Electronics Manufacturing worked example

ICT Test Time at 13% debug and retest allowance: a worked example

Suppose debug and retest allowance falls to 13%. This page works the full calculation at that level so you can see exactly which result moves and by how much. Estimate in-circuit test minutes from boards to test, tested-board rate, and debug/retest allowance.

The inputs for this scenario

  • Boards requiring ICT: 850 boards (held at the documented default)
  • ICT tested-board rate: 5.5 boards / min (held at the documented default)
  • Debug and retest allowance: 13 % (the input this scenario stresses; the baseline uses 18)

Working through the calculation

  • The calculation starts from the formula this tool documents: Base ICT cycle time = boards requiring ICT รท ICT tested-board rate.
  • Estimated ICT test time works out to 175 min at these inputs, and this is the headline figure for the scenario.
  • Base ICT cycle time works out to 155 min at these inputs.
  • Debug and retest allowance works out to 13 % at these inputs.
  • ICT tested-board rate works out to 5.5 boards / min at these inputs.

How this compares with the baseline

  • Against the tool's baseline example, where debug and retest allowance sits at 18% and the headline result is 182 min, this scenario comes in 4.24% below the baseline at 175 min.
  • It estimates total ICT test time for a batch by dividing boards by the tested-board rate and inflating for a debug and retest allowance. 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

  • Estimated ICT test time: 175 min (headline result)
  • Base ICT cycle time: 155 min
  • Debug and retest allowance: 13 %
  • ICT tested-board rate: 5.5 boards / min

Run it with your numbers

  • To rerun this with your own numbers, open the live ICT Test Time calculator, set debug and retest allowance to your actual value, and adjust the remaining inputs to match your operation.

Last reviewed 2026-05-12.