421F Details _421F Related parameters PDF

Thermal - Heat Sinks

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Specifications

Description	Details
Series	421
Package	Bulk
Type	Board Level, Extrusion
Package Cooled	TO-3, DO-5, Stud Mount
Attachment Method	Press Fit
Shape	Rectangular, Fins
Length	3.000" (76.20mm)
Width	4.750" (120.65mm)
Diameter	-
Fin Height	2.625" (66.67mm)
Power Dissipation @ Temperature Rise	50.0W @ 58°C
Thermal Resistance @ Forced Air Flow	0.70°C/W @ 250 LFM
Thermal Resistance @ Natural	1.16°C/W
Material	Aluminum
Material Finish	Black Anodized

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