Electronics Forum | Mon Nov 22 08:30:53 EST 2021 | zxcvb
Hello there! In one SMPS, I noticed a blown resistor with the following color code: yellow (4) Violet(7) Gold(?) Gold Black. I'm not sure what the value is. The dimensions of the resistor are those of a conventional MF0207 metal film resistor. I assu
Electronics Forum | Thu Apr 27 02:39:50 EDT 2017 | ajaytyagi
Thanks for sharing your experience. I have similar view too.
Electronics Forum | Wed Apr 26 06:09:12 EDT 2017 | ajaytyagi
Hi, Pl let me know about opinion/experience whether thick film chip SMD resistor which is MSL-1 Required to bake before being usedon SMT line. I want to use SMD resistance spool which is around 2 yeasr old kept at 25 deg room temperature at around 4
Electronics Forum | Wed Apr 26 08:13:47 EDT 2017 | spoiltforchoice
MSL 1 is unlimited factory floor time before reflow. I have spools that are 10+ years old and haven't encountered any issues using those parts. It goes without saying those parts are not exactly used in volume so its not a massive sample but that is
Electronics Forum | Wed Mar 30 14:02:25 EDT 2016 | blnorman
The program I'm working on is having endcap metallization/resistive element failures. These are on MELFs manufactured by IRC/TTE (MCHP). A sister program is having the same issues. They pulled a couple of date codes and did visual examination and
Electronics Forum | Tue Aug 28 16:07:09 EDT 2001 | slthomas
Just talked to my component engineer. We use the B parts also, and apparently the B suffix indicates compatibility with wave or reflow applications, X is for reflow only. Since we only reflow these parts, sounds like that might be the best route fo
Electronics Forum | Tue Feb 14 06:15:52 EST 2012 | babithak
Can any one help me on articles about reasons for metal film resistor value drifting after working over a period of time Thank you
Electronics Forum | Tue Feb 14 07:49:09 EST 2012 | davef
Sounds like a unique request. Have the resistors been heated or are they old? For information about metal film resistors, look here: * ecadigitallibrary.com/pdf/CARTSEUROPE05/ECARTS0533_mai.pdf * homepages.eee.strath.ac.uk/~bwwilliams/Book/Chapter%
Electronics Forum | Tue Jun 23 17:57:23 EDT 1998 | Larry Hurst
Does anybody have any data on the thermal resistance and thermal time constant of 0805 and 1206, metal film, surface mount resistors when mounted on a typical PC board? Even approximate informatin would be useful. Thanks in anticipation. Larry Hurst
Electronics Forum | Mon Dec 23 17:24:59 EST 2002 | davef
Guessing at the meaning of your description of �res., fmf, .100, 3010, 1, S�: * res - Resistor * fmf � �mf� tells you �metal film� �fmf� tells you �flame metal film� type * .100 - Precision tolerance 0.1%, although it could be power rating. * 3010 �
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