Ultra Librarian CAD Model Library

It is the PCB design world's shared parts shelf. Ultra Librarian - built by EMA Design Automation and now owned by Cadence - operates what it describes as the world's largest verified CAD library: more than 16 million schematic symbols, PCB footprints and 3D models, spanning manufacturers worldwide and exportable to over 30 CAD tool formats. Search runs on the manufacturer part number, and every result row carries the commerce context a parts database usually hides behind clicks: manufacturer, catalog description, indicative price, stock status, RoHS and lead-status compliance flags, and a Models Available indicator that says whether CAD assets exist for that part at all.

Two things separate the corpus from crowd-sourced symbol sites. Content arrives through direct manufacturer partnerships, so model metadata is manufacturer-validated rather than user-uploaded; and the same rows expose facet filters for Manufacturers, Distributors and CAD model type (symbol, footprint, 3D), so a query narrows along three axes at once. Adjacent products - Intelligent Reference Designs, the Virtual Librarian Service, UltraBOM and CAD hosting - share the same validated-parts spine.

One row, captured whole during the August 2026 research pass - an Espressif Wi-Fi microcontroller that exercises every lane of the schema at once:

manufacturer        Espressif Systems
mpn                 ESP8266EX
description         IC ESP8266, SDIO 2.0, SPI, UART, QFN32, RF switch,
                    balun, 24dBm PA, DCXO, PMU
price               $1.227
availability        In Stock
lead_free           true
rohs_compliant      true
models_available    Models Available

distributor_quotes  TME      ($1.41)
                    Conrad   ($1.26449)
                    DigiKey  ($1.6)
                    Mouser   ($1.6)

Read it and the shape of the whole corpus appears. The headline price of $1.227 sits beside four distributor quotes running $1.26449 to $1.6, so the spread between the cheapest and dearest quote for one part is visible on a single line. Compliance flags arrive as explicit boolean columns rather than badge images, and the Models Available indicator separates parts that have CAD assets from parts that do not before any geometry is involved. Datadory ships rows exactly this wide, with the nested quote array flattened so each distributor quote joins against your price files.

Nine documented fields carry every result row, each definition checked against live search output during the August 2026 research pass. The identifying spine is manufacturer plus mpn, which is why joins against a bill of materials or an approved-vendor list hold without fuzzy matching. price is an indicative headline figure with the per-distributor quotes carried beneath it; availability derives from distributor feeds; and the two compliance columns turn what is normally a datasheet hunt into a filter.

Three more attributes ride along on subsets of rows and therefore fold under additional fields on request: the facet counts behind the source's filter rail, per-part datasheet linkage, and the model-type breakdown saying which of symbol, footprint and 3D geometry attach to a given MPN. Name the ones your workflow needs when you request a sample.

Geography - a global library assembled from worldwide manufacturer partnerships rather than any single region's catalog. Observed pricing quotes US dollars drawn from international distributors - TME, Conrad, DigiKey and Mouser all appear in the captured row - so one part can carry a four-way geographic price spread on a single record.

Temporal - a continuously curated corpus fed by the manufacturer partnership channel; the snapshot behind this page was taken in August 2026.

Granularity - one record per manufacturer part number, each carrying its symbol, footprint and 3D model artifacts plus an export-format choice spanning 30-plus CAD tools. One scale caveat stated plainly: the 16-million figure counts model files, not distinct MPNs, because a single part can carry several model types.

API, files, or your warehouse. Daily, weekly, or hourly.

Your cadence is your call regardless of how the upstream library moves - a weekly warehouse load keeps a PLM system current between board revisions, and nobody has to babysit the pipeline. Every delivery ships the complete field dictionary above, the sample rows and a coverage profile cut to the part families you nominate.

• Hardware engineering and CAD library teams populate and standardize symbol, footprint and 3D model libraries across toolchains, so every designer draws from one validated set instead of hand-built variants.
• Component and compliance engineers screen the RoHS and lead-status columns across candidate parts before qualification, turning a document chase into a query.
• Procurement and supply-chain analysts pair indicative prices, stock status and the distributor quote spread against lifecycle-risk sets, catching parts whose economics move before their end-of-life notices do.
• Data science teams train part-matching and BOM-cleansing models on MPN-keyed rows where manufacturer, description and compliance attributes arrive as typed columns rather than loose prose.

Developers and builders get an MPN-keyed schema that drops straight into part-search and BOM tooling without a parsing project; see developers builders use cases. Competitive intelligence and product teams benchmark manufacturer participation and distributor presence from the facet structure; see competitive intel product teams use cases. Sales growth teams selling into electronics OEMs read the same rows as an account map of who makes and who stocks what; see sales growth teams use cases. Data scientists get typed columns suited to matching and classification work; see data scientists use cases.

Within electronic components data, this record owns geometry: will the part drop into your board file tonight, in your tool's format, with manufacturer-validated metadata behind it. The neighbors own different jobs. SnapEDA Parts Library is the nearest rival - roughly 10 million parts across about 20 tools against this corpus's 16 million-plus across 30-plus - and most hardware teams run both rather than choose. FindChips Aggregated Price & Inventory Search consolidates offers across roughly 41,473 indexed MPN search URLs, answering what a part costs today rather than how it lands in CAD. Nexar API (Octopart) returns nested per-seller price breaks and carries the slice's only 9/10 Datadory score. LCSC Electronics Catalog and TME Electronic Components Catalog & API depth the distributor side. If the question is board-ready models with commerce context attached, this is the set that answers it.

Three things worth settling upfront.

First, model count is not part count. The 16-million figure totals model files, and the source does not break out distinct-MPN coverage; tell us your part families and the sample reports distinct-part coverage for exactly those.

Second, pick one price convention and hold it. The headline price is a sampled unit figure with per-distributor quotes beneath - the captured row spans $1.26449 to $1.6 across four distributors - so analytics that mix conventions see phantom spreads. We deliver the quote array flattened so you can pin one distributor per pipeline.

Third, the nine-column core ships standard. Facet counts, datasheet linkage and the per-MPN model-type split are confirmed present in the corpus but fold under additional fields on request; name them with your sample. On quality: Datadory scores this record 8/10 on its documentation-and-reliability rubric, above the 7.81 catalog mean, with all nine definitions marked verified.