What's the difference between Littelfuse and onsemi?

Littelfuse is a niche in Power Semiconductors (incl. SiC, GaN) based in United States; onsemi is a major in Integrated Device Manufacturer based in United States. Both operate in the Analog, Power, RF segment.

Who are Littelfuse's and onsemi's suppliers?

wafergraph tracks 0 suppliers for Littelfuse and 3 for onsemi; onsemi's include Wolfspeed, Entegris, Diodes Incorporated.

Littelfuse vs onsemi

Littelfuse's primary segment is Power Semiconductors (incl. SiC, GaN); onsemi's is Integrated Device Manufacturer. onsemi is larger by market cap ($30.9B vs $10.8B). onsemi reports higher tracked revenue ($6.0B vs $1.2B).

See all 87 Analog, Power, RF companies →

Track the chain

What moved in the semiconductor supply chain — This Week in the Chain, the free weekly wafergraph briefing.

Subscribe to the free weekly briefing →

Free · no login · 615 companies, updated weekly

Side-by-side

	Littelfuse	onsemi
Market cap	$10.8B	$30.9B
Revenue	$1.2B (FY2017)	$6.0B (FY2025)
Primary segment	Power Semiconductors (incl. SiC, GaN)	Integrated Device Manufacturer
Market position	niche	major
Country	United States	United States
Tracked suppliers	0	3
Tracked customers	1	2
Chokepoint / criticality	50/100	68/100

Market caps/revenue from the wafergraph dataset · data as of 2026-10-09. Criticality is a graph-derived chokepoint score (0–100). Coverage is partial; "Unpriced" means no reliable market cap.

How Littelfuse and onsemi compare

Size: onsemi is the larger company by market cap.
Revenue: onsemi reports higher tracked revenue.
Supply-chain criticality: onsemi has the higher chokepoint score (68/100 vs 50/100).
Footprint: Littelfuse (United States) vs onsemi (United States).

Company hubs

Littelfuse · onsemi · Analog, Power, RF segment

Open the interactive comparison tool →

Cite as: wafergraph, “Littelfuse vs onsemi”, https://wafergraph.com/compare/littelfuse-vs-onsemi (data as of 2026-10-09).

Frequently asked questions3

Is Littelfuse bigger than onsemi?: onsemi is larger by market cap ($30.9B vs $10.8B).
What's the difference between Littelfuse and onsemi?: Littelfuse is a niche in Power Semiconductors (incl. SiC, GaN) based in United States; onsemi is a major in Integrated Device Manufacturer based in United States. Both operate in the Analog, Power, RF segment.
Who are Littelfuse's and onsemi's suppliers?: wafergraph tracks 0 suppliers for Littelfuse and 3 for onsemi; onsemi's include Wolfspeed, Entegris, Diodes Incorporated.