ON Semiconductor: Customer relationships that drive the power transition thesis
ON Semiconductor (ON) sells power-management and analog semiconductor components into industrial, automotive, and communications end markets and monetizes through direct sales and distributor channels, supported by multi‑year supply agreements and broad fulfillment via third‑party distributors. The company's strategy converts product design wins into recurring revenue via long‑term supply agreements and distributor penetration, with material revenue concentration through a handful of large customers and distributors. For a concise view of ON’s commercial posture and to track customer signals, visit https://nullexposure.com/.
How ON actually captures value — not just makes chips
ON’s revenue mix and contract language make its business model predictable in structure: product design wins translate into multi‑year revenue when LTSAs are in place, while the bulk of transactional volume flows through distributors on short payment terms. The firm reported approximately $6.0 billion in revenue for 2025 and discloses remaining performance obligations under Long‑Term Supply Agreements (LTSAs) of about $7.1 billion as of December 31, 2025 — a direct read on contracted future revenue. Sales to distributors represent a majority of reported volume (roughly 54% in 2025), while direct customers account for the balance, creating a two‑tier commercial structure that amplifies both scale and counterparty concentration risk.
Key commercial signals:
- Multi‑year contracting posture: LTSAs with committed amounts generate a sizable backlog and provide visibility into future shipments and margins.
- Distributor dominance: Over half of revenue passes through distributors, with typical payment terms of 30 days, creating working capital intensity and dependence on distributor execution.
- Concentration: One distributor accounted for about 11% of revenue in 2025, underscoring tangible counterparty concentration that investors must monitor.
Explore ON’s customer intelligence and relationship flows at https://nullexposure.com/.
What management specifically called out (the relationships)
Below are the customer relationship mentions surfaced in ON’s Q4 2025 commentary and related news coverage. Each entry is a short plain‑English summary with a source reference.
GM — collaboration on electric drive systems (earnings call)
Management stated they are collaborating with GM on the development of electric drive systems, signaling a design‑level partnership in EV powertrain components. This detail came directly from ON’s Q4 2025 earnings call where V‑GaN and related power solutions were discussed.
Source: ON’s Q4 2025 earnings call (transcript, March 2026).
Dexcom — low‑power analog front end in CGMs (news coverage)
ON noted customer relationships "like Dexcom," which designed ON’s low‑power analog front end into its continuous glucose monitors (CGMs) — an example of ON’s position in medical device analog design wins. This mention was captured in a transcript republished by InsiderMonkey.
Source: InsiderMonkey coverage of ON’s Q4 2025 earnings call (published March 2026).
Dexcom — low‑power analog front end in CGMs (earnings call)
On the same Q4 2025 earnings call, management reiterated Dexcom as a customer integrating ON’s low‑power analog front end into CGMs, underscoring recurring design‑win evidence in the medical segment.
Source: ON’s Q4 2025 earnings call (March 2026).
Lite‑On — SiC/MOSFET and SiC JFET designs in BBU and PSU systems (news coverage)
Management communicated wins with Lite‑On for SiC and silicon MOSFETs and SiC JFETs across baseband unit (BBU) and power supply (PSU) systems, positioned to serve both Western and Chinese customers in AI infrastructure builds. This was reported by InsiderMonkey summarizing the call.
Source: InsiderMonkey transcript summary of the Q4 2025 call (March 2026).
Delta — secured SiC and silicon designs for BBU and PSU systems (earnings call)
ON said it secured designs with Delta for SiC and silicon MOSFETs and SiC JFETs in BBU and PSU systems, aligning supply into AI and telecom infrastructure platforms as discussed on the Q4 2025 earnings call.
Source: ON’s Q4 2025 earnings call (March 2026).
SunGro (Sungrow) — first win on a global platform (earnings call)
Management reported a first win at SunGro in their global platform, referencing a deployment that delivers higher power efficiency and high power density using ON’s power components. This remark appeared on the Q4 2025 earnings call.
Source: ON’s Q4 2025 earnings call (March 2026).
GM — V‑GaN collaboration on electric drive systems (news coverage)
Multiple outlets repeated management’s line that ON is collaborating with GM on V‑GaN for electric drive systems, emphasizing the company’s role in next‑generation EV power electronics. FXDailyReport and other recaps echoed the call’s commentary.
Source: FXDailyReport coverage and other news recaps of the Q4 2025 earnings call (March 2026).
SunGro — quoted efficiency and power density win (news coverage)
News coverage highlighted ON’s disclosure that its solutions are delivering near‑99.5% efficiency and up to 430 kW power density, with an initial win at SunGro’s global platform, pointing to a marketing‑grade performance claim tied to a customer launch.
Source: InsiderMonkey and related news summaries of the Q4 2025 call (March 2026).
Great Wall — designs secured for BBU and PSU systems (earnings call)
ON confirmed secured designs with Great Wall for SiC and silicon MOSFETs and SiC JFETs to support both Western and Chinese customer deployments in BBU and PSU applications, as stated in the Q4 2025 call.
Source: ON’s Q4 2025 earnings call (March 2026).
Lite‑On — secured designs for AI/telecom infrastructure (earnings call)
In addition to the news item, ON reiterated on the call that Lite‑On has designs for ON’s SiC and silicon MOSFET and SiC JFET products, reinforcing a multi‑channel engagement narrative.
Source: ON’s Q4 2025 earnings call (March 2026).
General Motors — V‑GaN EV drive collaboration (news coverage)
News transcripts repeated the GM collaboration line, stating that ON is already working with General Motors on development of electric drive systems leveraging V‑GaN technology, a point emphasized across coverage.
Source: InsiderMonkey and FXDailyReport recaps of the Q4 2025 earnings call (March 2026).
Delta — SiC and silicon MOSFET/JFET designs noted in coverage (news)
Media summaries of the call again highlighted design wins with Delta for SiC and silicon MOSFETs and JFETs in BBU and PSU systems, reflecting the same remark ON made on the earnings call about infrastructure customers.
Source: InsiderMonkey coverage of ON’s Q4 2025 earnings call (March 2026).
Great Wall — referenced in news summaries as a design win (news)
News recaps also listed Great Wall among customers with secured designs for SiC and silicon MOSFETs and SiC JFETs, consistent with ON’s public remarks on the call.
Source: InsiderMonkey summary of the Q4 2025 earnings call (March 2026).
What these relationships imply for investors
Collectively, the call and subsequent coverage show ON is executing a two‑pronged strategy: design‑win commercialization in strategic verticals (EVs, medical, AI/telecom power) while scaling volume through distributors. The contract and revenue disclosures imply a mix of long‑term contracted backlog (LTSAs) and short‑term distributor flows:
- Contracting posture: The existence of LTSAs and a $7.1 billion remaining performance obligation is a substantial forward revenue indicator, consistent with a supplier that converts design wins into committed shipments.
- Concentration and criticality: Distributor revenue dominance (≈54%) plus a single distributor representing ≈11% of total revenue create meaningful counterparty concentration and execution risk, even as direct enterprise engagements (GM, Dexcom, SunGro, Delta, Lite‑On, Great Wall) signal high‑value design wins.
- Maturity and role: Management’s language indicates mature relationships and renewable sales agreements, not ad‑hoc spot transactions, which supports revenue durability but requires monitoring of renewal economics and pricing.
If you want a focused tracker of relationship momentum and how design wins translate into booked revenue, review ON’s customer signals and contract detail at https://nullexposure.com/.
Bottom line and next steps for investors
ON’s Q4 2025 commentary and media recaps provide clear evidence of strategic design wins across EV, medical, and AI infrastructure customers, backed by a meaningful LTSA backlog and concentrated distributor flows. The combination supports a growth narrative anchored in product leadership, while concentration via distributors and significant single‑customer exposure remain the primary commercial risks.
For investors and operators who need up‑to‑date customer relationship intelligence and analysis, start with the company overview and relationship tracker at https://nullexposure.com/.