Electronics Forum: values (Page 1 of 122)

Cp and Cpk values

Electronics Forum | Mon Mar 03 09:27:19 EST 2003 | floydl

With regard to measuring dot diameter on my dispensers, is there an easier way to calculate the Cp and Cpk values? This manual data crunching is for the birds!

Dielectric values of materials

Electronics Forum | Tue Oct 07 12:32:39 EDT 2003 | Don Beane

I'm looking for the dielectric values of materials for flex, rigid and flex/rigid pcb construction. Has anyone put together tables for this information? Where can I find the information to figure out what dielectric resistances I need based on altitu

Parts date tolerance values

Electronics Forum | Thu Apr 12 10:58:42 EDT 2018 | dleeper

I don't think there's really any industry standard tolerance setting or value. It's safe to open up the tolerances pretty wide as long as your placement accuracy doesn't suffer.

Parts date tolerance values

Electronics Forum | Wed Apr 11 20:27:34 EDT 2018 | kellogs54

Hi All, Sorry if this seems a stupid question but we been having a huge amount or parts rejected on our placement machines. I started looking at the placement program and found the part tolerance date seems to tight. Before I go and open the tolera

Cp and Cpk values

Electronics Forum | Mon Mar 03 11:06:13 EST 2003 | msivigny

Hi floydl, I completely understand when it comes to data crunching after long hours of performing measurements, it's the last and most important arduous task in obtaining performance data. If a measurement and evaluation process that traditionally to

Dielectric values of materials

Electronics Forum | Wed Oct 08 12:57:47 EDT 2003 | davef

For rigid boards, look here: http://www.standardpc.com/ipc4101.htm Google ...ipc 4101... to fill-up your table.

Dielectric values of materials

Electronics Forum | Tue Oct 14 16:38:49 EDT 2003 | MA/NY DDave

Hi I don't understand your question. I do understand dielectrics and flex. What is "dielectric resistance". I might know it by a different name. YiEngr, MA/NY DDave

Dielectric values of materials

Electronics Forum | Wed Oct 15 08:16:56 EDT 2003 | MA/NY DDave

Hi http://webvision.ipc.org/scripts/mgrqispi.dll?APPNAME=IPCWEB&PRGNAME=TOCFRAME&ARGUMENTS=-N,-N,-A,-A,-N50 And then look at 4202 and some of the others. YiEngr, MA/NY DDave

Parts date tolerance values

Electronics Forum | Thu Apr 12 16:55:58 EDT 2018 | esoderberg

I require component engineering to spec in multi vendor parts as long as the following exists 1.Mechanical +/- 15% 2. Same orientation in pocket 3. Same pocket dimensions I have to beat the engineering a few times per year but I think they have the

Cp and Cpk values

Electronics Forum | Tue Mar 04 15:46:00 EST 2003 | EW

I'm not sure to what degree you are manually crunching this data.....If you can set up the data manually, or parse the data from a recording function, to allow it to import into a database with a formula for Cpk, and everything else you could ever in

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