Electronics Repair, Refurbishment & Depot Operations worked example

Burn-In Test Capacity at 65% expected burn-in rack uptime: a worked example in electronics repair, refurbishment & depot operations

This worked example runs the burn-in test capacity numbers for a tougher week than the baseline: 65% expected burn-in rack uptime instead of the typical 90%. Estimate good burn-in test capacity for repaired or refurbished electronics after rack slots, test cycles, uptime, and final pass yield are considered.

The inputs for this scenario

  • Units loaded per burn-in cycle: 4 units / cycle (held at the documented default)
  • Available burn-in cycles: 480 cycles (held at the documented default)
  • Expected burn-in rack uptime: 65 % (the input this scenario stresses; the baseline uses 90)
  • Expected burn-in pass yield: 97 % (held at the documented default)

Working through the calculation

  • The calculation starts from the formula this tool documents: Gross burn-in capacity = units loaded per burn-in cycle × available burn-in cycles.
  • Good burn-in test capacity works out to 1,211 units / shift at these inputs, and this is the headline figure for the scenario.
  • Gross burn-in capacity works out to 1,920 units / shift at these inputs.
  • Burn-in rack downtime loss works out to 672 units / shift at these inputs.
  • Burn-in yield loss works out to 37.44 units / shift at these inputs.

How this compares with the baseline

  • Against the tool's baseline example, where expected burn-in rack uptime sits at 90% and the headline result is 1,676 units / shift, this scenario comes in 27.78% below the baseline at 1,211 units / shift.
  • Use it to size burn-in racks against repair output, plan shift capacity, or check whether burn-in is gating shipments. A result at this level usually justifies acting on the stressed input before touching anything else, because every other figure in the table is downstream of it.

Results at a glance

  • Good burn-in test capacity: 1,211 units / shift (headline result)
  • Gross burn-in capacity: 1,920 units / shift
  • Burn-in rack downtime loss: 672 units / shift
  • Burn-in yield loss: 37.44 units / shift

Run it with your numbers

  • To rerun this with your own numbers, open the live Burn-In Test Capacity calculator, set expected burn-in rack uptime to your actual value, and adjust the remaining inputs to match your operation.

Last reviewed 2026-05-12.