Eric

I'm sure somebody will tell us if this is not the case.

0402 gives the outline of the capacitor (40thou x 20thou). I have yet to see
a (SMT) capacitor which is taller than wide. So I think you are safe as the
max height will be 20 thou (0.5mm) plus the thickness of the paste 10 thou ?
(.25mm). Max height --> .75mm

Regards

Fin

Finlay Buchan
Technical Director
Datum Dynamics
Phone +44 (0)1290 426200
Fax +44 (0)1290 426212
http://www.datumdynamics.com

-----Original Message-----
From: TechNet [mailto:[log in to unmask]]On Behalf Of Eric Christison
Sent: 20 March 2001 16:04
To: [log in to unmask]
Subject: [TN] Height of 0402 devices


Maybe someone out there can save me a few hours slog through catalogues and
specs.

We're selling an MCM which has 0402 caps and zero ohm links soldered onto
the base. Our customer wants to impose a tight tolerance on the height of
the parts. I think that the height of a generic 0402 can vary from 0.40mm to
0.80mm high. Is this correct or am I being pessimistic?

Thanks,



Eric Christison
Mechanical Engineer
Consumer & Micro Group - Imaging Division
STMicroelectronics
Aviation House
33 Pinkhill
Edinburgh
EH12 7BF
UK

Tel: +44(0) 131 336 6165
FAX: +44(0) 131 336 6001

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