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PDFs and Datasheets C Series Heatsink Datasheet

C Series Datasheet

TO-126, TO-247, TO-220 and TO-264 Package Heatsinks  

800 & 1000 series product image

 

Ohmite introduces the C series (Pat. Pending). This series offers high performance, low cost and a compact heat sink with an integrated camming clip system for TO-126, TO-220, TO-247 and TO-264 devices. This powerful heat sink provides tool and fixture free assembly operation, largest surface areas and smallest space occupation. It is the ideal type of heat sink for high power density and small size (1U or 2U) electronic packaging with forced convection
cooling.

 

Features

  • Minimum assembly cost and labor Spring Clips make the mounting holes, fasteners, tools and fixtures obsolete in assembly operations & reduce costs.
  • Maximum Thermal Transfer Maximum surface area per unit volume, efficient cooling fins & consistent mounting force reduces thermal resistance.
  • Maximum Repeatability Constant spring force over repeated assembly/disassembly.
  • Maximum Reliability Resilient spring action locks electronic component in place. Fewer parts in assembly and no fasteners and washers required. Prevent short circuit by eliminating metal particles generated from hardware or thread tapping
  • Design Flexibility Maximum flexibility for dynamic device locations and power upgrading. “Configureto-Fit” gives designers total freedom to configure heat sink needed to fit into a multitude design environments

Series Specifications

Surface Area(in2/mm2):

11 / 7,312

Weight(oz/g):

0.5 / 15

Length “L”(mm):

25

Surface Area(in2/mm2):

23 / 14,858

Weight(oz/g):

1.1 / 31

Length “L”(mm):

50

Surface Area(in2/mm2):

34 / 21,655

Weight(oz/g):

1.6 / 45

Length “L”(mm):

75

Surface Area(in2/mm2):

13 / 8,774

Weight(oz/g):

0.7 / 19

Length “L”(mm):

30

Surface Area(in2/mm2):

25 / 16,963

Weight(oz/g):

1.35 / 37

Length “L”(mm):

58

Surface Area(in2/mm2):

37 / 24,861

Weight(oz/g):

1.97 / 54

Length “L”(mm):

85

Surface Area(in2/mm2):

11 / 7,312

Weight(oz/g):

0.5 / 15

Length “L”(mm):

25

Surface Area(in2/mm2):

23 / 14,858

Weight(oz/g):

1.1 / 31

Length “L”(mm):

50

Surface Area(in2/mm2):

34 / 21,655

Weight(oz/g):

1.6 / 45

Length “L”(mm):

75

Surface Area(in2/mm2):

10.2 / 6,559

Weight(oz/g):

0.45 / 12.7

Length “L”(mm):

25

Surface Area(in2/mm2):

16.3 / 10,495

Weight(oz/g):

0.72 / 20.3

Length “L”(mm):

40

Surface Area(in2/mm2):

20.4 / 13,119

Weight(oz/g):

0.90 / 25.4

Length “L”(mm):

50

Surface Area(in2/mm2):

30.6 / 21,655

Weight(oz/g):

1.35 / 38.1

Length “L”(mm):

75

Characteristics

Aluminum Alloy 6063-T5 or Equivalent with either degreased or black anod-ized finish.

Music Wire, Per ASTM A228 with bright nickel plating

Cold-rolled Steel, Per ASTM A-366 with pure tin over copper strike. RoHS compliant.

for improvement, use thermal joint compound, 0.005 Grafoil (TGon 800 by Laird), or phase change material (Hi-Flow by Bergquist)

(Optional) Sil-Pad 900-S, K6 800-S and K10 by Bergquist

 

 

Heat Dissipation

Heat dissipation is the total for ALL DEVICES attached to heatsink.

Sink C Graph 1
Sink C Graph 2

Dimensions

 

TO-126 & TO-220 

Sink C Dimensions 1

 

TO-247 

Sink C Dimensions 2

 

TO-264 

Sink C Dimensions 3

 

with TO-126 

Sink C Dimensions 4

 

with TO-247 or TO-264

Sink C Dimensions 5

 

Land Pattern

X and Y dimensions at user discretion 

 

Sink C Land Pattern

Ordering Information

Sink C Order Info

 

Standard part numbers 

Black Anodized:

C247-025-1AE

No. of Clips:

1

Black Anodized:

C247-050-2AE

No. of Clips:

2

Black Anodized:

C247-075-3AE

No. of Clips:

3

Black Anodized:

C264-030-1AE

No. of Clips:

1

Black Anodized:

C264-058-2AE

No. of Clips:

2

Black Anodized:

C264-085-3AE

No. of Clips:

3

Black Anodized:

C220-025-1AE

No. of Clips:

1

Black Anodized:

C220-050-2AE

No. of Clips:

2

Black Anodized:

C220-075-3AE

No. of Clips:

3

Black Anodized:

C126-025-1AE

No. of Clips:

1

Packaging: Bulk 

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