What is a Fansink?

fansink thermalA Fansink is classed as an Active heatsink as it uses a fan that is attached to a standard Heatsink  to create its own cooling. This active heatsink is a great option when working in a test environment, or for demo boards as they provide around 200 LFM of airflow. Fansinks have many names  such as Fan Heatsinks or HSF, which is short for heat sink and fan. A FanSink provides significant cooling benefits over system level fans for a single component as the dedicated fan increases localized airflow while improving thermal efficiency, and thermal performance over a passive heatsink solution. By matching the fan performance with the correct style heatsink base, and thermal analysis, fan heatsinks can be designed to meet specific application requirements. This type of Active heatsink requires a power source typically from the board at either 5 or 12 volts.

Active Heatsink options

Radian has a wide range of active heatsink solutions. Most are using the fan heatsink style where either a BGA heatsink or platefin with pushpins has a fan attached. For more exotic thermal solutions we have coupled a thermoelectric cooler (TEC) to a heatsink. For more information please contact us.
The following lists are standard parts that we usually have available to ship within a few days.

BGA Fansink

FansinkRadian’s aluminum  BGA heatsinks with fans are high efficiency heatsink cooling products designed for BGA chipsets and other OEM applications. These devices mount with EZ Snap™ mounting clips to provide optimum cooling for various package sizes, and are easy to install and require no special board modifications or complex assemblies. The heatsinks are constructed of aluminum for optimum heat transfer and are designed specifically for BGAs and other surface mount packages then finished with black anodize plating. Our standard Fansinks are mounted with screws the top, but for environments with high frequency vibration custom solutions are available that include attaching to the base of the heatsink using countersunk screws and lock-nuts.

Radian Part NumberTypeVoltageStyleLength (mm)Width (mm)Height (mm)Theta SAStore
FI27BGA12VFansink2727162.1View product
FJ27BGA5VFansink2727162.1View product
FA35BGA12VFansink353522.71.7View product
FB35BGA5VFansink353519.61.9View product
FA40BGA12VFansink404024.31.3View product
FB40BGA5VFansink404023.31.3View product
FI42.5BGA12VFansink42.542.524.21.3View product
FJ42.5BGA5VFansink42.542.523.21.3View product
FA45BGA12VFansink454523.31.2View product
FB45BGA5VFansink454524.31.2View product
FA47.5BGA12VFansink47.547.524.31.2View product

Fansink with Pushpins

Fansink with pushpinsRadian Thermal Products also offer a large variety of custom Fan sinks in addition to our standard line. These Custom Fansinks can be mounted using Screws or Pushpins. We also take care when selecting a fan to meet a customers performance, and budget requirements when considering the type of bearings.

Radian Part NumberTypeVoltageStyleLength (mm)Width (mm)Height (mm)Theta SAStore
FE1567Pushpin12VFansink36.857.913.82.3View product
FE1568Pushpin12VFansink36.857.920.21.5View product
FE1569Pushpin12VFansink36.857.925.81.3View product
FE1570Pushpin12VFansink36.857.929.361.1View product
FF1567Pushpin5VFansink36.857.9192.3View product
FF1568Pushpin5VFansink36.857.924.61.5View product
FF1569Pushpin5VFansink36.857.925.81.3View product
FF1570Pushpin5VFansink36.857.929.71.1View product
FE1575Pushpin12VFansink57.960.916.81.9View product
FE1576Pushpin12VFansink57.960.921.91.8View product
FE1577Pushpin12VFansink57.960.928.31View product
FE1578Pushpin12VFansink57.960.934.80.9View product
FF1575Pushpin5VFansink57.960.916.51.9View product
FF1576Pushpin5VFansink57.960.922.11.8View product
FF1577Pushpin5VFansink57.960.928.41View product
FF1578Pushpin5VFansink57.960.933.50.9View product

5V or 12V Fans
Standard BGA sizes
Custom Fansinks

"We hope you will become fans!"