Electronics Forum | Wed Dec 14 06:16:50 EST 2005 | Rob
Hi Grant, Murata do 0402 chip caps on 50K reels - example: GRM1555C1H101JZ01J 0402, 100pf, NPO/C0G 50V 5% (make sure the final letter is included - the J denotes the reel size - D is standard 10K) Rohm MCR01 series (0402 resistors) come on 6inch, 1
Electronics Forum | Sun Jul 10 15:29:56 EDT 2016 | bradholland
hi everyone, new user and noob here. I've spent the last week getting acquainted with my juki 740, being totally new to placement etc it's been fun to learn! I've now gotten to a stage where everything is setup in the machine for my board and is p
Electronics Forum | Mon Jul 11 07:40:11 EDT 2016 | spoiltforchoice
I don't know your machine but you are looking at the most likely areas. Some machines define a placement pressure, other may define an overtravel to make sure the device is firmly placed on the board. There are usually also timings for when the vacuu
Electronics Forum | Tue Jun 29 16:03:57 EDT 1999 | Dave F
snip | John and Dave, | | Again, I don't work with larger chip devices with this issue. The company I now work with developed a strategy, based on considerable research (as others of us did in the past), to do things like placing 0603's on 0402 pad
Electronics Forum | Wed Sep 07 10:34:52 EDT 2005 | PWH
Have experienced this on a few different cap. parts. Agree with other postings. Following are solutions to problems we have had: 1) Cracked cap too close to board edge per IPC spec. Designer replaced part with 3 caps in series to eleviate stress
Electronics Forum | Mon Jul 16 14:38:22 EDT 2001 | ohboy
If your pad designs don't meet IPC recommendations, using home plate may have adversely affected the (possibly marginal) placement tolerances. This could also be caused by an incorrect home plate design, which IPC has also given recommendations for,
Electronics Forum | Fri Dec 17 18:24:39 EST 1999 | Clarissa L. Ortner
We have a new program that is going to require us to add many leads to presently leadless parts. It isn't preferred by we are up against the wall. We will be doing mostly passive caps, resistors and diodes and some LCC's as well. Is there any one
Electronics Forum | Wed Dec 15 15:55:05 EST 1999 | Mike Naddra
As a general guidline I would agree with a 10% aperature reduction on chip caps , resistors, and fine pitch provided correct land geometries. When soldering to HASL surface finishes. Three things you may want to consider ; the stencil thickness, the
Electronics Forum | Wed Nov 17 09:49:02 EST 1999 | Forrge
We are starting to place SMT resistors and caps (1206) on large backplances, (17" x 23"). The mix of parts are low, just a few different part numbers at this time. The volume of boards is also low, 50-200 per week. I am looking for recommendati
Electronics Forum | Wed Jun 16 15:31:47 EDT 1999 | JERRY JOHNSON
WOULD LIKE TO DO RELOW OF 2 SIDED SMT BOARDS. USUALLY THE BOTTOM SIDE HAS RESISTORS AND CAPS ONLY. WHEN THE BOTTOM OF THE BOARD HEATS UP, THE PARTS ARE FREE TO MOVE AND ONLY SURFACE TENSION WILL KEEP THE COMPONENT FROM FALLING OFF. CAN BOARDS BE RUN
