Product Feature
Separate single-source parts with one qualified manufacturer from sole-source parts with one active distributor, then trace the dependency through sub-tier to the foundry and substrate that feed it.
Overview
Concentration risk rarely sits where you expect it. A part can show several distributors and still trace back to a single wafer foundry or substrate supplier that every line depends on. Z2 distinguishes single-source parts, those with one qualified manufacturer, from sole-source parts, those with one active distributor, then maps the dependency down through sub-tier manufacturing to the foundry and substrate level. You see the hidden concentration before an obsolescence event or a regional disruption turns it into a stopped line.
These two risks look alike on a spreadsheet and fail very differently. A single-source part has one qualified manufacturer on your approved vendor list, so a discontinuation or capacity loss at that one manufacturer leaves no in-spec replacement. A sole-source part may have several qualified manufacturers but only one active distributor carrying stock, so a channel exit or an allocation event cuts off supply even though the part is still in production. Z2 flags each case separately on the BOM, so your sourcing team chases a second distributor for one and a qualified alternate or design substitution for the other.
Most supply chain tools stop at the manufacturer that puts its name on the part. Z2 extends concentration analysis past Tier 1 through sub-tier manufacturing to the foundry that fabricates the die and the substrate supplier that packages it. That is where the true single points of failure hide: ten different part numbers from four manufacturers can all trace back to one foundry in a single region. When you map part-to-site this deep, a country-of-origin shock or a fab fire stops being a surprise.
The concentration report quantifies the exposure instead of describing it. It shows the percent of BOM value that rests on any single supplier, manufacturer site, foundry, or distributor, so you can rank your dependencies by what they actually put at risk. Every flagged part carries recommended mitigation paths next to the finding: alternate sourcing options that are already qualified and design substitution candidates graded for form, fit, and function. You move from knowing a part is concentrated to acting on it in the same view.
Sole-source and single-source analysis is one capability inside Part Risk Manager, Z2's component risk platform. It shares the same data layer as lifecycle forecasting, compliance screening, and supplier risk, so a concentrated part is also scored for obsolescence and country-of-origin exposure in the same record. That integration matters because a single-source part nearing end-of-life is a far sharper risk than either signal alone, and you see them together rather than reconciling two reports.
A feature of
Sole-Source & Single-Source Risk is one capability inside Z2 Part Risk Manager, the industry's largest component intelligence platform. Search and score 1B+ parts across obsolescence, compliance, sourcing, and supplier risk, all in one view.
Common Questions
A single-source part has only one qualified manufacturer, so a discontinuation leaves no in-spec replacement. A sole-source part may have several qualified manufacturers but only one active distributor carrying it, so a channel exit cuts off supply even while the part stays in production.
Z2 extends concentration analysis past the Tier 1 manufacturer through sub-tier manufacturing to the foundry that fabricates the die and the substrate supplier that packages it, exposing dependencies where many parts share one upstream site or region.
Yes. Each flagged part carries recommended mitigation paths: qualified alternate sourcing options and design substitution candidates graded for form, fit, and function, shown next to the percent of BOM value at risk.
