Bonded Fin & Brazed Fin Heat Sink Assemblies

Increased Surface Area Solutions for High Power Applications

Bonded Fin & Brazed Fin Heat Sink Assemblies

产品详细信息 主要行业 相关产品

Bonded fin heat sinks are an assembly of a grooved base with individual fins bonded into the grooves. This type of heat sink fabrication allows for higher fin densities and fin aspect ratios than what is manufacturable with extrusion methodologies, greatly improving thermal performance as compared to extruded heat sinks due to increased surface area.

Bonded fin types can be constructed in a few ways. Grooved bases can be extruded, die cast, or machined. Machining can allow for additional features like embedded heat pipes, vapor chambers, or encapsulated graphite heat spreaders. Fins are either punched from coil stock or cut from thin plate stock. The fins are inserted into the base grooves and are joined by epoxying, brazing, or soldering.

The epoxy used for bonding is specially formulated to have high thermal conductivity, however brazing offers greater structural integrity and the best thermal performance. Aavid, Thermal Division of Boyd Corporation employs a variety of brazing techniques including CAB, vacuum, and dip brazing. Aluminum must be nickel plated to be soldered.

借助Aavid广泛多样的标准挤压底座和标准切割铝制翅片组合,我们能够快速设计和制造半定制环氧树脂胶粘翅片解决方案,以及完全定制的采用胶粘或钎焊翅片类型的散热器和系统。


产品详细信息

Bonded & Brazed Fin Heat Sink Product Details:

  • 材料:
    • 不锈钢
    • 铬镍铁合金
  • General Design Guidelines:
    • Fin thickness typically ranges from .010” to .080” (other thicknesses as needed)
    • 根据所需的耐热性,采用钎焊、焊接或热环氧树脂粘合
    • Fins can easily be non-uniform geometry, especially length, with no post machining


Standard Bonded Fin Heat Sinks:

Part Number

Reference Figure

Flanges

Finish

A Dim

B Dim

°C/W

RoHS

采购

476700U00000

1

None

Unfinished

178 mm (7.0 in.)

0.3

Compliant

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476700C00000

1

None

Gold Chromate

178 mm (7.0 in.)

0.3

CompliancePending

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476700L00000

1

None

Clear Chromate

178 mm (7.0 in.)

0.3

CompliancePending

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476900U00000

2

25 mm (1 in.) wide

Unfinished

178 mm (7.0 in.)

64 mm (2.5 in.)

0.3

Compliant

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476900C00000

2

25 mm (1 in.) wide

Gold Chromate

178 mm (7.0 in.)

64 mm (2.5 in.)

0.3

CompliancePending

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476900L00000

2

25 mm (1 in.) wide

Clear Chromate

178 mm (7.0 in.)

64 mm (2.5 in.)

0.3

CompliancePending

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477000U00000

2

25 mm (1 in.) wide

Unfinished

305 mm (12 in.)

127 mm (5.00 in.)

0.22

Compliant

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477000C00000

2

25 mm (1 in.) wide

Gold Chromate

305 mm (12 in.)

127 mm (5.00 in.)

0.22

CompliancePending

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477000L00000

2

25 mm (1 in.) wide

Clear Chromate

305 mm (12 in.)

127 mm (5.00 in.)

0.22

CompliancePending

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"

Part Number

Reference Figure

Finish

A Dim

B Dim

C Dim

°C/W

RoHS

采购

476200U00000

3

Unfinished

178 mm (7.0 in.)

241 mm (9.5 in.)

95 mm (3.75 in.)

0.08

Compliant

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476200C00000

3

Gold Chromate

178 mm (7.0 in.)

241 mm (9.5 in.)

95 mm (3.75 in.)

0.08

CompliancePending

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476200L00000

3

Clear Chromate

178 mm (7.0 in.)

241 mm (9.5 in.)

95 mm (3.75 in.)

0.08

CompliancePending

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476300U00000

3

Unfinished

305 mm (12 in.)

368 mm (14.5 in.)

159 mm (6.25 in.)

0.06

Compliant

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476300C00000

3

Gold Chromate

305 mm (12 in.)

368 mm (14.5 in.)

159 mm (6.25 in.)

0.06

CompliancePending

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476300L00000

3

Clear Chromate

305 mm (12 in.)

368 mm (14.5 in.)

159 mm (6.25 in.)

0.06

CompliancePending

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476400U00000

4

Unfinished

305 mm (12 in.)

371 mm (14.59 in.)

152 mm (6.00 in.)

0.028

Compliant

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476400C00000

4

Gold Chromate

305 mm (12 in.)

371 mm (14.59 in.)

152 mm (6.00 in.)

0.028

CompliancePending

联系我们

476400L00000

4

Clear Chromate

305 mm (12 in.)

371 mm (14.59 in.)

152 mm (6.00 in.)

0.028

CompliancePending

联系我们

476600U00000

4

Unfinished

406 mm (16 in.)

472 mm (18.59 in.)

203 mm (8.00 in.)

0.024

Compliant

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476600C00000

4

Gold Chromate

406 mm (16 in.)

472 mm (18.59 in.)

203 mm (8.00 in.)

0.024

CompliancePending

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476600L00000

4

Clear Chromate

406 mm (16 in.)

472 mm (18.59 in.)

203 mm (8.00 in.)

0.024

CompliancePending

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"

  

  



Custom Bonded Fin Heat Sink Extruded Base Options:

Base Number

Base Profile

Profile Code

Width (mm)

# of Fins

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68520

18

60.2

18

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69920

32

77.98

28

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74915

33

81.28

21

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65800

03

101.6

20

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66565

06

120.65

20

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65740

05

121.41

16

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66780

07

127

34

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72075

34

127

42

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70135

35

127

25

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66280

09

167.89

33

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68180

20

176.02

46

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66580

11

187.2

31

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64125

12

187.2

20

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65805

13

203.2

40

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67650

14

204.72

64

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72310

38

228.6

45

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67350

15

273.81

45

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69320

22

316.23

66

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66520

17

431.8

49

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Bonded Fin Heat Sink Solutions

  • 降低工具成本
  • No Limit on Airflow Length
  • 改善热性能
  • 宽泛的材料和加工选项
  • Customize the base with embedded heat pipes, vapor chambers, or encapsulated graphite to improve heat spreading and increase overall efficiency of the heat sink
  • Increase heat transfer with more airflow from axial fans or high performance Double Width, Double Inlet (DWDI) blowers
  • Add interface materials like thermal grease to reduce thermal interface resistance
  • Duct inlet and outlet airflow with electrically isolating air ducts made with LectroShield Electrical Isolation.