74 va and 60 results

Electronics Forum: va and 60 (Page 3 of 8)

I mounted the parts on the buck-boost DCDC converter and measured the characteristics

Electronics Forum | Tue Aug 23 03:29:37 EDT 2022 | samhe

I received a buck-boost DCDC board with an optical sensor from NextPCB, so I mounted the components and measured the efficiency. Table of contents Board received from NextPCB Solder paste printing Mounting of parts Reflow operation check Attaching

Nub bying p&p, stencil printer and reflow.

Electronics Forum | Fri Apr 15 11:15:14 EDT 2011 | wrongway

Hello all lets see you are wanting to place 60,000 parts a day make sure you derate the machines you are looking at to about half of what they claim and your change over will take some time as well we do several change overs each day up to six tim

First time Pick and Place Machine

Electronics Forum | Tue Jul 18 09:56:20 EDT 2017 | svfeingold

Tsvetan that really is an amazing machine. I have looked at it but assumed it was way out of my price range. Is it really possible to get a new machine with 50-60 feeders for under $100k? That sounds like a steal. What is the maximum component heig

Mixing No-clean and water soluble processes

Electronics Forum | Wed Feb 24 10:23:04 EST 2010 | xps

60° C). Moreover (by IPC standard)... "White residues resulting from no-clean or other processes are acceptable provided the residues from chemistries used have been qualified and documented as benign...". So, use an EDX or IC analysis in order to

H1N1 Hand Sanitizers and PCB contamination

Electronics Forum | Fri Nov 06 11:39:17 EST 2009 | 14367

As you know, the H1N1 virus is on the move, and we are trying to take precautions. We wish to use a 60% alcohol based lotion for disinfecting our hands. It has been questioned if the added substances could be detrimental to electronic assembly board

BGA: reworking BGAs, testing and inspection

Electronics Forum | Thu Feb 11 15:07:49 EST 2010 | hegemon

With regards to the rework, size and mass of the PCBs is important, in addition to the size of the components that are to be reworked. You might be in the game with $6K (APE Chipmaster Hot Air machine with Preheater or similar setup) if you have sma

webcam self recording with memory and battery

Electronics Forum | Wed Dec 05 09:17:23 EST 2012 | proceng1

This may not help you, but If you use an Android Phone or tablet (you can get a tripod). There is a free app called Daily Roads Voyager. It is made to be a "dashcam" for a trucker. It records video to the SD card and segments it in 60 second piece

Re: Discoloring of Soldermask and silkscreen

Electronics Forum | Tue Apr 13 18:11:00 EDT 1999 | Jimmy Strain

| Netters, | | When I reflow a PCB there is a discoloration of silkscreen and mask. It appears if Profile is too hot! But I dont think so, maybe I'm wrong? | | 1. Kester 293 no clean | 2. 2.1 C/s for 30s to 150 C | 3. .5 - .7 C/s for 60s to 185