Exhibit 99.1 FOR IMMEDIATE RELEASE David Kelley 224-727-2535 dkelley@littelfuse.com LITTELFUSE REPORTS FIRST QUARTER RESULTS FOR 2024 Based on current market conditions, for the second quarter the company expects, • Net sales in the range of $525 - $555 million, adjusted diluted EPS in the range of $1.65 - $1.85 and an adjusted effective tax rate of approximately 23% *Littelfuse provides guidance on a non-GAAP (adjusted) basis. GAAP items excluded from guidance may include the after-tax impact of items incl ...

Financial Performance - Net sales decreased by $151.2 million (6.0%) to $2,362.7 million in 2023, primarily due to lower volume in the Electronics segment and the commercial vehicle business within the Transportation segment[166] - Net income decreased to $259.5 million ($10.34 per diluted share) in 2023 from $373.3 million ($14.94 per diluted share) in 2022, driven by lower operating income in the Electronics and Transportation segments[166] - Total revenue for fiscal year 2023 was $2,362.7 million, a decrease from $2,513.9 million in 2022[197] - Operating income for 2022 was $500.8 million, an increase of $115.2 million (29.9%) compared to 2021[251] - Operating margins increased from 18.5% in 2021 to 19.9% in 2022, primarily driven by higher operating income in the Electronics segment[251] Cash Flow and Capital Management - Net cash provided by operating activities increased by $37.7 million to $457.4 million in 2023, primarily due to reductions in working capital[167] - The company plans to return 40% of free cash flow to shareholders through dividends and opportunistic share repurchases[178] - The company's ability to access capital markets and bank credit facilities is critical for investments, strategic acquisitions, and refinancing maturing debt obligations[119] Acquisitions and Strategic Growth - The company completed the acquisition of Western Automation for approximately $162 million in cash, which had annualized sales of approximately $25 million[169] - The company entered into a definitive purchase agreement to acquire a 200mm wafer fab in Dortmund, Germany for approximately 93 million Euro, with 37.2 million Euro paid in 2023 and the remaining 56 million Euro to be paid at closing in early 2025[168] - The company targets 5-7% average annual organic sales growth and 5-7% average annual growth from strategic acquisitions as part of its five-year strategic plan[178] - The company's strategy focuses on increasing product content, expanding into high-growth geographies and end markets, and leveraging strategic acquisitions to enhance organic growth[178] Regional Sales Performance - Asia-Pacific net sales decreased by $121.0 million (11.9%) in 2023, primarily due to lower electronics and commercial vehicle sales[240] - European net sales increased by $60.6 million (12.1%) in 2023, driven by acquisitions and increased semiconductor and passenger car product sales[241] Goodwill and Asset Valuation - The company's goodwill impairment test as of October 1, 2023 indicated no impairment charges, with the estimated fair values of all seven reporting units exceeding their carrying values[185] - All seven reporting units passed the goodwill impairment test with fair values exceeding carrying values by 23% to 369% as of October 1, 2023[188] - A 1.0% decrease in estimated annual future cash flows would decrease the estimated fair value of the reporting unit by approximately 1.0%[189] - The estimated discount rate was 12.6% for most reporting units and 16.8% for the Industrial Controls and Sensors unit[189] - The company holds material amounts of goodwill and other long-lived assets, and a decline in expected profitability could lead to asset impairment[117] Revenue Recognition and Sales Incentives - The Company recognizes revenue when control of the product is transferred to the customer, typically at the time of shipment[198] - The Company offers volume-based sales incentives, estimating rebates as a reduction to revenue as products are sold[204] Market and Operational Risks - The company's revenues may vary significantly due to factors such as changes in customer buying decisions, demand for products, distributor inventory stocking, and product mix[116] - The company's fixed costs may reduce operating results if sales fall below expectations, as many expenses, particularly capital equipment and manufacturing overhead, are relatively fixed[120] - The company is exposed to potential security breaches or disruptions to its IT systems, which could result in financial liability, legal sanctions, or reputational damage[123] - The company faces risks related to currency exchange rates, commodity prices, and interest rates, which could have a material adverse effect on its results of operations and financial condition[113] - The company may incur additional expenses due to customer demands and regulations related to conflict-free minerals, particularly in the semiconductor industry[124] - The bankruptcy or insolvency of a major customer, such as an auto manufacturer or supplier, could lead to substantial disruptions and lower demand for the company's products[118] Currency Exposure - The company's most significant net long exposure is to the euro, while its most significant net short exposures are to the Chinese renminbi, Mexican peso, and Philippine peso[114] Stock Performance - The company's stock price ranged between a low of $212.8 and a high of $309.9 from December 31, 2022, to December 30, 2023[121]

Littelfuse, Inc. (NASDAQ:LFUS) Q4 2023 Earnings Conference Call January 31, 2024 10:00 AM ET Company Participants David Kelley - Head, Investor Relations Dave Heinzmann - President & Chief Executive Officer Meenal Sethna - Executive Vice President & Chief Financial Officer Conference Call Participants Luke Junk - Robert W. Baird Matt Sheerin - Stifel David Williams - The Benchmark Company Joshua Buchalter - TD Cowen David Silver - CL King Operator Good day everyone and welcome to the Littelfuse Fourth Quart ...

1 January 30, 2024 Expertise Applied | Answers Delivered Important Information About Littelfuse, Inc. This presentation does not constitute or form part of, and should not be construed as, an offer or solicitation to purchase or sell securities of Littelfuse, Inc. and no investment decision should be made based upon the information provided herein. Littelfuse strongly urges you to review its filings with the Securities and Exchange Commission, which can be found at investor.littelfuse.com. This website also ...

Littelfuse (LFUS) reported $533.81 million in revenue for the quarter ended December 2023, representing a year-over-year decline of 13%. EPS of $2.02 for the same period compares to $3.34 a year ago.The reported revenue represents a surprise of -0.42% over the Zacks Consensus Estimate of $536.05 million. With the consensus EPS estimate being $2.02, the company has not delivered EPS surprise.While investors closely watch year-over-year changes in headline numbers -- revenue and earnings -- and how they compa ...

CHICAGO--(BUSINESS WIRE)--Littelfuse, Inc. (NASDAQ: LFUS), a diversified, industrial technology manufacturing company empowering a sustainable, connected, and safer world, today reported financial results for the fourth quarter and full year ended December 30, 2023: Fourth Quarter 2023 Results Net sales of $533.8 million were down 13% versus the prior year period, and down 14.5% organically GAAP diluted EPS was $1.71; adjusted diluted EPS was $2.02 Cash flow from operations was $144 million and free ...

Wall Street analysts forecast that Littelfuse (LFUS) will report quarterly earnings of $2.02 per share in its upcoming release, pointing to a year-over-year decline of 39.5%. It is anticipated that revenues will amount to $536.05 million, exhibiting a decline of 12.6% compared to the year-ago quarter.The current level reflects a downward revision of 0.9% in the consensus EPS estimate for the quarter over the past 30 days. This demonstrates how the analysts covering the stock have collectively reappraised th ...

CHICAGO--(BUSINESS WIRE)--Littelfuse, Inc. (NASDAQ: LFUS), a diversified, industrial technology manufacturing company empowering a sustainable, connected, and safer world, announced today that it will release financial results for its fourth quarter of fiscal 2023 after market close on Tuesday, January 30, 2024. The press release and slide presentation will be available in the Investor Relations section of the company’s website, Littelfuse.com. The company will host a conference call on Wednesday, January ...

CHICAGO--(BUSINESS WIRE)--Littelfuse, Inc. (NASDAQ: LFUS), an industrial technology manufacturing company empowering a sustainable, connected, and safer world, was recently named one of America’s Most Responsible Companies on Newsweek’s 2024 list. This marks the second consecutive year the Company has been recognized. This prestigious award is presented by Newsweek and Statista Inc., the world-leading statistics portal and industry ranking provider. The final list recognizes the top 600 most responsible ...

Littelfuse, Inc. (NASDAQ:LFUS) Q3 2023 Earnings Conference Call November 1, 2023 10:00 AM ET Company Participants David Kelley - Head, IR David Heinzmann - President and CEO Meenal Sethna - EVP and CFO Conference Call Participants Luke Junk - Robert W. Baird Matthew Sheerin - Stifel David Williams - The Benchmark Company David Silver - CL King & Associates Joshua Buchalter - TD Cowen Operator Good morning, ladies and gentlemen. Welcome to the Littelfuse Third Quarter 2023 Earnings Conference Call. [Operato ...