And, for goodness’ sake, don’t send a substitution to your manufacturer unless you’ve verified that the polarity markings are the same. Some people will mark diode polarity with a plus sign or a minus ...

Insert diodes Insert the diodes onto the PCB so that the diode is resting on the back sides of both halves. Insert them wherever you see the diode markings on the PCB. Do not insert any diodes on the ...

Ambiguity in marking is the enemy of polarized parts. Unfortunately, as I have noted in this space before (“How Should You Mark Your Diodes?” January 2015), LED manufacturers seem to conspire against ...

Attach the optocouplers and the FT232Rs to the main board. Pay attention to the orientation marks of the optocouplers: they must match the PCB's (and if assembled correctly, the DIP8 sockets') notches ...

The current PCB Marking systems built by CMS are Class I systems that can effectively mark onto all types of PCB, including FR-4, CEM-1, phenolic paper, ceramic substrates, and solder mask substrates.

Pin marking provides the orientation and polarity details to mount the components on the PCB. Certain special components like diodes, optocouplers require component symbols to be printed on silkscreen ...

The current PCB Marking systems built by CMS are Class I systems that can effectively mark onto all types of PCB, including FR-4, CEM-1, phenolic paper, ceramic substrates, and solder mask substrates.