Free PCB Design Tools

IPC/WHMA-A-620 is one of the most cited cable-assembly workmanship standards, but buyers still approve suppliers with vague claims and weak evidence. This guide explains what the standard covers, what it does not cover, and what records OEM teams should verify before release.

Impedance control fails when stackup intent, fabrication notes, and test expectations are left open to interpretation. This guide shows PCB buyers what to define before release so 50 ohm, 90 ohm, and 100 ohm designs ship with fewer surprises.

REACH compliance in electronics manufacturing is an article-level evidence problem, not a checkbox. This guide explains what PCB, cable, and box-build buyers should verify before releasing product to the EU market.

Phase stability in RF cable assemblies affects calibration drift, phased-array accuracy, and repeatability after routing or service. This guide explains what changes phase, how to test it, and what buyers should put on the drawing before release.

This coaxial cable loss chart compares common cable families by frequency so buyers can estimate attenuation, avoid overspecifying thin coax, and write cleaner RF cable assembly requirements before quoting.

Choosing between Fakra and Mini-Fakra affects more than connector size. This guide compares packaging density, serviceability, RF test requirements, and sourcing tradeoffs for automotive telematics, camera, GNSS, and ADAS cable assemblies.