Uh-oh... Arctic Silver question.

Candle Power Forums

Help Support Candle Power:

dandism

Enlightened
Joined
Aug 18, 2009
Messages
280
City & State/Province
San Jose, CA
I just used some Arctic Silver 5 minute epoxy to attach an XR-E to an anodized heatsink. Will this be a problem?
 
I just used some Arctic Silver 5 minute epoxy to attach an XR-E to an anodized heatsink. Will this be a problem?
That's rather vague. What potential problem do you foresee? As long as it is anodized you don't have to worry about the electrical contacts. Hopefully you already tinned your top contacts as it is a bit more difficult after the fact. Otherwise I don't see any issues.
 
If the heatsink is anodized, it should be electrically isolated so the contacts on the led shouldn't short.
If you mean with the actic silver, it can isolate but requires precise application.
Again, sorry but your question's unclear. I'm sure it makes perfect sense to you, but late at night reading many posts I'm not certian the direction your comig from.
 
I think the question is whether or not the Arctic Silver will make a short between the positive and negative pads on the bottom of the LED. Presumably the LED is not mounted on a star.

As for an answer... I really don't know. I can't remember how conductive AS is.
 
AS5 is not tension conductive . Silver powder is encapsulated with isolations layer .
 
As an Amazon Associate we earn from qualifying purchases. Product prices and availability are accurate as of the date/time indicated and are subject to change.
You can disable the bottom contacts on the XR-E. They connect to the top contacts with through holes that are just visible on the contact as a small dot. If you cut the corners of the chip or sand away the bottom contacts until that through wire is isolated, the bottom contacts are electrically neutral. Perfect for reflow soldering!

Arctic epoxy is not (very) electrically conductive when it's not hellishly compressed.
 
I just used some Arctic Silver 5 minute epoxy to attach an XR-E to an anodized heatsink. Will this be a problem?

I hope you didn't use "Arctic Silver 5" try to "glue down" the LED.

"Arctic Silver 5" or AS-5 is not a Thermal Adhesive, it's thermo paste, you'll need to hold the led done mechanically if you used AS-5.

You want to use: "Arctic Silver Thermal Adhesive", which is not "Arctic Silver 5".


Edit. Never mind,
You probably meant "Arctic Silver" "5 minute epoxy", you should be fine.
 
Last edited:
Back
Top