Bonded Fin & Brazed Fin Heat Sink Assemblies

Increased Surface Area Solutions for High Power Applications

Bonded Fin & Brazed Fin Heat Sink Assemblies

Dettagli prodotto Settori chiave Prodotti correlati

I dissipatori di calore ad alette incollate sono composti da una base dotata di scanalature in cui vengono applicate le alette. 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. Le basi scanalate possono essere estruse, pressofuse o lavorate. Machining can allow for additional features like embedded heat pipes, vapor chambers, or encapsulated graphite heat spreaders. È possibile punzonare le alette da una bobina o tagliarle da una piastra sottile. The fins are inserted into the base grooves and are joined by epoxying, brazing, or soldering.

La resina epossidica usata per l'incollaggio è appositamente formulata per garantire un'elevata conducibilità termica, ma la brasatura offre una maggiore integrità strutturale e le migliori prestazioni termiche. 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.

Grazie all'ampio portafoglio Aavid di basi standard estruse e alette in alluminio a taglio standard, siamo in grado di progettare e fabbricare alette semipersonalizzate incollate con resina epossidica, oltre a dissipatori di calore e impianti termici dotati di alette incollate o brasate.


Dettagli del prodotto

Bonded & Brazed Fin Heat Sink Product Details:

  • Materiali:
    • Alluminio
    • Rame
    • Acciaio inossidabile
    • Inconel
  • General Design Guidelines:
    • Fin thickness typically ranges from 0,01” to 0,08” (other thicknesses as needed)
    • Brasatura, saldatura o incollaggio mediante resina epossidica termica in base alla resistenza termica richiesta
    • 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

Acquista

476700U00000

1

None

Unfinished

178 mm (7 in.)

0,3

Compliant

Contattaci

476700C00000

1

None

Gold Chromate

178 mm (7 in.)

0,3

Compliance Pending

Contattaci

476700L00000

1

None

Clear Chromate

178 mm (7 in.)

0,3

Compliance Pending

Contattaci

476900U00000

2

25 mm (1 in.) wide

Unfinished

178 mm (7 in.)

64 mm (2,5 in.)

0,3

Compliant

Contattaci

476900C00000

2

25 mm (1 in.) wide

Gold Chromate

178 mm (7 in.)

64 mm (2,5 in.)

0,3

Compliance Pending

Contattaci

476900L00000

2

25 mm (1 in.) wide

Clear Chromate

178 mm (7 in.)

64 mm (2,5 in.)

0,3

Compliance Pending

Contattaci

477000U00000

2

25 mm (1 in.) wide

Unfinished

305 mm (12 in.)

127 mm (5 in.)

0,22

Compliant

Contattaci

477000C00000

2

25 mm (1 in.) wide

Gold Chromate

305 mm (12 in.)

127 mm (5 in.)

0,22

Compliance Pending

Contattaci

477000L00000

2

25 mm (1 in.) wide

Clear Chromate

305 mm (12 in.)

127 mm (5 in.)

0,22

Compliance Pending

Contattaci

Part Number

Reference Figure

Finish

A Dim

B Dim

C Dim

°C/W

RoHS

Acquista

476200U00000

3

Unfinished

178 mm (7 in.)

241 mm (9,5 in.)

95 mm (3,75 in.)

0,08

Compliant

Contattaci

476200C00000

3

Gold Chromate

178 mm (7 in.)

241 mm (9,5 in.)

95 mm (3,75 in.)

0,08

Compliance Pending

Contattaci

476200L00000

3

Clear Chromate

178 mm (7 in.)

241 mm (9,5 in.)

95 mm (3,75 in.)

0,08

Compliance Pending

Contattaci

476300U00000

3

Unfinished

305 mm (12 in.)

368 mm (14,5 in.)

159 mm (6,25 in.)

0,06

Compliant

Contattaci

476300C00000

3

Gold Chromate

305 mm (12 in.)

368 mm (14,5 in.)

159 mm (6,25 in.)

0,06

Compliance Pending

Contattaci

476300L00000

3

Clear Chromate

305 mm (12 in.)

368 mm (14,5 in.)

159 mm (6,25 in.)

0,06

Compliance Pending

Contattaci

476400U00000

4

Unfinished

305 mm (12 in.)

371 mm (14,59 in.)

152 mm (6 in.)

0,03

Compliant

Contattaci

476400C00000

4

Gold Chromate

305 mm (12 in.)

371 mm (14,59 in.)

152 mm (6 in.)

0,03

Compliance Pending

Contattaci

476400L00000

4

Clear Chromate

305 mm (12 in.)

371 mm (14,59 in.)

152 mm (6 in.)

0,03

Compliance Pending

Contattaci

476600U00000

4

Unfinished

406 mm (16 in.)

472 mm (18,59 in.)

203 mm (8 in.)

0,02

Compliant

Contattaci

476600C00000

4

Gold Chromate

406 mm (16 in.)

472 mm (18,59 in.)

203 mm (8 in.)

0,02

Compliance Pending

Contattaci

476600L00000

4

Clear Chromate

406 mm (16 in.)

472 mm (18,59 in.)

203 mm (8 in.)

0,02

Compliance Pending

Contattaci

  

  



Custom Bonded Fin Heat Sink Extruded Base Options:

Base Number

Profile

Profile Code

Width (mm)

# of Fins

Acquista

68520

18

60,2

18

Contattaci

69920

32

77,98

28

Contattaci

74915

33

81,28

21

Contattaci

65800

03

101,6

20

Contattaci

66565

06

120,65

20

Contattaci

65740

05

121,41

16

Contattaci

66780

07

127

34

Contattaci

72075

34

127

42

Contattaci

70135

35

127

25

Contattaci

66280

09

167,89

33

Contattaci

68180

20

176,02

46

Contattaci

66580

11

187,2

31

Contattaci

64125

12

187,2

20

Contattaci

65805

13

203,2

40

Contattaci

67650

14

204,72

64

Contattaci

72310

38

228,6

45

Contattaci

67350

15

273,81

45

Contattaci

69320

22

316,23

66

Contattaci

66520

17

431,8

49

Contattaci

Bonded Fin Heat Sink Solutions

  • Attrezzature di costo inferiore
  • No Limit on Airflow Length
  • Prestazioni termiche superiori
  • Vasta gamma di materiali e tecniche di produzione disponibili
  • 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.