On Sun, 2010-11-28 at 08:01 +1300, Brent Brown wrote: > =20 > > *2 Conformal coating or washing of the components is not acceptable > > because they are not hermetically sealed. > >=20 > That indeed would be bad. However the data sheet I looked at covers a > whole range of parts, seems to depend on exactly where you look... (keep > reading till you find the specs you prefer?!) eg: >=20 > http://www.farnell.com/datasheets/45562.pdf >=20 > >From page 12 of above doc: >=20 > MHz Chip Type Notice (Soldering and Mounting) for Automotive > CSTCC/CSTCR/CSTCE_V/CSTCE_G/CSTCV/CSACV Series >=20 > 2. Wash > (1) Cleaning Solvents > HCFC, Isopropanol, Tap water, Demineralized water, > Cleanthrough750H, Pine alpha 100S, Techno care FRW >=20 > 4. Others > Conformal coating of the component IS acceptable. > However, the resin material, curing temperature, and > other process conditions should be evaluated to > confirm that stable electrical characteristics are > maintained. >=20 > The assumption I made was that the CSTCE8M00G55Z is a CSTCE_G series > device so has the above specs. I could the be wrong. The low number of > boards (20) I've made so far with the parts have been washed and then > conformal coated without any problems. >=20 > Brent. >=20 www.murata.com/products/catalog/pdf/p17e.pdf CSTCE 8M00 G 55Z=20 All of the CSTCC, CSTCE, and CSTCW parts are marked with a "*2" which points to the objectionable foot-note. --=20 James D Baker jdbaker@mchsi.com --=20 http://www.piclist.com PIC/SX FAQ & list archive View/change your membership options at http://mailman.mit.edu/mailman/listinfo/piclist .