Heat Sinks, Heat Skink Computers & CPU Fans | RS
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    Heatsinks

    What are Heat Sink Fans for Computers, PCs and PCUs?

    Heat sinks prevent devices from overheating and are particularly important in protecting electronics such as CPUs. Components subject to too much heat can become irreparably damaged. In the most severe cases overheating components can result in fires, explosions and injury.

    Many electrical applications require airflow, therefore The heat sink is designed with an internal thermal conductor that carries heat away into fins that provide a large surface area for the heat to dissipate throughout the rest of the component, subsequently cooling both the heat sink and the electrical appliance.

    How do Heat Sinks work?

    A heat sink transfers thermal energy from a higher-temperature device to a lower-temperature fluid (usually air), acting as a heat reservoir that can absorb an amount of heat without too much variation in it's core temperature. For this reason they are commonly used as CPU coolers in personal computer systems.

    Heat Sinks achieve the dispersal of heat by increasing the device's working surface area and the quantity of low-temperature fluid that moves across its enlarged surface area.

    The basic flow of Heat sinks is as follows:

    • The source generates heat as the waste product of energy creation is usually heat.
    • The heat dissipates from the source.
    • The heat is captured and distributed throughout the heat sink.
    • Heat is then from the heat sink

    What are heat sinks made of?

    The materials for heat sinks need to have high heat capacity and thermal conductivity so as to heat energy without becoming too warm itself. The most common heat sink materials are copper or aluminium.

    Copper is an excellent thermal conductor, helping to draw heat away from the device that you are trying to cool.

    Although aluminium doesn't conduct heat as well as copper, it is less expensive and lighter than copper. The heat will normally rise through a number of metal fins which are used because they provide a greater surface area for the heat to spread across and dissipate.

    Applications for Heat Sinks include:

    Heat sinks can be used to cool a large number of devices such as:

    • Personal Computers
    • Forced Air Heating
    • Solar thermal Water Systems
    • Electronic Systems
    • Gas Water Heaters

    They possess some key features including

    • Extremely long life
    • High performance
    • Durable
    • Convenient
    • Safe

    Browse the broad range of Heat Sinks RS have to offer and order today for next day delivery.

    656 Products showing for Heatsinks

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    35mm
    16mm
    27mm
    35 x 16 x 27mm
    9°C/W
    Clip
    -
    Black
    -
    -
    -
    -
    Universal Rectangular Alu
    23.9mm
    40mm
    10mm
    23.9 x 40 x 10mm
    10K/W
    Adhesive Foil
    -
    Black
    -
    Semiconductor Devices
    Aluminium
    BGA
    HK$17.47
    Each (In a Pack of 10)
    TO-220
    20mm
    35mm
    20mm
    20 x 35 x 20mm
    17.9°C/W
    -
    -
    -
    -
    -
    Aluminium
    TO-220
    LED Lighting
    200mm
    35mm
    35mm
    200 x 35 x 35mm
    1.224°C/W
    Vertical
    -
    -
    -
    -
    -
    -
    Universal Rectangular Alu
    23mm
    23mm
    18mm
    23 x 23 x 18mm
    14.7K/W
    Adhesive Foil
    -
    Black
    -
    Semiconductor Devices
    Aluminium
    BGA
    Universal Rectangular Alu
    150mm
    125mm
    50mm
    150 x 125 x 50mm
    0.5K/W
    -
    -
    Black
    -
    -
    Aluminium
    -
    -
    38mm
    35mm
    25mm
    38 x 35 x 25mm
    7°C/W
    PCB Mount
    -
    Black
    -
    -
    -
    -
    Universal Rectangular Alu
    100mm
    120mm
    37mm
    100 x 120 x 37mm
    1K/W
    -
    -
    Black
    -
    -
    Aluminium
    -
    Universal Square Alu
    150mm
    150mm
    25mm
    150 x 150 x 25mm
    0.39°C/W
    PCB Mount
    -
    -
    100
    High Power Semiconductor Device, Optoelectronic Device
    Aluminium
    -
    Universal Square Alu
    200mm
    200mm
    15mm
    200 x 200 x 15mm
    0.23°C/W
    PCB Mount
    -
    -
    100
    High Power Semiconductor Device, Optoelectronic Device
    Aluminium
    -
    -
    50mm
    50mm
    28mm
    50 x 50 x 28mm
    5°C/W
    Screw
    -
    Black
    -
    -
    -
    TO-220
    Universal Rectangular Alu
    40mm
    40mm
    18mm
    40 x 40 x 18mm
    8.2K/W
    Adhesive Foil
    -
    Black
    -
    -
    Aluminium
    BGA
    Universal Rectangular Alu
    100mm
    250mm
    30mm
    100 x 250 x 30mm
    0.24°C/W
    PCB Mount
    -
    -
    100
    High Power Semiconductor Device, Optoelectronic Device
    Aluminium
    -
    Universal Rectangular Alu
    75mm
    88mm
    35mm
    75 x 88 x 35mm
    1.65K/W
    Screw Mount
    -
    Black
    -
    -
    Aluminium
    -
    Fischer Elektronik
    -
    50mm
    97mm
    25mm
    50 x 97 x 25mm
    2.4K/W
    -
    -
    Black
    -
    -
    -
    -
    Universal Rectangular Alu
    75mm
    88mm
    25mm
    75 x 88 x 25mm
    1.9°C/W
    -
    -
    Black
    -
    -
    Aluminium
    -
    Universal Rectangular Alu
    100mm
    88mm
    35mm
    100 x 88 x 35mm
    1.4K/W
    Screw Mount
    -
    Black
    -
    -
    Aluminium
    -
    Universal Rectangular Alu
    150mm
    215mm
    77mm
    150 x 215 x 77mm
    0.1°C/W
    PCB Mount
    -
    -
    100
    High Power Semiconductor Device, Optoelectronic Device
    Aluminium
    -
    Universal Rectangular Alu
    100mm
    66mm
    40mm
    100 x 66 x 40mm
    0.69°C/W
    PCB Mount
    -
    -
    100
    High Power Semiconductor Device, Optoelectronic Device
    Aluminium
    -
    Universal Square Alu
    100mm
    100mm
    15mm
    100 x 100 x 15mm
    0.83°C/W
    PCB Mount
    -
    -
    100
    High Power Semiconductor Device, Optoelectronic Device
    Aluminium
    -
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