SOURCE: Ametherm


June 10, 2015 11:00 ET

New Ametherm Thermistors Deliver Industry-High Energy Ratings to 12 J and Current to 4 A

Devices Optimized for Power Supplies, Lighting, Motors, and Audio Charging Stations

CARSON CITY, NV--(Marketwired - Jun 10, 2015) - Ametherm today released a new series of UL-approved circuit protection thermistors with industry-high energy and steady state current ratings for inrush current limiting in power supplies from 50 W to 200 W, 1/8 HP motors and small pumps, lighting, and audio charging stations for portable consumer devices.

The new SL08 series thermistors released today feature maximum received energy ratings from 8 J to 12 J and handle steady state currents up to 4 A. The devices offer a wide range of resistance values from 2.5 to 220 ohms, dissipation constants from 5.2 mw/°C to 90 mw/°C, and thermal time constants down to 8 s. The thermistors can handle body temperatures up to 158 °C at 100% of their maximum current rating.

Offering diameters from 7.5 mm to 9.0 mm and low profiles down to 2.8 mm, SL08 series devices provide designers with a more compact and cost-effective alternative to combining a power resistor, relay, and timer on one circuit to achieve the same functionality.

"From power supplies to the charging of portable media players, our SL08 thermistors provide designers with the high current protection they require without sacrificing board space," said Eric Rauch, president and CEO at Ametherm. "It's the most cost-effective and simple way to limit inrush current and increase reliability."

SL08 thermistors are available direct from Ametherm or through distributors such as Mouser, Digi-Key, Newark element14, and Farnell. Samples and production quantities of the devices are available now, with factory lead times of four to five weeks.

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 U.S. 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 inrush current protection available. For more information, visit or call 800-808-2434.

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Contact Information

  • Agency Contact:
    Bob Decker
    +1 415 409 0233
    Email Contact

    Ametherm Contact:
    Lori Morton
    +1 775 884 2434
    Email Contact