Wire Harness, Cable & Electromechanical Assembly worked example

Electrical Test Yield at 68% target electrical test pass rate: a worked example

Suppose target electrical test pass rate falls to 68%. This page works the full calculation at that level so you can see exactly which result moves and by how much. Estimate electrical test yield for wire harness, cable and electromechanical assembly using production-ready inputs so teams can track KPI performance and decide whether corrective action is needed.

The inputs for this scenario

  • Harnesses passing electrical test: 8 count (held at the documented default)
  • Harnesses electrically tested: 250 count (held at the documented default)
  • Target electrical test pass rate: 68 % (the input this scenario stresses; the baseline uses 95)

Working through the calculation

  • The calculation starts from the formula this tool documents: Electrical test yield rate = electrical test yield count ÷ total electrical test yield population × 100.
  • Electrical test yield rate works out to 3.2 % at these inputs, and this is the headline figure for the scenario.
  • Electrical test yield gap to target works out to 64.8 points at these inputs.
  • Electrical test yield count works out to 8 count at these inputs.
  • Total electrical test yield population works out to 250 count at these inputs.

How this compares with the baseline

  • Against the tool's baseline example, where target electrical test pass rate sits at 95% and the headline result is 3.2 %, this scenario lands almost exactly on the baseline at 3.2 %.
  • It computes the first-pass electrical test yield as passing units divided by total tested units times 100, plus the point gap between that yield and your target. When the numbers land here, the stressed input is the lever to work; the walkthrough above shows exactly how much each output recovers as it climbs back toward the baseline.

Results at a glance

  • Electrical test yield rate: 3.2 % (headline result)
  • Electrical test yield gap to target: 64.8 points
  • Electrical test yield count: 8 count
  • Total electrical test yield population: 250 count

Run it with your numbers

  • To rerun this with your own numbers, open the live Electrical Test Yield calculator, set target electrical test pass rate to your actual value, and adjust the remaining inputs to match your operation.

Last reviewed 2026-05-12.