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

    Fischer Elektronik
    Universal Square Alu
    10mm
    10mm
    12.5mm
    10 x 10 x 12.5mm
    26.3K/W
    Adhesive Foil, Conductive Foil
    -
    -
    -
    -
    Aluminium
    -
    Fischer Elektronik
    Universal Round Alu
    -
    -
    20mm
    54 (Dia.) x 20mm
    9.78K/W
    Adhesive Foil, Conductive Foil
    54mm
    Black
    -
    -
    -
    LED
    AAVID THERMALLOY
    -
    50mm
    34mm
    75mm
    50 x 34 x 75mm
    3.12K/W
    Clip
    -
    Black
    -
    -
    -
    -
    Fischer Elektronik
    -
    37.5mm
    29mm
    25mm
    37.5 x 29 x 25mm
    11K/W
    -
    -
    Black
    -
    -
    -
    -
    Fischer Elektronik
    Universal Rectangular Alu
    50mm
    150mm
    27mm
    50 x 150 x 27mm
    1.7K/W
    -
    -
    Black
    -
    -
    Aluminium
    -
    Fischer Elektronik
    -
    75mm
    115mm
    63mm
    75 x 115 x 63mm
    1.6K/W
    Screw
    -
    Black
    -
    -
    -
    -
    Fischer Elektronik
    Universal Round Alu
    -
    -
    14mm
    23.5 (Dia.) x 14mm
    19.16K/W
    Adhesive Foil, Conductive Foil
    23.5mm
    Black
    -
    -
    -
    LED
    Fischer Elektronik
    -
    25mm
    25.4mm
    8.3mm
    25 x 25.4 x 8.3mm
    18K/W
    Clip, Solder
    -
    Black
    -
    -
    -
    TO-218
    AAVID THERMALLOY
    -
    19.5mm
    12.7mm
    13mm
    19.5 x 12.7 x 13mm
    20.3°C/W
    Solder
    -
    Black
    -
    -
    -
    TO-220, TO-262
    Intelligent LED Solutions
    Dragon 1, Duris 1, Duris 4, Oslon 1, Oslon 4, Stanley 1, Stanley 4
    -
    -
    60mm
    50 (Dia.) x 60mm
    -
    Screw
    50mm
    Black
    -
    -
    -
    LED
    Arcol Ohmite
    TO263
    12.07mm
    26.16mm
    11.68mm
    12 x 26 x 11.68mm
    -
    -
    -
    -
    -
    -
    -
    -
    Arcol Ohmite
    TO-252, TO-263 and TO-268
    12.7mm
    40.13mm
    11.68mm
    12.7 x 40.13 x 11.68mm
    -
    -
    -
    -
    -
    -
    -
    -
    Fischer Elektronik
    -
    24.5mm
    24mm
    7mm
    24.5 x 24 x 7mm
    21K/W
    Screw
    -
    Black
    -
    -
    -
    TO-220
    Fischer Elektronik
    Universal Rectangular Alu
    100mm
    200mm
    25mm
    100 x 200 x 25mm
    0.95K/W
    -
    -
    Black
    -
    -
    Aluminium
    -
    Fischer Elektronik
    Universal Square Alu
    32.7mm
    32.7mm
    20mm
    32.7 x 32.7 x 20mm
    3.7K/W
    Adhesive Foil, Conductive Foil
    -
    -
    -
    -
    Aluminium
    -
    Allen Bradley
    used with 700-SH
    220mm
    100mm
    55mm
    220 x 100 x 55mm
    0.8°C/W
    Panel Mount
    -
    -
    -
    -
    -
    -
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