Ametherm Announces UL Recognition for Specialty Power Thermistors

Engineers needing UL-recognized power thermistors that allow between 1.3 and 6 watts in the 1 to 8 amp range can find them at Ametherm, a U.S.-based manufacturer of inrush current limiters. The UL recognition makes Ametherm one of the few manufacturers of these types of products, especially in the smaller size range.

“Regulators in most countries look for Underwriters Laboratories (UL) certification to ensure product safety,” said Mehdi Samii, Ametherm’s vice president of engineering and sales. “Having agency approval on our SL08, SL10, SL12, and SL15 power thermistors provides engineers and manufacturers with a product that will consistently meet their design and development standards.”

The Ametherm parts that recently received UL recognition include: SL08 2R503, SL08 4R003, SL08 5R002; SL10 2R505, SL10 4R004, SL10 5R003, SL10 25002, SL10 40002, SL10 50001, SL10 12101; SL12 1R308, SL12 2R505, SL12 5R004, SL12 8R003, SL12 10005, SL12 15004, SL12 17004, SL12 20003, SL12 25003, SL12 40002, SL12 50002, SL12 80002, SL12 12102, SL12 15102, SL12 22101; SL15 40004, SL15 60002, SL15 80002, SL15 12102, and SL15 22102. Many of Ametherm’s other power thermistors also have UL, as well as CSA (Canadian Standards Association), recognition.

Samii says Ametherm’s smaller SL products have been in high demand in markets worldwide, especially for applications that have tighter spaces, yet still require durable protection from inrush current. Since agency approvals involve extensive testing and processing, there are only a few inrush current limiting manufacturers that offer them. At the same time, safety standards are becoming more universal, making agency recognition more important when manufacturing electronic components and devices.

Ametherm was founded in 1994 and is ISO9000:2008 certified. The company's devices are the highest rated product of this type in the industry and are distributed worldwide. For more information or to request a sample, visit or call 800-808-2434 (toll free in the United States) or 775-884-2434 from outside the US and Canada.

About Ametherm

Ametherm, headquartered in Carson City, Nevada, was founded in 1994 and specializes in inrush current limiting power thermistors for circuit protection in the power market industry. Ametherm's devices are some of the highest rated in the industry and provide the widest range of output protection available. For more information, visit or call 800-808-2434.


Kerstin Plemel, 775-443-7559
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