Fans, Thermal Management  ·  Heat Sinks

421K — HEATSINK POWER NO MNT HOLES BLK

Manufacturer	Wakefield Thermal Solutions
Harmful substances	RoHS   Lead-free
Series	421
Package Cooled	TO-3
Attachment Method	Press Fit
Outline	120.65mm x 76.20mm
Height	2.62" (66.55mm)
Material	Aluminum
Power Dissipation @ Temperature Rise	50W @ 58°C
Thermal Resistance @ Forced Air Flow	0.7°C/W @ 250 LFM
Thermal Resistance @ Natural	1.16°C/W
Found under name	345-1049, 421-K