Circuit and firmware implications
Compare package, supply voltage, current demand, thermal requirements and supporting circuitry. A lower unit price may require more board area, additional parts or firmware changes.
Engineering decisions
Component selection & sourcing
Component selection. Informed sourcing.
Compare technical suitability, availability and the implications of substitution before committing parts to a design.
Component evaluation and sourcing review
- Electrical requirements
- Availability and lead times
- Approved alternatives
Evaluate the effect on the complete design
Component selection starts with the product's interfaces, power, space and software requirements. Sourcing review identifies choices that may constrain a build, with a record of why each part was selected and what a replacement would require.
Dated availability checks
Check manufacturer status, supplier listings, lead times and minimum quantities when defining the project and again before purchasing or building. Record the date; a review cannot reserve stock.
Substitution approval
Compare electrical limits, timing, package details and software compatibility as well as pinout. Keep alternatives marked as candidates until the relevant design and validation checks are complete.
Engineering process
Project
process.
- 01
Identify critical components
Prioritise controllers, power devices, sensors and connectors whose replacement would significantly affect the design or schedule.
- 02
Define selection criteria
Separate mandatory parameters from preferences. Include the physical and firmware implications of each candidate.
- 03
Review supply constraints
Record sources, dates and quantity assumptions. Flag single-source or uncertain choices before committing to a build.
- 04
Document approved substitutions
List approved alternatives and the checks required for further changes. Keep the component list aligned with the design revision.
Depending on the agreed scope
Project
deliverables.
- Component comparisons against product requirements
- Dated availability and sourcing assumptions
- Separate lists of candidate and approved alternatives
- A substitution impact checklist
Purchasing, supplier qualification, commercial negotiations and stock commitments are separate responsibilities. AUBRIX does not claim guaranteed availability or supplier partnerships.
Project experience
Related
projects.
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Project details
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Project detailsTalk engineering
Which component choices could constrain your design or build?
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