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.

    690 Products showing for Heatsinks

    RS PRO
    Universal Rectangular Alu
    125mm
    200mm
    25mm
    125 x 200 x 25mm
    0.9K/W
    -
    -
    Black
    -
    -
    Aluminium
    -
    RS PRO
    Universal Rectangular Alu
    150mm
    66mm
    40mm
    150 x 66 x 40mm
    0.5°C/W
    PCB Mount
    -
    -
    100
    High Power Semiconductor Device, Optoelectronic Device
    Aluminium
    -
    RS PRO
    Universal Rectangular Alu
    100mm
    200mm
    15mm
    100 x 200 x 15mm
    0.4°C/W
    PCB Mount
    -
    -
    100
    High Power Semiconductor Device, Optoelectronic Device
    Aluminium
    -
    RS PRO
    Universal Rectangular Alu
    150mm
    100mm
    15mm
    150 x 100 x 15mm
    0.6°C/W
    PCB Mount
    -
    -
    -
    High Power Semiconductor Device, Optoelectronic Device
    Aluminium
    -
    RS PRO
    Universal Square Alu
    300mm
    300mm
    40mm
    300 x 300 x 40mm
    0.29K/W
    -
    -
    Black
    -
    -
    Aluminium
    -
    RS PRO
    Universal Rectangular Alu
    200mm
    250mm
    30mm
    200 x 250 x 30mm
    0.14°C/W
    PCB Mount
    -
    -
    100
    High Power Semiconductor Device, Optoelectronic Device
    Aluminium
    -
    RS PRO
    Universal Rectangular Alu
    100mm
    120mm
    37mm
    100 x 120 x 37mm
    1K/W
    -
    -
    Black
    -
    -
    Aluminium
    -
    RS PRO
    LED Lighting
    150mm
    35mm
    35mm
    150 x 35 x 35mm
    1.224°C/W
    Vertical
    -
    -
    -
    -
    -
    -
    RS PRO
    Universal Rectangular Alu
    14mm
    14mm
    10mm
    14 x 14 x 10mm
    26.5K/W
    Adhesive Foil
    -
    Black
    -
    Semiconductor Devices
    Aluminium
    BGA
    RS PRO
    Universal Rectangular Alu
    200mm
    160mm
    40mm
    200 x 160 x 40mm
    0.55K/W
    -
    -
    Black
    -
    -
    Aluminium
    -
    RS PRO
    Universal Rectangular Alu
    150mm
    200mm
    15mm
    150 x 200 x 15mm
    0.29°C/W
    PCB Mount
    -
    -
    100
    High Power Semiconductor Device, Optoelectronic Device
    Aluminium
    -
    RS PRO
    Universal Rectangular Alu
    150mm
    160mm
    40mm
    150 x 160 x 40mm
    0.65K/W
    -
    -
    Black
    -
    -
    Aluminium
    -
    RS PRO
    Universal Rectangular Alu
    300mm
    119mm
    65mm
    300 x 119 x 65mm
    0.48°C/W
    -
    -
    Black
    -
    -
    Aluminium
    -
    RS PRO
    -
    50mm
    50mm
    28mm
    50 x 50 x 28mm
    5°C/W
    Screw
    -
    Black
    -
    -
    -
    TO-220
    RS PRO
    Universal Rectangular Alu
    250mm
    300mm
    40mm
    250 x 300 x 40mm
    0.3K/W
    -
    -
    Black
    -
    -
    Aluminium
    -
    RS PRO
    Universal Rectangular Alu
    150mm
    240mm
    46mm
    150 x 240 x 46mm
    0.4K/W
    -
    -
    Black
    -
    -
    Aluminium
    -
    RS PRO
    Universal Rectangular Alu
    100mm
    150mm
    25mm
    100 x 150 x 25mm
    0.54°C/W
    PCB Mount
    -
    -
    100
    High Power Semiconductor Device, Optoelectronic Device
    Aluminium
    -
    RS PRO
    Universal Rectangular Alu
    250mm
    240mm
    46mm
    250 x 240 x 46mm
    0.32K/W
    -
    -
    Black
    -
    -
    Aluminium
    -
    RS PRO
    -
    49mm
    49mm
    20mm
    49 x 49 x 20mm
    7K/W
    Adhesive Foil
    -
    Black
    -
    -
    -
    BGA
    RS PRO
    Universal Rectangular Alu
    23mm
    23mm
    18mm
    23 x 23 x 18mm
    14.7K/W
    Adhesive Foil
    -
    Black
    -
    Semiconductor Devices
    Aluminium
    BGA
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