Haven't looked at the datasheets, the link, or anything else, just shooting from the hip, but might it be a material thing? Maybe the material absorbs the moisture and might blister during a soldering process???
I warned you, I didn't look at anything, just a guess.
Later...
Scott Decker | Senior Engineer, PCB Design Services CID+ | Electronic Systems Center
COLLINS AEROSPACE
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-----Original Message-----
From: TechNet [mailto:[log in to unmask]] On Behalf Of Steve Gregory
Sent: Monday, January 07, 2019 3:19 PM
To: [log in to unmask]
Subject: [External] Re: [TN] DIP Switches Moisture sensitive?
Here's the Grayhill series sheet:
https://urldefense.proofpoint.com/v2/url?u=https-3A__www.digikey.com_catalog_en_partgroup_90hb-2Dseries_6537-3Fmpart-3D90HBW08PRT-26vendor-3D136&d=DwIFaQ&c=ilBQI1lupc9Y65XwNblLtw&r=Z5GKU9L_wgbp5uvPzUdN9HWtU4lRZiIaLoTaEwcy40w&m=Y_jSO5UKBnoAB9tqVO-pQ7zo2kRbuEJiZJLxz1c7hJQ&s=qhWyLxDIfaTY1UR8g0e6MBc615Y8nc-pNR4tr0cEwUY&e=
Just a regular ol' DIP switch....
Steve
P.S. Nobody from Grayhill has gotten back to me yet when I asked why are being labeled as MSL3?
On Mon, Jan 7, 2019 at 1:48 PM Yuan-chia Joyce Koo <[log in to unmask]> wrote:
> is it MEMS switch? it might be need to control moisture to prevent
> sticking (judging from the baking temperature, look like something
> sensitive inside). Just a guess.
> jk
> On Jan 7, 2019, at 1:39 PM, Steve Gregory wrote:
>
> > Hi All,
> >
> > We just got this from Grayhill:
> >
> > https://urldefense.proofpoint.com/v2/url?u=http-3A__download.silicon
> > expert.com_pdfs_2018_12_30_15_39_57_231320_&d=DwIFaQ&c=ilBQI1lupc9Y6
> > 5XwNblLtw&r=Z5GKU9L_wgbp5uvPzUdN9HWtU4lRZiIaLoTaEwcy40w&m=Y_jSO5UKBn
> > oAB9tqVO-pQ7zo2kRbuEJiZJLxz1c7hJQ&s=Pk9mBbtclMt0x5cLfOvpKxT0aCr8jm7U
> > R31bko10Gxs&e= grh_/manual/grayhill_1312_12302018_.pdf
> >
> > I have never heard of a DIP switch being moisture sensitive, they're
> > calling this an MSL3 part too?
> >
> > Do you think that this is a mistake?
> >
> > Thanks,
> >
> > Steve
> >
> > --
> > Steve Gregory
> > Kimco Design and Manufacturing
> > Process Engineer
> > (208) 322-0500 Ext. -3133
> >
> > --
> >
> >
> >
> > This email and any attachments are only for use by the intended
> > recipient(s) and may contain legally privileged, confidential,
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> > immediately and delete the original.
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>
--
Steve Gregory
Kimco Design and Manufacturing
Process Engineer
(208) 322-0500 Ext. -3133
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