Electronics Forum: polarities (Page 5 of 25)

Can we check polarity and upside downs on My100?

Electronics Forum | Thu Jul 30 17:31:41 EDT 2015 | dyoungquist

We are running a Mydata (Micronic) MY15E. The MY100 is the next generation after the MYxxE series. As far as I know, there is no way for the machine itself to check the polarity of ICs to see if 1 or more are in the tube or reel different from all

Defect in diode(Reverse Polarity)

Electronics Forum | Tue Aug 01 20:50:03 EDT 2023 | calebcsmt

If it was only 1 or 2 components on a reel that were backwards, I would lean more likely the cause just being the component was wrong direction in Tape from factory. Not much you can do from a Pick & Place perspective, generally.. Most machines use

LINEAR VOLT REG Polarity diagonally opposite

Electronics Forum | Sat Aug 09 07:51:40 EDT 2008 | davef

From the sound of things, the part has the correct polarity. More correctly, your placement program has the part rotated 180*. It's not uncommon to receive parts from a supplier that are rotated from order to order. Consider revising your first piece

LINEAR VOLT REG Polarity diagonally opposite

Electronics Forum | Sat Aug 09 19:25:07 EDT 2008 | thaqalain

Thanks for reply Thats in my mind to remind Process team to modify MPI. We already having some trouble with other components and my eyes were focused on specific problems +what was specifiewd in MPI to be see closely. Do you think we need to revise

Tape/Reel Counter

Electronics Forum | Fri Mar 19 12:53:35 EDT 2010 | pcbrookie

Hello everyone. I'm looking for some general information on reel counters. We are trying to tighten our inventory counts, and rather than estimate a reel we're looking into getting an accurate count via a reel counter. So first, I'm wondering what

Mirtec Programming Discussion

Electronics Forum | Wed Mar 13 19:56:34 EDT 2013 | hegemon

It has been some time since I programmed a mirtec machine, but I think the technique would be to break the component into different banks of leads with unique locations. U25_Top, U25_Right, U25_LEft, etc... Use the centroid location to check presence

MOTOR MALFUNCTIONING

Electronics Forum | Mon Dec 04 23:34:34 EST 2017 | jineshjpr

Dear Sir, Sanyo Denki Bi-Polar motor rarely rotates with actual speed while Picking up the component, Otherwise Stepper motor rotates with very slow moving speed by creating noise and same speed variation repeats while Placing the component. After co

AOI- Link Correction

Electronics Forum | Mon Feb 26 08:39:09 EST 2001 | Cal

Previously posted, was information regarding "BLUE DOT" UV inspection. The link for original solutions was incorrect. This is a process where a UV signature is imbedded at the board level to visually check missing components, tombstoning and polarity

AOI systems

Electronics Forum | Thu Mar 29 16:34:18 EST 2001 | larryk

Genny, Would you use the X-Ray in addition to AOI? Or would it be in place of? If so, would it pick out wrong value components? Polarity? I never thought of it as a replacement. Seems like you have investigated into this. Do you mind sharing your fin

Re: Polarity of parts in packages

Electronics Forum | Sun Oct 31 19:36:19 EST 1999 | JC Leigh

Can you please give me a pointer on where to find the component package orientation standard in the IPC? I think we'll work up a spec sheet for the folks in purchasing and let them handle the vendor side of this problem. Thanks for your help! JC


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