Electronics Forum: passives (Page 26 of 39)

Land Pattern Discrepencies

Electronics Forum | Sat Mar 25 00:02:17 EST 2006 | rpowell

Hi everyone, I'm relatively new to SMT PCB design and am running into some frustration with the land pattern design of "standard" smt components in particular passive chip components. It seems each manufacturer (Yageo, Rohm, Panasonic) has their own

Leader tape on partial reels

Electronics Forum | Thu Mar 30 13:53:53 EST 2006 | PWH

We've had poor luck with leaders - inefficient, not cost effective for the price of the parts usually. In my opinion, your best bet is to over-issue parts to a scrap # that works for you (all feeders are different as are machine scrap rates). This

Reflow Oven Profiling

Electronics Forum | Tue Apr 25 10:42:38 EDT 2006 | TMC

Almost all of the components on the bottom side are passives however, there are a couple of mBGA's and qfp's. I am aware that even if the components on the bottom do get reflowed, surface tension of solder will hold them in place. As far as IC's, w

Mydata package libraries

Electronics Forum | Tue Oct 24 10:03:24 EDT 2006 | billyd

All - I'm hoping I can get a little feedback here on my package libraries for my Mydata machines. I have four tied to a server right now, and I have several operators that apparently like to make packages, so I have some called 0805-05-A-MY-9-2 and t

need info on Quad 1000

Electronics Forum | Wed Feb 21 12:40:44 EST 2007 | jmelson

There is a Quad 1000 in eBay stores, but I can't get much info on what a Quad 1000 can or can't do. It appears to be a "chip shooter", but can it do 0805 passives, too? Does it need an option to do those? Does the 1000 have some form of optical ce

lead free components in leaded process

Electronics Forum | Fri Jul 20 08:09:09 EDT 2007 | chrispy1963

In passives I dont know if anything changed at all other than the terminal plating. As for Active components there has been much engineering done to allow for the extra heat needed to liquify say SAC305 or other lead free pastes without damage to th

Mydata A12 tool tip damage

Electronics Forum | Wed Jul 18 03:55:39 EDT 2007 | allgood

Thank you for the reply - and yes its a TP9-UFP! Problem doesnt happen all the time and may not happen for extended periods on the job where we see it most - this particular job uses all feeder slots so the head is whizzing back and forth quite a l

Adhesive printing with double side board

Electronics Forum | Tue Jul 24 10:23:36 EDT 2007 | ck_the_flip

Michelle, Traditionally, the adhesive side is always run first since most designers put passives (resistors, caps) on the adhesive (solder side) of the board. I worked in an environment where we did the adhesive side first, sometimes the boards "sa

Stock footage of SMT process?

Electronics Forum | Tue Dec 18 17:07:50 EST 2007 | ajd400

Hello there, Please forgive the wildly-off-topic nature of this post. For a video documentary about radios in the 1920's, I'm looking for stock footage of modern PC board manufacture. (I'm a software engineer but doing this effort as a hobby). Th

Salary Ranges

Electronics Forum | Tue Jan 29 17:48:15 EST 2008 | Paul M.

I do all the above and more !! The BOSS won't give me a title, seems to think it will limit my "other duties as assigned" bull-sh*t. I just got my stinkin miniscule salary cut by 10% AND my bennies cut by 50 friggin percent !! My friend that works


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