Appliance Electronics & Control Boards calculator
Component Attrition Cost Calculator Calculator
Component attrition covers lost, damaged, expired, or setup-consumed parts during PCB assembly. This calculator estimates the material cost impact for appliance control boards, including relays, connectors, sensors, passives, ICs, displays, and power components.
What this calculator does
- Estimate appliance control board component attrition cost from component placements, average component cost, attrition rate, and fixed shortage handling cost.
- a procurement lead or estimator needs to include realistic component attrition in a control board quote or production plan
- Returns a material cost allowance for expected PCB component attrition in the selected appliance board build.
Formula used
- Variable component attrition cost = components placed or issued × average component cost × expected component attrition
- Total component attrition cost = variable attrition cost + shortage handling or excess buy cost
Inputs explained
- Components placed or issued: undefined
- Average component cost: undefined
- Expected component attrition: undefined
- Shortage handling or excess buy cost: undefined
How to use the result
- Use it for BOM costing, quote margin, component procurement, NPI builds, and high-mix appliance board production.
- Actual attrition varies by package size, feeder setup, moisture sensitivity, manual insertion, obsolescence, supplier packaging, and engineering changes.
Common questions
- What parts should be included? Include SMT, through-hole, connectors, relays, sensors, displays, power components, and any parts issued to the production order.
- How do I choose an attrition percentage? Use historical feeder loss, setup scrap, kitting variance, and component handling data for the same board family or package mix.
- What is shortage handling cost? It covers expedite fees, excess buy, split reel charges, line-down handling, or purchasing effort caused by attrition-driven shortages.
- How can I use the result? Use it to set buy quantities, protect quote margin, review high-cost attrition drivers, and compare supplier packaging options.
Last reviewed 2026-05-12.