and RAM chips
•  3D printer electronics
•  Heating ICs and small boards

Precautions:

•  Thermal tape, thermal paste and fan are not included in the package; if the heatsink is placed on the part without thermal material, heat transfer is poor.
•  The cooling power of a passive heatsink depends on ambient air and air flow; add a fan for high power parts and check the part temperature by measuring it.
•  It is not enough on its own for the hot side of a peltier cell: a peltier running at full power (e.g. TEC1-12706, 12V 6A) gives off about 100W of heat on its hot side; use a much larger heatsink with a fan on the hot side.
•  The heatsink has no screw or fan mounting holes; a fan is attached with adhesive or a clamp.
•  Aluminum conducts electricity; do not let it touch exposed leads, solder joints or conductive surfaces on the board.
•  The heatsink gets hot during operation; wait for it to cool down before touching it.

Package contents:

•  1 Piece 4x4cm Aluminum Heatsink 40x40x11mm
•  Note: Thermal tape, thermal paste and fan are not included in the package.