421-K
Image shown is a representation only. Exact specifications should be obtained from the product data sheet.
421-K
421K
421K

421K

DigiKey Part Number
345-1049-ND
Manufacturer
Manufacturer Product Number
421K
Description
HEATSINK POWER NO MNT HOLES BLK
Manufacturer Standard Lead Time
10 Weeks
Customer Reference
Detailed Description
Heat Sink TO-3, DO-5, Stud Mount Aluminum 50.0W @ 58°C Board Level
Datasheet
 Datasheet
Product Attributes
Type
Description
Select All
Category
Mfr
Series
Packaging
Bulk
Part Status
Active
Type
Board Level
Package Cooled
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
Material Finish
Black Anodized
Product Questions and Answers

See what engineers are asking, ask your own questions, or help out a member of the DigiKey engineering community

In-Stock: 300
Check for Additional Incoming Stock
All prices are in NOK
Bulk
QuantityUnit PriceExt Price
1kr 104,03000kr 104,03
10kr 92,07700kr 920,77
25kr 87,70520kr 2 192,63
75kr 82,73307kr 6 204,98
150kr 79,73660kr 11 960,49
300kr 76,84627kr 23 053,88
525kr 74,58760kr 39 158,49
1 050kr 71,87834kr 75 472,26
Manufacturers Standard Package
Unit Price without VAT:kr 104,03000
Unit Price with VAT:kr 130,03750