Thanks, the thing is the track that will go under the 1206 resistor is going to be covered in insulative solder resist, so i thought the 50 mil distance would be reduced significantly?
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We were thinking page 53, column B4 of the IPC standard?
**broken link removed**
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i agree that with a 1206 size resistor (zero ohm link), and with a 0.3mm track going under it, there would be only 0.6mm clearance to the pads of the 1206 resistor.....but wth solder resist over the track, that certainly would never flash over with 300V difference. -My worry for flashover would be from the track to the inside of the 1206 resistor immediately above the track.
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We are selling to an internal market, not exporting. The customer is the government. The standards that we will work to will be the “is it going to harm anybody?” standard..and if not, then do it.
We are a small company, we cant afford a huge dept full of standards checkers. As you know , the big corporations can afford this. There are a myriad of standards, and very little help to know which particular one you should use. The standards started off being very righteous, but seem to have been jumped on by the huge corporations, to make it over complicated, in order to prevent small competitor companies, like our own, from competing with the big corporations….because we just cant be sure that we have met the right standard , and fear the lawyers of the huge corporations are upon us.