Product News: Sensors Monitors & Transducers

NTC Disc Thermistors offer R25 from 4 ohms to 150 kohms.

Press Release Summary:

Jun 12, 2014 - As alternative to thermocouples, NTC disc thermistors come in diameters from 2.54–12.7 mm and profiles from 0.64–5.33 mm and offer precision tolerances to 1% for accurate temperature measurement. Values include resistance at 25 °C from 4Â Ω to 150 kΩ, Beta from 3000 to 5000K, and operational ranges up to +150°C. With dissipation constants from 3–17 mW/°C and thermal time constants down to 5 sec, products deliver stability and sensitivity for temperature measurement, compensation, and control.

Original Press Release

New Ametherm High-Accuracy NTC Disc Thermistors Offer R25 From 4 ohm to 150 kohm and Tolerances to 1%

Press release date: Jun 04, 2014

CARSON CITY, Nev. — Ametherm today introduced new NTC disc thermistors — recently acquired from Measurement Specialties (formerly RTI Electronics) — featuring a wide range of resistance values and precision tolerances to 1 % for high-accuracy temperature measurement.

Providing designers with a cost-effective alternative to thermocouples in precision circuits, the NTC disc thermistors deliver high stability and maximum sensitivity for temperature measurement, compensation, and control in applications such as fan motor controls, fluid levels, and temperature sensors in a wide range of end products.

With diameters from 2.54 mm to 12.7 mm and profiles from 0.64 mm to 5.33 mm, the devices released today feature resistance at 25 °C from 4 Ω to 150 kΩ, Beta from 3000 °K to 5000 °K, and high-temperature operation to + 150 °C. The NTC disc thermistors offer dissipation constants from 3 mw/°C to 17 mw/°C and thermal time constants down to 5 s. RoHS-compliant, the leaded components are available in insulated and non-insulated configurations.

The devices are available direct or through distributors such as Sager, Dexter Magnetic Technologies, and PUI. Samples and production quantities of the NTC disc thermistors are available now, with factory lead times of six weeks. Volume pricing for U.S. delivery starts at $0.40 per piece.

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, Nev., 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.