Littelfuse Sponsors Weekend Race Promotion at Upcoming IndyCar Events

Participants able to spend weekend "up close and personal" on track with pit crew, race engineers

CHICAGO--(BUSINESS WIRE)-- Littelfuse, Inc. (NASDAQ/NGS:LFUS), the worldwide leader in circuit protection, has created a "behind-the-scenes" IndyCar weekend Race Experience for the engineering community. The "Speed2Design" promotion, connected to five upcoming races on the 2012 IZOD® IndyCar schedule, will bring participants behind the scenes for the weekend to spend time with the team engineers and pit crew behind the Littelfuse co-sponsored No. 11 MOUSER ELECTRONICS/GEICO/KV Racing Technology driven by IndyCar champion . "Speed2Design" participants will be chosen at random during the next few months and there's no cost to winners; a travel voucher, lodging and event expenses will be covered by Littelfuse. To enter and learn more, visit www.speed2design.com.

"The innovative designs and high-efficiency performance found in IndyCar racing relate to the Littelfuse 85-year history of developing innovative and highly reliable products for our automotive and electronics customers. Engineers truly value and understand the technology challenges, demands and reliability required of the electronics system in a machine traveling 200 MPH," said Gordon Hunter, President and CEO of Littelfuse. "Speed2Design will provide an opportunity for engineers to explore that technology in a very personal, accessible setting. Just as with racing, we understand that the first one to cross the finish line wins, and we want to position our customers to leading when it comes to their designs."

The "Speed2Design" events will take place during five races between May and September in the 2012 IZOD® IndyCar series: , IN, (May 27), Fort Worth, TX, (June 9), Qingdao, China (August 19), Sonoma, CA, (August 26) and Fontana, CA. (September 15).

"Speed2Design" was created by Littelfuse to allow the design community an exclusive opportunity to meet and talk with race car engineers about some of the most demanding and advanced technology in use today. Littelfuse will randomly select five participants who enter the promotion to attend each "Speed2Design" event.

The "Speed2Design" program is a series of weekend activities surrounding the race, creating a unique experience of hands-on activities, interactive presentations and entertainment. Each weekend will highlight a "TechTalk" presentation just for "Speed2Design" participants to talk face-to-face with the KV Racing team engineers responsible for building and maintaining racing's premier performance machines.

"Speed2Design" will allow participants to become part of the race environment, with exclusive access to the No. 11 IndyCar. "Speed2Design" participants will visit the team engineering transport, the pit, garage and track areas during practice/qualifying runs along with spending time in the pit box area that controls sensor-related data acquisition control panels. A variety of race- related hospitality events are included and of course, reserved grandstand seating for that weekend's race.

Listen to Hunter discuss Speed2Design at www.Speed2Design.com.

About Littelfuse

Founded in 1927, Littelfuse, Inc., the worldwide leader in circuit protection, offers the industry's broadest and deepest portfolio of circuit protection products and solutions. Littelfuse devices protect products in virtually every market that uses electrical energy, from consumer electronics to automobiles to industrial equipment. In addition to its Chicago, Illinois, world headquarters, Littelfuse has more than 20 sales, distribution, manufacturing and engineering facilities in the Americas, Europe and Asia. Technologies offered by Littelfuse include Fuses; Gas Discharge Tubes (GDTs); Positive Temperature Coefficient Devices (PTCs); Protection Relays; PulseGuard® ESD Suppressors; SIDACtor® Devices; Silicon Protection Arrays(SPA™); Switching Thyristors; TVS Diodes and Varistors. The company also offers a comprehensive line of highly reliable Electromechanical and Electronic Switch and Control Devices for commercial and specialty vehicles, as well as underground Power Distribution Centers for safe control and distribution of electricity in mining operations.

For more information, please visit Littelfuse's Web site www.littelfuse.com.

"Safe Harbor" Statement under the Private Securities Litigation Reform Act of 1995. The statements in this press release that are not historical facts are intended to constitute "forward-looking statements" entitled to the safe-harbor provisions of the PSLRA. These statements may involve risks and uncertainties, including, but not limited to, risks relating to product demand and market acceptance, economic conditions, the impact of competitive products and pricing, product quality problems or product recalls, capacity and supply difficulties or constraints, coal mining exposures reserves, failure of an indemnification for environmental liability, exchange rate fluctuations, commodity price fluctuations, the effect of the company's accounting policies, labor disputes, restructuring costs in excess of expectations, pension plan asset returns less than assumed, integration of acquisitions and other risks which may be detailed in the company's other Securities and Exchange Commission filings. Should one or more of these risks or uncertainties materialize or should the underlying assumptions prove incorrect, actual results and outcomes may differ materially from those indicated or implied in the forward- looking statements. This report should be read in conjunction with information provided in the financial statements appearing in the company's Annual Report on Form 10-K for the year ended December 31, 2011. For a further discussion of the risk factors of the company, please see Item 1A. "Risk Factors" to the company's Annual Report on Form 10-K for the year ended December 31, 2011.

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Littelfuse, Inc. Rhonda Stratton, 773-628-0644 Marketing Communications Manager [email protected]

Source: Littelfuse, Inc.

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