Extruded Heat Sinks for
High-Power Semiconductors
　

Available in all popular configurations, or customized to meet your specific needs.

In addition to manufacturing an extensive line of stamped metal heat sinks, CTS also supplies many different extruded heat sinks for applications where cost is a factor or extremely high power levels are encountered. Application data on the popular extruded heat sink sizes and configurations, commonly used in thermal packaging, appears in this section.

To provide special assistance in meeting you thermal packaging requirements, CTS will:

• Cut to length;
• Drill, punch, tap holes as required;
• Provide finishes to your requirements, such as black anodize or chemical film;
• Do special machining on any of our configurations to your specifications;
• Functional and environmental testing;
• Predictive thermal analysis;

Provide a drawing and our Application Engineering department will be pleased to provide a quotation.

To assist you in selecting the proper extrusion to solve your thermal problems, the following information is provided for each configuration weight (WT) in lb./ft., heat-dissipating surface (H.D.S.) area in sq. in./in., and thermal resistance (T.R.) figures for a 3-inch long, black anodized section.  If you do not find the exact configuration you need, contact your local CTS technical sales representative or our factory.  Our technical staff is ready to assist you with your thermal packaging problem.

We maintain a large inventory of extruded heat sink stock.  Our prices are competitive.  We welcome the chance to be of service to you.

E157

W.T. 0.32 lbs./ft.(.48 kg./m.)
H.D.S. 6.1 sq. in./in.(15.4 sq. cm./cm.)
T.R.   9.1 °C/W

E236

W.T. 1.5 lbs./ft.(2.28 kg./m.)
H.D.S. 26.2 sq. in./in.(66.6 sq. cm./cm.)
T.R. 2.0 °C/W

E280

W.T. 6.20 lbs./ft.(9.22 kg./m.)
H.D.S.  77.9 sq. in./in.(197.9 sq. cm./cm.)
T.R. 0.9 °C/W
　

E288

W.T. 5.5 lbs./ft.(8.23 kg./m.)
H.D.S. 65.7 sq. in./in.(166.9 sq. cm./cm.)
T.R. 1.0 °C/W

E360

W.T. 2.7 lbs./ft.(4.08 kg./m.)
H.D.S. 43.2 sq. in./in.(109.7 sq. cm./cm.)
T.R. 1.4 °C/W
　

E470

W.T. 1.6 lbs./ft.(2.4 kg./m.)
H.D.S.  29.6 sq. in./in.(75.2 sq. cm./cm.)
T.R. 1.8 °C/W

E915

W.T.1.3 lbs./ft.(1.86 kg./m.)
H.D.S. 25.0 sq. in./in.(63.5 sq. cm./cm.)
T.R. 2.1 °C/W

E993

W.T.3.2 lbs./ft. (3.78 kg./m.)
H.D.S.41.4 sq. in./in.(105.1 sq. cm./cm.)
T.R. 1.2 °C/W