When used in pairs these heatsinks have mounting holes to accomodate a standard 40mm x 40mm fan.
Heatsinks and clips can be purchased individually, or designers can opt for Ohmite to assemble a full system with customer-specified components which include custom lengths to mount even more devices.
Patented Camming Clips (sold separately) easily secure devices in place without the need for holes or screws allowing for easy repairs, upgrades or component replacement in the future.
C40 heatsinks are used in conjunction with Ohmite TO-247 and TO-264 power resistors or similarly packaged passive and active components.