Tag
How-to
- PB5 November 2026Panel temperature rise: when a sealed enclosure needs a fanHow much heat a closed steel enclosure sheds at 10, 15 and 20 K, by size and mounting, the fan airflow for the rest, and where makers' coefficients disagree.
- TQ5 November 2026First pass yield in harness assembly: how to count itHow to count FPY on an assembly line: one unit definition, first result only, rework as a fail. Crimp yield tables, rolled yield, DPMO and a one-page log.
- TQ5 November 2026AQL sampling on harnesses: what passes, when to test 100%Exact odds for AQL 1 sampling show a lot 5% defective can still pass. What the plan protects, what c=0 changes, and when to replace sampling with a 100% test.
- TM5 November 2026Crimp pull test: how many, how often, what to do on a failScored pass or fail, three clean pulls only rule out a process over 63% weak. Read the failure mode, set the interval from your quarantine limit.
- HB5 November 2026AWG to mm²: which metric wire, and what rounding down costs1 mm² replaces 18 AWG. 0.75 mm² is 8.9% short by area and can be 20% worse on data sheet resistance. AWG table, real strandings, terminal traps, a rule.
- HB5 November 2026Wire harness manufacturing: each stage and how it is checkedThe eight stages of a wire harness build, also called a wiring loom, the fault each stage can leave behind, and the check that finds it before shipping.