Electronics Forum | Mon Oct 18 12:02:06 EDT 2004 | Rob
Hi Guy's, Sorry about this, but yes it's another lead free related question. We are looking at using a Chinese SMD DC-DC Converter in a new design, whilst keeping one eye on the approaching Lead-free issue. The manufacturer claims that these are O
Electronics Forum | Wed Jul 06 04:27:30 EDT 2005 | aj
Javi, If the components are caps and resistors etc there should not be much problems. I would say everyone at this stage has a mixture of leadfree and lead components. The problem really starts when you are running the likes of Leadfree BGA where th
Electronics Forum | Fri May 26 10:17:21 EDT 2006 | pjc
Here are settings for a Vitronics SMR500 oven for Indium Corp. 5.1 No-Clean Pb Free solderpaste, the product profiled was of medium thermal mass: RTS, Temp C 120, 170, 195, 248, 264, conveyor speed was 43cm/min (17"/min.) Peak temps were reached in
Electronics Forum | Thu Oct 19 08:54:39 EDT 2006 | df
thanks for replies guys. I have a nearly Full RoHS Compliant bom with 1 device non-rohs. It is a soj28 device rated ( as best as I can find out at 225degC) Production are screaming for these boards - I put a thermocouple on the part and it hits 23
Electronics Forum | Mon Oct 23 10:46:58 EDT 2006 | Steve
I know Mydata has machines that have a 44" X 32" placement area, reflowing something that big is another story. Most reflow ovens I know of have a maximum conveyor width of 20", although Heller ovens can go 23.5" wide. If you're into Vapor Phase sold
Electronics Forum | Thu Jul 10 10:25:05 EDT 2008 | gregoryyork
I guess the paste is Leaded hence the 220 Peak temp and the Sn100c is Eutectic at 227C so you need to be hotter to melt the HASL finish or you are relying on it alloying together with the paste which takes much longer. suggest running peak temp of 23
Electronics Forum | Wed Feb 04 08:49:52 EST 2009 | milroy
Hi First of all you have to respect the dwell time and the time after the reflow at peak tmeperature.(225�C for Pb and 235�C for Pbf) You can find the reflow profile from manufacturer for majority of parts designed for reflow sodlering. In general t
Electronics Forum | Tue Sep 08 10:19:27 EDT 2009 | grics
Good Morning! I need some clarification. Our company is working with a start up company on some prototypes. On the bottom of the assembly they are placing a SOT23-5 component. It is being presented to the wave so the lead banks are parallel to the
Electronics Forum | Sun Nov 20 18:15:24 EST 2011 | xborre
Hello, We are about to buy a old used Dima Optimat P&P I have already read the manual to know more about the possibilities. I have read it can place SOT23 packages, but i'm currious if it can recognize and place also the 5 pin variant (SOT23-5) and
Electronics Forum | Wed Sep 26 12:16:44 EDT 2012 | bwjm
Hi Guys,recently i am facing an issue. Refer to the attached photo. This PCB is high RF speed, gold immersion single layer. After reflow, my solder seems to have black stains on it. I tried with SAC305 paste water soluble and no-clean, both results a
