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	CompliancePending	Contattaci
476700L00000	1	None	Clear Chromate	178 mm (7 in.)		0,3	CompliancePending	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	CompliancePending	Contattaci
476900L00000	2	25 mm (1 in.) wide	Clear Chromate	178 mm (7 in.)	64 mm (2,5 in.)	0,3	CompliancePending	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	CompliancePending	Contattaci
477000L00000	2	25 mm (1 in.) wide	Clear Chromate	305 mm (12 in.)	127 mm (5 in.)	0,22	CompliancePending	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	CompliancePending	Contattaci
476200L00000	3	Clear Chromate	178 mm (7 in.)	241 mm (9,5 in.)	95 mm (3,75 in.)	0,08	CompliancePending	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	CompliancePending	Contattaci
476300L00000	3	Clear Chromate	305 mm (12 in.)	368 mm (14,5 in.)	159 mm (6,25 in.)	0,06	CompliancePending	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	CompliancePending	Contattaci
476400L00000	4	Clear Chromate	305 mm (12 in.)	371 mm (14,59 in.)	152 mm (6 in.)	0,03	CompliancePending	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	CompliancePending	Contattaci
476600L00000	4	Clear Chromate	406 mm (16 in.)	472 mm (18,59 in.)	203 mm (8 in.)	0,02	CompliancePending	Contattaci

Custom Bonded Fin Heat Sink Extruded Base Options:

Extruded Base Options

Base Number	Base 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.

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