Electronics Forum: 225c (Page 1 of 5)

Peak Temperature

Electronics Forum | Thu Oct 19 08:48:32 EDT 2006 | stepheniii

Time is also a factor, usually. IIRC almost everytime I"ve seen a max temp rating it also included time. ex. 225C for 20 seconds. If a part can take 300C but the spec sheet says 220C and you take it to 225C, it doesn't matter if the heat made the pa

Re: Popcorn effect with PBGA

Electronics Forum | Tue Apr 11 09:45:45 EDT 2000 | emmanuel

Hi Kc, As recommended by the PBGA supplier, the temperature of the package surface should not exceed 225�C during 10 seconds max so as to avoid popcorn effect. Given that some of products reflow profils are specifiing reflow temperature at 250�C,

Flaky Capacitor

Electronics Forum | Thu Jun 05 14:20:55 EDT 2014 | isd_jwendell

230C for max 30 sec.". Isn't 225C close enough to 230C, so that you are effectively exceeding mfg spec by 60 sec.?

Grainy soler

Electronics Forum | Thu Nov 21 01:40:11 EST 2002 | ruimsig

The cause of grainy joints is either too high reflow max 225�C, 90 seconds or the reflow temp was tp low

Process Tin lead vs lead free components

Electronics Forum | Wed Sep 14 09:19:30 EDT 2011 | swag

Target those specific parts/leads with a thermal-couple and a mole and try to get the peak reflow temps up to 225 C. It's not a cure but it will improve the apperance of the solder joints.

25 mil QFP soldering issue

Electronics Forum | Mon Jul 19 21:25:28 EDT 2004 | davef

It seems like the flux is burning-up before the metal begins to flow on this slightly odd component. Alpha talks about alternate reflow recipes for WS609, as follows: * A straight ramp up profile is preferred for reflowing low to medium thermal mass

Leaded and Lead Free BGA's on hte same board

Electronics Forum | Thu May 01 12:46:19 EDT 2008 | dphilbrick

Thanks for the link Samir. Although this thread does have some good info in it I don't think it is hitting the exact point I am trying to resolve. This seems to talk to a one profile fits all for running lead and lead free paste. I want to know about

High Temp Solders and their use

Electronics Forum | Wed Aug 23 19:01:54 EDT 2000 | kbmacg

For high temperature electronics, operating in 225�C ambient environments, most solders can not be used. The high-lead solders all have difficulties of one sort or another. Is their anything new regarding useful high melting point solders? Especially

reflow / soldering temperature

Electronics Forum | Mon Apr 09 14:05:25 EDT 2001 | slthomas

CAL's word of caution is right on. We tend to stay in the 220C-225C max. temp. on our profiles, and that's because the last heads up from engineering came on a part with a spec. of 230C max. temp. We just found out that one of our old SOIC's is spe

hybrid solder joints

Electronics Forum | Thu May 13 21:45:14 EDT 1999 | ardis

I am seeing reflow around my signal pins after being subjected to a profile of 204c for 1 minute and 225c for a min of 30 seconds. Signal pins are soldered into a copper plated alum. case with SB5 and then silver plated. The pins have a hot oil tin

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