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Newly Released IEC 61191-4:2017 for Printed Board Assemblies

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The International Electrotechnical Commission (IEC) has released IEC 61191-4:2017. This standard pertains to “Printed board assemblies – Part 4: Sectional specification – Requirements for terminal soldered assemblies,” and is now available on the IEC webstore.

Description: “IEC 61191-4:2017 prescribes requirements for terminal soldered assemblies. The requirements pertain to those assemblies that are entirely terminal/wire interconnecting structures or to the terminal/wire portions of those assemblies that include other related technologies (i.e. surface mounting, through-hole mounting, chip mounting).

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A Dash of Maxwell’s: A Maxwell’s Equations Primer – Part Two

Maxwell’s Equations are eloquently simple yet excruciatingly complex. Their first statement by James Clerk Maxwell in 1864 heralded the beginning of the age of radio and, one could argue, the age of modern electronics.

This edition includes the following significant technical changes with respect to the previous edition: 

The requirements have been updated to be compliant with the acceptance criteria in IPC‑A-610F.


*Description from the IEC Website. 

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