June 9, 2017

Check with the NASA EEE part folks s they have a lot of experience on
radiation exposure for parts.  However, not sure if they have info on COTS
parts.

On Fri, Jun 9, 2017 at 12:54 PM, Joyce Koo <[log in to unmask]> wrote:

> Need to know basis.
>
> Sent from my BlackBerry 10 smartphone.
>   Original Message
> From: Ken Barton
> Sent: Friday, June 9, 2017 12:43
> To: TechNet E-Mail Forum; [log in to unmask]
> Subject: RE: [TN] [EXTERNAL] Re: [TN] Preferred Parts List help please
>
> "... but it is up to you to find what meet the requirements, e.g. fine
> pitch device more susceptible.."
>
> This is a key statement. What I get from this is there is compiled/"known"
> info out there but where to find it.
>
> Ken Barton CID
> Technical Designer,
> Avionics HW
>
> Blue Origin, LLC
> 21218 76th Avenue S.
> Kent, WA 98032 (253) 437-5625 x625
> [log in to unmask]
>
>
> -----Original Message-----
> From: TechNet [mailto:[log in to unmask]] On Behalf Of Joyce Koo
> Sent: Friday, June 09, 2017 9:36 AM
> To: [log in to unmask]
> Subject: Re: [TN] [EXTERNAL] Re: [TN] Preferred Parts List help please
>
> As for the rad hardening, each vendor got different part number for the
> part, TI definitely got list, but it is up to you to find what meet the
> requirements, e.g. fine pitch device more susceptible.. you really have to
> pay attention for the redundancy, one recoil cascade can knock it all out
> if two elements are close together... etc. Best of luck for avionics,  ‎not
> like you can get it back for repair and overhaul.   Best luck.
>
> Sent from my BlackBerry 10 smartphone.
>   Original Message
> From: Ken Barton
> Sent: Friday, June 9, 2017 12:26
> To: [log in to unmask]
> Reply To: TechNet E-Mail Forum
> Subject: Re: [TN] [EXTERNAL] Re: [TN] Preferred Parts List help please
>
> Far as I know we are supposed to be dealing with GIDEP, will take another
> look.
>
> Thanks,
>
> Ken Barton CID
> Technical Designer,
> Avionics HW
>
> Blue Origin, LLC
> 21218 76th Avenue S.
> Kent, WA 98032 (253) 437-5625 x625
> [log in to unmask]
>
> -----Original Message-----
> From: TechNet [mailto:[log in to unmask]] On Behalf Of Joyce Koo
> Sent: Friday, June 09, 2017 9:24 AM
> To: [log in to unmask]
> Subject: [EXTERNAL] Re: [TN] Preferred Parts List help please
>
> Did you get access to gidep? Not sure what is the status of the program
> now. If it still active, it might help.
>
> Sent from my BlackBerry 10 smartphone.
>   Original Message
> From: Ken Barton
> Sent: Friday, June 9, 2017 12:21
> To: [log in to unmask]
> Reply To: TechNet E-Mail Forum
> Subject: [TN] Preferred Parts List help please
>
> Hi,
>
> We have not yet figured out just how we are going to sort COTS parts by
> safety/mission criticality based on rad tolerance and longevity etc. We
> don't even have a preferred Parts list so I'm looking for recommendations
> for where to start. It's a big question, are there reference lists of COTS
> parts available that I can cross check with the parts we are using? Is this
> something that only a dedicated/experienced component engineer usually
> handles (We don't have one. While I'm a +35 yr experienced layout designer
> charged with this high level process I'm not a EE or CE level).
>
> Any advice/insight is much appreciated, thank you
>
> Ken Barton CID
> Technical Designer,
> Avionics HW
>
> Blue Origin, LLC
> 21218 76th Avenue S.
> Kent, WA 98032 (253) 437-5625 x625
> [log in to unmask]<mailto:[log in to unmask]>
>