Definition
What is SOT-23 in electronics sourcing?
A common small surface-mount package with three to six leads, used for transistors and small ICs. Package codes like SOT-23 are part of the orderable part number and decide which alternates fit the footprint.
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.