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August 2011

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TechNet E-Mail Forum <[log in to unmask]>, Juliano Ribeiro <[log in to unmask]>
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Mon, 15 Aug 2011 08:23:00 -0400
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TechNet E-Mail Forum <[log in to unmask]>, Paul Reid <[log in to unmask]>
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Paul Reid <[log in to unmask]>
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I learned recently that white PCBs reflect some of the energy emitted by the LEDs which reduces heat in the assembly. LEDs that are not internally mounted in the PWB, can get as hot as 180°C. 

The application proposed used a very white solder mask that resists yellowing over time. 

Sincerely,  
Paul Reid 
Program Coordinator  
PWB Interconnect Solutions Inc. 
235 Stafford Rd., West, Unit 103 
Nepean, Ontario Canada, K2H 9C1 
613 596 4244 ext. 229  
Skype paul_reid_pwb 
[log in to unmask] 
 
-----Original Message-----
From: TechNet [mailto:[log in to unmask]] On Behalf Of Juliano Ribeiro
Sent: August 15, 2011 8:06 AM
To: [log in to unmask]
Subject: [TN] LAMP LED PCB

Technetters,

We need design the PCB to LED LAMP and we verified that PCBs are white. 
What the benefits of the White PCB for this application?
What attention in the process to white pcb? 
Is cost higher than green pcb?

Thank you

Juliano Ribeiro


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