Company overview
What does LITTELFUSE INC /DE do?
LITTELFUSE INC /DE (LFUS) is a U.S. SEC registrant. The Commission classifies the issuer under SIC 3613 (Switchgear & Switchboard Apparatus).
What does LITTELFUSE INC /DE do?
LITTELFUSE INC /DE (LFUS) is a U.S. SEC registrant. The Commission classifies the issuer under SIC 3613 (Switchgear & Switchboard Apparatus).
What industry is LITTELFUSE INC /DE in?
Industrials · Switchgear & Switchboard Apparatus
What was LITTELFUSE INC /DE's latest reported revenue?
$201M for Q3 2013, from 10-Q filed Nov 1, 2013.
What changed in the latest comparable period?
Revenue increased +16.4% ($172.7M to $201.0M; Q3 2012 vs Q3 2013).
Business model (from the public record)
Belvedere describes the business using the issuer’s SEC classification and the company description extracted from public filings. Segment mix, customer identity, and recurring-versus-transactional revenue are shown only when those facts are identified in the filing extract—not inferred.
Industrials · Switchgear & Switchboard Apparatus · United States
Financial profile
- Revenue
- $201M 10-Q · Q3 2013 · Filed Nov 1, 2013
- Revenue growth YoY
- +16.4% Belvedere calculation · 10-Q · Q3 2013 · Filed Nov 1, 2013
- Gross margin
- +40.3% Belvedere calculation · 10-K · Q3 2013 · Filed Feb 24, 2015
- Operating margin
- +18.7% Belvedere calculation · 10-K · Q3 2013 · Filed Feb 24, 2015
- Net income
- $27M 10-K · Q3 2013 · Filed Feb 24, 2015
- Operating cash flow
- — Not identified in latest matched XBRL period
- Capex
- — Not identified in latest matched XBRL period
- Belvedere FCF
- — Not identified in latest matched XBRL period
- FCF margin
- — Not identified in latest matched XBRL period
- Cash
- $481.7M 10-Q · Mar 28, 2026 · Filed May 6, 2026
- Debt
- $631.5M Belvedere calculation · 10-Q · Mar 28, 2026 · Filed May 6, 2026
- Net debt
- $149.8M Belvedere calculation · 10-Q · Mar 28, 2026 · Filed May 6, 2026
- Shares
- — Not identified in latest matched XBRL period
Balance sheet snapshot
Cash $481.7M. Identified debt $631.5M. Net debt $149.8M. Missing debt tags are not treated as a zero-debt capital structure.
Financial information is derived from public filings and other identified sources. Belvedere calculations may differ from company-defined non-GAAP measures. See methodology and source notes. Valuation multiples are omitted because a licensed market-data provider is not configured.
Latest filings
| Form | Filed | Period | Accession | Source |
|---|---|---|---|---|
| 8-K | Sep 17, 2026 | Sep 15, 2026 | 0000889331-26-000014 | SEC |
| 8-K | Sep 16, 2026 | Sep 10, 2026 | 0000889331-26-000012 | SEC |
| 4 | Sep 8, 2026 | Sep 3, 2026 | 0001186518-26-000026 | SEC |
| 4 | Sep 8, 2026 | Sep 3, 2026 | 0001614437-26-000010 | SEC |
| 4 | Sep 8, 2026 | Sep 3, 2026 | 0001525175-26-000012 | SEC |
| 4 | Sep 8, 2026 | Sep 3, 2026 | 0002010494-26-000014 | SEC |
| 4 | Sep 8, 2026 | Sep 3, 2026 | 0001722163-26-000007 | SEC |
| 4 | Sep 8, 2026 | Sep 3, 2026 | 0001807380-26-000010 | SEC |
| 4 | Sep 8, 2026 | Sep 3, 2026 | 0001872974-26-000021 | SEC |
| 4 | Sep 8, 2026 | Sep 3, 2026 | 0001217168-26-000009 | SEC |
| 4 | Sep 8, 2026 | Sep 3, 2026 | 0002055015-26-000017 | SEC |
| 4 | Sep 8, 2026 | Sep 3, 2026 | 0001411282-26-000022 | SEC |
| 4 | Sep 8, 2026 | Sep 3, 2026 | 0002115144-26-000012 | SEC |
| 4 | Sep 8, 2026 | Sep 3, 2026 | 0001685837-26-000013 | SEC |
| 4 | Sep 8, 2026 | Sep 3, 2026 | 0001526287-26-000014 | SEC |
| 4 | Sep 8, 2026 | Sep 3, 2026 | 0001070847-26-000012 | SEC |
| 4 | Sep 8, 2026 | Sep 3, 2026 | 0001201094-26-000010 | SEC |
| 4 | Sep 8, 2026 | Sep 3, 2026 | 0002081396-26-000010 | SEC |
What changed
Each line is an arithmetic comparison of sourced facts. It is not a thesis.
Research view
Belvedere has not published an initiation or update on LITTELFUSE INC /DE. Universe inclusion is not a rating, a forecast, or coverage in the sell-side sense.
Research Radar
| Kind | Change | Explanation | Source | Date |
|---|---|---|---|---|
| Cash | $481.7M | Cash and cash equivalents were $481.7M as of the latest reported balance-sheet date. | 10-Q · CashAndCashEquivalentsAtCarryingValue | May 6, 2026 |
| Margin change | $0.403 | Reported gross margin was +40.3% in the latest comparable period. | 10-K · BelvedereGrossMargin | Feb 24, 2015 |
| Revenue | +16.4% | Revenue increased +16.4% ($172.7M to $201.0M; Q3 2012 vs Q3 2013). | 10-Q · Revenues | Nov 1, 2013 |
| Revenue acceleration | +9.6 pp | Quarterly revenue YoY growth moved from +6.8% to +16.4% (+9.6 percentage points). | 10-Q · BelvedereRevenueGrowthYoY | Nov 1, 2013 |
Rankings
- Fastest-Growing Companies in the Belvedere Universe · rank 35 · +16.4%
- Revenue Growth Acceleration · rank 18 · 9.6 pp
- Belvedere Undercoverage Screen · rank 37 · 40
- Industrial Companies by Revenue Growth · rank 7 · +16.4%
Industry context
LITTELFUSE INC /DE is mapped to Industrials (Switchgear & Switchboard Apparatus) from SIC metadata on the SEC submission. Mapping is a classification convenience, not a claim that every peer is economically comparable.
Belvedere Research Profile
This measures researchable information characteristics. It is not investment advice, a credit rating, or a buy/sell/hold recommendation.
Presence of core income-statement, cash-flow and balance-sheet concepts in SEC XBRL.
Comparable-period revenue history and operating-result availability.
Availability of margin, cash-flow and per-share concepts used in screening.
SEC periodic reports, current reports, proxy statement and website identified in submissions.
Distinct filing years in the current archive window plus comparable prior-period revenue.
Risks
Belvedere does not manufacture generic risk language. Material risks are those the issuer discloses in its periodic reports, particularly Item 1A of the latest Form 10-K.
A Form 10-K was not present in the current filing window.
Sources
- Source
- U.S. Securities and Exchange Commission
- Form
- 10-Q
- Period
- Q3 2013
- Filed
- Nov 1, 2013
- Accession
- 0001437749-13-013732
- Concept
- Revenues
- Source
- U.S. Securities and Exchange Commission
- Form
- 10-Q
- Period
- Q3 2013
- Filed
- Nov 1, 2013
- Accession
- 0001437749-13-013732
- Concept
- BelvedereRevenueGrowthYoY
(Revenues 2013-09-28 / Revenues 2012-09-29) - 1
View filing- Source
- U.S. Securities and Exchange Commission
- Form
- 10-Q
- Period
- Mar 28, 2026
- Filed
- May 6, 2026
- Accession
- 0001628280-26-031041
- Concept
- CashAndCashEquivalentsAtCarryingValue
Disclosure
Belvedere Research publishes informational analysis. Nothing on this site is investment advice, an offer, or a solicitation to buy or sell any security.
This page is a company intelligence / data profile. It is not a research report unless a dated note is attached above. Rankings appearing here are independent of any issuer compensation.
Frequently asked questions
- What does LITTELFUSE INC /DE do?
- LITTELFUSE INC /DE (LFUS) is a U.S. SEC registrant. The Commission classifies the issuer under SIC 3613 (Switchgear & Switchboard Apparatus).
- What industry is LITTELFUSE INC /DE in?
- LITTELFUSE INC /DE is classified in Industrials (Switchgear & Switchboard Apparatus).
- When did LITTELFUSE INC /DE last file a periodic report?
- LITTELFUSE INC /DE last filed a 8-K on Sep 17, 2026 (accession 0000889331-26-000014).
- What was LITTELFUSE INC /DE's latest revenue?
- $201M for Q3 2013, sourced from 10-Q filed Nov 1, 2013.
- Does Belvedere cover LITTELFUSE INC /DE?
- LITTELFUSE INC /DE is in the Belvedere universe. Presence in the universe is not the same as active initiation coverage.