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June 2014

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Subject:
From:
Karen Tellefsen <[log in to unmask]>
Reply To:
TechNet E-Mail Forum <[log in to unmask]>, Karen Tellefsen <[log in to unmask]>
Date:
Thu, 5 Jun 2014 08:31:53 -0400
Content-Type:
text/plain
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text/plain (89 lines)
Choose your laminate carefully.  Lower grades of FR4 and PVC insulation do 
ugly things at that temperature, crispy critters
.
Karen Tellefsen - Electrical Testing
Alpha / 109 Corporate Blvd./ S. Plainfield, NJ 07080
[log in to unmask]
908-791-3069




From:   Graham Collins <[log in to unmask]>
To:     <[log in to unmask]>, 
Date:   06/05/2014 08:13 AM
Subject:        Re: [TN] high temp environment
Sent by:        TechNet <[log in to unmask]>



My understanding is that the device can be expected to see 170 C.

regards,

Graham Collins
Senior Process Engineer
Sunsel Systems
(902) 444-7867 ext 211

On 6/4/2014 4:51 PM, Stadem, Richard D. wrote:
> What temperatures will the device see (both external and internal) in 
the field?
> There are companies that make equipment for monitoring lava 
temperatures. If they can do that, then the inside of an oil well should 
be pretty ho hum.....
>
> -----Original Message-----
> From: TechNet [mailto:[log in to unmask]] On Behalf Of Graham Collins
> Sent: Wednesday, June 04, 2014 2:19 PM
> To: [log in to unmask]
> Subject: [TN] high temp environment
>
> Hello Technet!
> We are discussing an opportunity with a customer who is looking at 
placing an instrument down-hole in an oil well, hence a high temp 
environment.  Are there any good resources around to help me with this 
one?  Obviously I need high temp solder (Sn96Ag4?), the components will 
have to be carefully picked, and we will need PWBs that will be OK at high 
temp (polyimide?).
>
> I've got some homework to do! :-)
>
> --
> regards,
>
> Graham Collins
> Senior Process Engineer
> Sunsel Systems
> (902) 444-7867 ext 211
>
>
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