Electronics Forum: marking rob (Page 1 of 3)

Motorola Optocoupler marking

Electronics Forum | Mon Jan 30 07:22:51 EST 2006 | Rob

Hi Nick, It's probably one of two devices - MOC8020 or MOC8021 depending on the CTR (Current transfer ratio). I have always used http://www.icmaster.com for older semiconductor datasheets. (Back in the old days we used to use the IC master data boo


Electronics Forum | Wed Mar 21 14:12:38 EDT 2018 | rob

Yep, especially if they are the silicon domed type that mark easy. We gang pick LEDs on our Yamaha kit, getting 12 at a time per side, but we have the luxury and volume of having multiple reels of the same components.

Online Label printing & placement

Electronics Forum | Mon Sep 12 03:38:03 EDT 2016 | rob

Hi John, We picked up a used laser marker (Asys ALS03) last year for around 30K euros and it has done approx 2M codes (we use 6mm square QR) in the last year without fault - it reads them all back to confirm which is handy. We also use labels, and

JUKI vs UIC Pick N Place Machines

Electronics Forum | Fri Apr 06 02:17:15 EDT 2018 | rob

@ Sr.Tech, Most of our Chinese spares are Juki & Yamaha original & still bagged, just much cheaper. They wouldn't sell machines in China if all the spares and consumables were at European mark ups. Nozzle wise the Juki 750 & 760 copies are not 100%

Board House Pcb Question

Electronics Forum | Wed Mar 15 22:08:20 EST 2006 | davef

Brad We agree with Rob. Even if the fab marks the fids [on both sides] to reduce component attrition, you'd be surprised in the amount of paste that 'disappears' on x-out boards. Do the numbers [follow the money].

PC Board Marking

Electronics Forum | Mon Jul 09 16:14:06 EDT 2007 | rgduval

A number of years ago in a previous life, we discussed laser marking 2-d matrix codes. We had a number of boards for customers that just were too populated to get any sort of a label onto. 2-D laser units were avaialable to work in line with our au

Placement costs

Electronics Forum | Tue Jul 24 08:44:17 EDT 2007 | rgduval

Ron, I'd agree that that sounds high. Some things that may be contributing to it: Volume. lower build quantity often leads to higher placement costs. NRE. Does this website quote an NRE for solder stencils, machine programming, and reflow profili

Max temp on a lead free part

Electronics Forum | Fri Nov 05 05:06:18 EST 2004 | rlackey

Thanks Mark, we're not going to go anywhere with that particular supplier now. Cheers, Rob.

soldering robot

Electronics Forum | Wed Mar 28 10:58:13 EDT 2007 | rlackey

Hi Mark, When we last checked out the laser systems you had to either use a solder preform or apply solder paste to the area, which meant either dispensing or some clever printing. Cheers, Rob.

Fuji CP6 Y-axis placement problem

Electronics Forum | Wed Mar 19 15:59:40 EDT 2008 | rmitchell

Hi, I am having some problems with my CP6 placement changing in the Y axis. I had to move all parts by +.12mm this morning. Then after 20 boards the placement shifted too high by about .12 mm The IP stayed the same with the same pcb's and fid coo

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