Definition
What is Dual sourcing / second source in electronics sourcing?
Qualifying two suppliers or two manufacturer parts for the same BOM line. A second source protects a build against allocation, EOL, and single-supplier failure, and is the standard hedge for critical parts.
Related terms
Every part on your BOM, resolved automatically.
O2 reads a bill of materials end to end: it normalizes part numbers, checks lifecycle and compliance on every line, finds alternates, and drafts the quote.