New Ohmite Heatsinks Designed for Higher Power Densities

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Ohmite's new R2 Heatsinks achieve better thermal performance

By adding a cam-clip and eliminating the need for a screw hole, the rear side of Ohmite’s new R Series heatsink benefits from being fully populated with extra fins which provide a larger cooling surface area and a significant improvement in thermal performance while using less space.

Compared to a conventional heatsink, additional fins have been extruded by removing the necessity for a 12mm access channel to the screw hole. In doing this, Ohmite claims to have achieved better thermal performance for the 38mm tall R2 heatsink compared to a similar heatsink without the cam-clip, in a package width that requires less space - 35.2mm instead of 42mm.

The labor-saving attachment mechanism is capable of attaching either a TO-220 or a TO-247 component, provides the same amount of force after repeated use, and is offered in both degreased and black anodized finishes. Product details can be viewed at

Pricing for R2 heatsinks ranges from $1.84 to $1.90, depending on finish, in 1000 piece quantities.

In business since 1925, Ohmite Manufacturing is a global supplier of fixed and variable power resistors as well as heatsink solutions and electronic hardware. For more information on Ohmite products and local distributors go to and follow Ohmite on Twitter and Facebook.


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Kristin Nugent
McNeil, Gray & Rice
617-367-0100 148
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