Lasers, Optics & Photonics Manufacturing worked example

Photonics Warranty Exposure at 2.16% expected warranty failure rate: a worked example

This worked example runs the photonics warranty exposure numbers for a tougher week than the baseline: 2.16% expected warranty failure rate instead of the typical 3%. Estimate total warranty cost exposure for shipped photonics products (laser modules, fiber transceivers, sensors) by combining units in warranty, expected field failure rate, average repair or replacement cost, and fixed warranty program overhead.

The inputs for this scenario

  • Units under active warranty: 2,000 units (held at the documented default)
  • Average repair or replacement cost: 450 $ / failure (held at the documented default)
  • Expected warranty failure rate: 2.16 % (the input this scenario stresses; the baseline uses 3)
  • Fixed warranty program overhead: 8,000 $ (held at the documented default)

Working through the calculation

  • The calculation starts from the formula this tool documents: Variable warranty cost = units in warranty x repair cost x failure rate.
  • Total photonics warranty exposure works out to 27,440 $ at these inputs, and this is the headline figure for the scenario.
  • Warranty cost per unit shipped works out to 13.72 $ / piece at these inputs.
  • Variable warranty cost (expected claims) works out to 19,440 $ at these inputs.
  • Fixed warranty program overhead works out to 8,000 $ at these inputs.

How this compares with the baseline

  • Against the tool's baseline example, where expected warranty failure rate sits at 3% and the headline result is 35,000 $, this scenario comes in 21.6% below the baseline at 27,440 $.
  • Use it when setting a warranty reserve, pricing an extended-warranty offer, or building the business case for a reliability fix on a fielded laser or optical product. 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

  • Total photonics warranty exposure: 27,440 $ (headline result)
  • Warranty cost per unit shipped: 13.72 $ / piece
  • Variable warranty cost (expected claims): 19,440 $
  • Fixed warranty program overhead: 8,000 $

Run it with your numbers

  • To rerun this with your own numbers, open the live Photonics Warranty Exposure calculator, set expected warranty failure rate to your actual value, and adjust the remaining inputs to match your operation.

Last reviewed 2026-05-12.