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Articles Tagged with ''thermistors''
TEGAM Inc., a leading supplier of innovative RF power measurements, was recently awarded Patent No. 8,558,556, “Planar-axial thermistor for bolometry.” This patent describes a novel way to construct very small planar thermistors on a substrate with very low heat transfer. The thermistors are more thermally isolated from the environment than are commercially-produced thermistors. Both the small size and thermal isolation make them useful for measuring RF power at microwave frequencies up to 70 GHz.
Vishay Intertechnology Inc. introduced a new series of radial-leaded, positive temperature coefficient (PTC) thermistors. Devices in the new TFPTL <http://www.vishay.com/doc?33027> series feature nickel thin film elements with positive temperature coefficients of + 4110 ppm/K, fast response time of < 2 s, and high stability over a wide temperature range from - 55 to + 150 °C.