---
schema_version: "secwatch.filing_event.v1"
accession: "0000889331-22-000020"
form_type: "8-K"
ticker: "LFUS"
cik: "0000889331"
company_name: "LITTELFUSE INC /DE"
filed_at: "2022-05-03T23:59:59+00:00"
generated_at: "2026-06-26T01:48:42.688578+00:00"
event_type: "earnings"
sentiment: "positive"
materiality_score: 0.8
calibrated_materiality_score: 0.8
confidence: "high"
source: SEC EDGAR
---

# Littelfuse Q1 sales $623M (+34%); adj. EPS $4.99 (+87%); acquires C&K Switches

## Summary
- Net sales $623.3M, up 34% YoY (22% organic); GAAP EPS $4.70, adj. EPS $4.99 (+87%).
- Cash from ops $51.7M, free cash flow $21.9M; GAAP operating margin 24.2%, adj. 25.6%.
- Definitive agreement to acquire C&K Switches (annual sales >$200M); closed Embed, Ltd. acquisition.
- Q2 guidance: sales $594-608M (midpoint +15% YoY, +7% organic); adj. EPS $3.95-4.11 (+18%).
- Dividend $0.53/share payable June 9, 2022 to holders of record May 26, 2022.

## SEC filing metadata
- accession: 0000889331-22-000020
- form_type: 8-K
- ticker: LFUS
- cik: 0000889331
- company_name: LITTELFUSE INC /DE
- filed_at: 2022-05-03T23:59:59+00:00
- event_type: earnings
- sentiment: positive
- materiality_score: 0.8
- calibrated_materiality_score: 0.8
- confidence: high
- sec_items: 2.02, 7.01, 9.01
- EDGAR index: https://www.sec.gov/Archives/edgar/data/889331/000088933122000020/0000889331-22-000020-index.htm
- EDGAR primary document: https://www.sec.gov/Archives/edgar/data/889331/000088933122000020/lfus-20220503.htm

## Machine-readable alternates
- HTML: https://secwatch.observer/filing/0000889331-22-000020
- JSON: https://secwatch.observer/filing/0000889331-22-000020.json
- Plain text: https://secwatch.observer/filing/0000889331-22-000020.txt

This AI-assisted summary is a reading aid. Review the linked SEC EDGAR filing before relying on any specific claim.