Electronic Components Data Providers: Quotes, Catalogs and CAD in One Slice · Head-to-head
Nexar API (Octopart) vs LCSC Electronics Catalog
Which electronic components data providers: quotes, catalogs and cad in one slice data fits your job: Nexar API (Octopart), or LCSC Electronics Catalog. API, files, or your warehouse. Daily, weekly, or hourly.
Nexar API (Octopart)
LCSC Electronics Catalog
Where the fields line up
No shared field names. These two answer different questions.
| Field | Nexar API (Octopart) | LCSC Electronics Catalog |
|---|---|---|
mpn | documented | not in this set |
shortDescription | documented | not in this set |
manufacturer.name | documented | not in this set |
category.name | documented | not in this set |
sellers[].company.name | documented | not in this set |
offers[].inventoryLevel | documented | not in this set |
offers[].prices[] | documented | not in this set |
offers[].moq | documented | not in this set |
offers[].packaging | documented | not in this set |
medianPrice1000.price | documented | not in this set |
specs[].attribute.shortname | documented | not in this set |
bestDatasheet.url | documented | not in this set |
Coverage, side by side
| Nexar API (Octopart) | LCSC Electronics Catalog | |
|---|---|---|
| Geographic | Global distributor coverage with region-selectable queries and multi-currency pricing | Global shipping from China with localized storefronts in English, German, Spanish, French, Italian, Korean, Polish, Portuguese and zh-TW |
| Granularity | Per part: one record per MPN with nested per-seller, per-offer price-break detail | One product record per LCSC part code with per-warehouse stock rows and multi-break price ladders |
What each contains
Pick by fit, not by loyalty.
| Nexar API (Octopart) | LCSC Electronics Catalog | |
|---|---|---|
| Geography | Global distributor coverage with region-selectable queries and multi-currency pricing | Global shipping from China with localized storefronts in English, German, Spanish, French, Italian, Korean, Polish, Portuguese and zh-TW |
| Seller model | Aggregation - many distributors quoted per part, authorized and unauthorized alike | Single distributor's own shelf - one seller, its warehouses, its buying rules |
| Granularity | Per part: one record per MPN with nested per-seller, per-offer price-break detail | One product record per LCSC part code with per-warehouse stock rows and multi-break price ladders |
| Scale | Millions of components at Octopart scale; the supply layer behind 9,000-plus registered organizations | Approximately eight million product records per language across sixteen category families |
| Assortment skew | Mainstream global distribution, weighted toward what Western buyers already source | Skews toward Asian domestic brands underrepresented in US and EU catalogs |
| Currencies | Multi-currency pricing across sellers | USD and CNY ladders side by side, plus reel pricing and discount tiers |
| Field dictionary | 13 verified fields spanning identifiers, offers, price breaks, specs, datasheets and lead time | 13 verified fields spanning codes, brands, categories, packages, stock, ladders, parameters and RoHS flags |
Or take both in one feed
They stack into the classic sourcing workflow: normalize the bill of materials through the aggregator, then check the Asian shelf wherever the Western catalogs run dry or run expensive. Join on the manufacturer part number deliberately - LCSC's productModel is the MPN, its own C-code is not - and expect friction in two places. Package suffixes matter, because an STM32F103CBT6 in an LQFP-48 and a different-package variant are separate buying decisions even when the base number matches. Currency matters too: reconcile the CNY ladder before declaring a cross-catalog saving, since freight and breakage eat thin spreads fast.
Or take both in one feed.
API, files, or your warehouse. Daily, weekly, or hourly.
Fair questions
Which has richer pricing data?
Richer in different directions. LCSC returns USD and CNY ladders with explicit thresholds, reel pricing, discount rates and minimum-buy rules, ideal for modeling an actual purchase.
Can the two be joined part-for-part?
Mostly, via the manufacturer part number: LCSC's productModel field is the MPN that Octopart keys on. Watch package variants, which sit as separate decisions despite shared base numbers, and manufacturer naming differences between catalogs. Treat mismatches as a package or naming issue before treating them as missing data.
Which one should a sourcing analyst sample first?
Sample both, pick by fit. Teams doing both keep the two in rotation and join on MPN.