Ametherm today released a new series of UL-approved circuit protection thermistors claiming industry-high energy and steady state current ratings for inrush current limiting in power supplies from 50W to 200W, 1/8 HP motors and small pumps, lighting, and audio charging stations for portable consumer devices.
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The new SL08 series thermistors released today feature maximum received energy ratings from 8- to 12-J and handle steady state currents up to 4A. The devices offer a wide range of resistance values from 2.5- to 220-Ω, dissipation constants from 5.2 mw/ degree C to 90 mw/ degree C, and thermal time constants down to 8 sec. The thermistors can handle body temperatures up to 158 degrees C at 100% of their maximum current rating.
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“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. Volume pricing for U.S. delivery starts at $0.20 per piece.
source: http://www.powerpulse.net/story.php?storyID=32410
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