Littelfuse makes circuit protection, power control, and sensing components used across automotive, industrial, and electronics end markets. Its product lines include fuses, semiconductors, sensors, and protection modules that guard equipment against overcurrent, overvoltage, and harsh operating conditions. Design-in with OEMs and a broad catalog of mission-critical passive and active devices are central to its role in the supply chain.
| Quarter | Revenue | YoY % | Earnings | YoY % |
|---|---|---|---|---|
| Q2 2025 | 613.4 | — | 57.3 | 17.4% |
| Q3 2025 | 624.6 | — | 69.5 | 2.6% |
| Q4 2025 | 593.9 | — | -242.1 | -578.3% |
| Q1 2026 | 657 | — | 75.2 | 38.9% |
| Q2 2026 | 738.8 | 20.4% | 89.4 | 55.9% |
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