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FLYINGSCOT
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Supply Network Guru
way of the future
FLYINGSCOT   3/7/2014 12:23:27 PM
NO RATINGS

In the modern world of automation it should be possible to hav no markings on components.  It will only be an issue when there is a problem to solve and the component needs to be visually verified.

SP
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Re: Markings are must
SP   3/7/2014 11:43:35 AM
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Quite surprising. How the quality check department of Digikey would have allowed these resistors or capacitors to go to the customer end.No wonder counterfeit is such a big industry globally.

Jacob
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Re: Markings are must
Jacob   3/5/2014 11:31:01 PM
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"The memories of the days when we leant that BB ROY GREAT BRITON VERY GOOD WIFE.  To remember the color codes of the resistors ( Black, Brown, Red, Orange, Yellow, Gray, Blue, Violet, White) are still fresh in the minds of that older generation engineers."

Prabhakar, I think still that code is relevant. Other than soft coding with embedded and VLSI design, physical components are using in PCBs and values are measured by old conventional method.

Jacob
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Artistic skill in arranging components
Jacob   3/5/2014 11:27:43 PM
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""When I'm building a circuit, if I have a selection of capacitors (for example) of the required type and the same value but of different shapes, sizes, and colors, then I will select the one that best matches, complements, or contrasts the other components on the board.""

Max, the artistic way of arranging components on PCB is designers/soldering persons skill. I think other than resistors; all other components can be possible with different colors and sizes.  Resistors have a fixed colors and its values are measured based on colors and counting rings.

Hailey Lynne McKeefry
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Re: Markings are must
Hailey Lynne McKeefry   3/5/2014 8:29:27 PM
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@Prabhakar, you brought back memories! Clearly the human eye is a big part of spotting issues. On an unrelated but similar vein, i've heard that some libraries are doing away with the Dewey decimal system--beloved by many including me. It seems like change is often seen as a must have as a way of moving forward.

prabhakar_deosthali
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Supply Network Guru
Markings are must
prabhakar_deosthali   3/5/2014 2:40:38 AM
NO RATINGS

Since I am also from the older electronics generation, I fully oppose any move to remove component markings.

The memories of the days when we leant that

BB ROY GREAT BRITON VERY GOOD WIFE

to remember the color codes of the resistors ( Black, Brown, Red, Orange, Yellow, Gray, Blue, Violet, White) are still freash in the minds of that older generation engineers.

Visual inspection of an assembled board is the first step in the quality control.  Also the component markings are a huge help when troubleshooting /repairing a board received from the field or even a new prototype.


If not in the manufactruing, then can it be done by those automated Assembly machines - they can actually measure and print those markings on the components on the go.

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