Announcement of Heat Sinks with Attachment Holes for shoulder screws
Issue Date: 2009/01/23

Alpha has expanded its wide range of off-the-shelf products to meet with our customer's requirements.

Alpha has released new standard series heat sinks, featuring shoulder screw for mechanical attachment.

The heat sinks will come with two 4.50mm diameter holes, making them compatible with our standard shoulder screws and springs. The screws and springs are standard catalog items, allowing each heat sink to be customized for any PCB thickness and chip size. Screw and spring combinations can be selected from our online catalog, making it simple to meet with any height restriction and attachment force requirement. A locking patch is pre-applied to the screw thread to prevent the screw from loosening after installation.

This product release includes two different fin patterns, UB and LPD. Each series includes two different hole orientations, relative to airflow direction. The UB and LPD based series includes two different base sizes and three different heat sink heights.

Standard hole locations are specified, allowing engineers/designers to do board layout at an early stage.

SeriesBase SizeHeightDescription
LPDM__S60,7015,20,25Low pressure drop heat sink
LPDH__S60,7015,20,25Low pressure drop heat sink(Opposite airflow direction)
UBM__S60,7015,20,250.55mm elliptical fins, high performance heat sink
UBH__S60,7015,20,250.55mm elliptical fins, high performance heat sink
(Opposite airflow direction)

If the hole locations need to be changed or any customization is required, please contact our sales team.

For additional details, please visit the heat sink with attachment holes page.

© 2009 Alpha Novatech, Inc.