Only in static or radiant mode. Otherwise surface finish has more effect in forced or convection mode. But, in any event, black seems to be the the most radiant in black body radiation mode. There are more details than than but this is just a thumbnail synopsis.
Hans Mellberg Engineering Manager BACL 230 Commercial Street Sunnyvale CA 94085 USA 408-732-9162 x38 408-732-9164 fax ----- Original Message ----- From: "LEUNG YAT WAH DEREK" <[email protected]> To: "EMC- PSTC" <[email protected]> Sent: Thursday, May 08, 2003 6:50 PM Subject: Heat Sink Colour. > > Could anyone tell me about the heatsink is really in lighter colour can release heat faster ( similar to we wearing lighter clothes in summer), but why people always painted the heatsink in black or very dark colour, and the material of the coating on heatsink will affect their performance? Thanks. > This message is from the IEEE EMC Society Product Safety Technical Committee emc-pstc discussion list. Visit our web site at: http://www.ewh.ieee.org/soc/emcs/pstc/ To cancel your subscription, send mail to: [email protected] with the single line: unsubscribe emc-pstc For help, send mail to the list administrators: Ron Pickard: [email protected] Dave Heald: [email protected] For policy questions, send mail to: Richard Nute: [email protected] Jim Bacher: [email protected] Archive is being moved, we will announce when it is back on-line. All emc-pstc postings are archived and searchable on the web at: http://www.ieeecommunities.org/emc-pstc
