Electronics Forum | Mon Nov 20 04:39:19 EST 2000 | SV
Hello, I have to design a PCB for which the customer have the following temperature requirements: -55degC to +85degC operating temp. -61degC to +125degC storage temp. My question is: does the FR4 material meet this conditions? Which are the parame
Electronics Forum | Mon Nov 27 17:44:10 EST 2000 | Dave F
Gawd. Sure FR-4 will meet those conditions. Tg [check the fine SMTnet Archives for discussion on Tg] of FR-4 is 130�F or so. Consider: * Is the delT between Tg and the upper operating [or storage] temperature acceptable for your application? * D
Electronics Forum | Tue Jun 11 04:08:55 EDT 2019 | aite
What type of product are you talking about in SMT? The SMT05E series are non-isolated DC/DC converters packaged in a surface mount footprintgiving designers a cost effective solution for conversion from a 3.3V to 5V source. Operating Temperature is -
Electronics Forum | Wed Dec 17 08:49:04 EST 2003 | patrickbruneel
Kev, It looks like you have a preheating powerplant and you still only get the board up to 85 Deg. This indicates that the preheating is out of calibration or the range settings might be very wide (Fex the preheat elements shut down at 500 and go ba
Electronics Forum | Wed Dec 17 03:26:17 EST 2003 | Kev
Hi Lads, Thanks for all of the replies. To answer a few of your questions..... My wave is a Hollis PT500N. It has 3 zones of pre-heater rod elements. Each individual element (601195-01) is 500 watts. There are 16 elements per zone so 8 Kw per zone.
Electronics Forum | Fri Aug 23 08:41:37 EDT 2013 | emeto
This is very interesting question. I would think that the temp range will be defined by your machine manufacturers, not by IPC. PCB and electronic parts can handle broad temperature range. Most machines guarantee accuracy in the range (10-30)Degrees
Electronics Forum | Fri Aug 23 03:32:12 EDT 2013 | pradeep_selec
Can anybody help & confirm the Humidity & Temperature Range to be maintained on SMT SHopfloor according to the IPC standard & its IPC standard number. Also the ways to compensate the humidity if its out of range; low cost / natural method.
Electronics Forum | Tue Sep 03 04:19:51 EDT 2013 | pradeep_selec
Can anybody suggest the way to compensate humidity if its out of range
Electronics Forum | Wed Feb 07 21:54:45 EST 2007 | davef
That's a peculiar temperature range for your cycling. What are your ramps and dwells?
Electronics Forum | Thu Feb 28 07:32:07 EST 2008 | cyber_wolf
The temperature range of Turmofluid 40b is not sufficient for PB free temps.
