Electronics Forum | Mon Jan 12 14:54:58 EST 2015 | nkrcompany
Hi All, I would like to ask some help from you. It would be very important for me to identify a bad IC. It is located in a 2,4GHz radio frequency receiver, maybe the IC is some kind of low noise amplifier, but I'm not sure about it. It has 5-pin, see
Electronics Forum | Tue Jul 30 12:46:15 EDT 2019 | davef
I'd be surprised if CCGA leads were getting bent or tilted during the reflow soldering process. If they were bent during handling, that would be less surprising. 235*C on the body for a minimum peak temperature of 208*C at the connecting leads does
Electronics Forum | Fri Feb 23 09:55:02 EST 2024 | carl_p
Got you. 225C for peak does seem low to me. Henkle is the main one i've used with a peak of 245c & Alpha around the same although I try to keep that at no higher than 235C as we use it for LED arrays. If the peak is that low, is the liquidus te
Electronics Forum | Tue Jan 02 14:50:37 EST 2001 | fmonette
Dear Vicki, If you decide to use high temp paste, I suggest that you verify the rating of the components, especially for moisture-sensitive devices which are normally qualified at peak reflow temperatures of 220-235C. The specified floor life will
Electronics Forum | Tue Apr 11 20:37:06 EDT 2000 | Dave F
Rich: Now that�s a great question!!! You�re corrrect. Primary-side temperature is the driver of the differences in the sensitivity to moisture between SMT and PTH devices that you�re finding. * Primary-side temperature for SMT ~= Secondary-side te
Electronics Forum | Sat Jun 21 00:37:20 EDT 2003 | nifhail
Most of the capacitors & resistors supplier have implemented Leadfree finished on their components and like it or not, most of the PCBA house already using them in their process. I just got a notice from my component supplier telling me that they wil
Electronics Forum | Fri Nov 12 10:47:03 EST 2004 | davef
Fengang: You say, "And I have investigated a lot of component manufacturers, it seems like that most of them just change the plating of components' lead for lead free. That means lead free process has little impact on the component manufacturers, is
Electronics Forum | Sat Aug 20 15:22:26 EDT 2005 | Jaya
Hi There, Good Day 2 Every1.:) I'm in mid of issue of SMT Components (Resistor & Capacitor) Turn Yellowish issue after reflow oven. Is there anyone have handle this issue previoslly and what is the reason behind the components behaviour in such. Can
Electronics Forum | Mon Nov 21 16:29:02 EST 2005 | pjc
Here is Manix web site: http://www.manixmfg.com/ Yes, the zone temps can be set high, but the thermal transfer efficiency is very low. I was profiling one of these ovens last week. To get 215C on the board you have to set the zone temp well over 30
Electronics Forum | Tue Jan 31 15:51:04 EST 2006 | russ
Relays huh? I can tell you from previous experience that relays are not a good heat gun candidate. Did you check how long this part can withstand the 240? I do not know what the 4 setting is on a liester but it is probably well in excess of the 24
