Rush current limiters samples in stock at distributor

9th August 2016

DigiKey

Mick Elliott

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Sample kits of Ametherm's rush current limiters and NTC sensing thermistors are now available from Digi-Key. The distributor is stocking Ametherm's Standard, Mega, Mini, and Sensor Sample Kits. Ametherm's Standard Sample Kit consists of nine 120 VAC and 240 VAC inrush current limiters from the company's SL series.

The devices feature resistance values at 25°C of 10Ω, diameters from 3mm to 32mm, and steady-state current from 1.0A to 15.0A.

For single- and three-phase input voltages up to 680VAC, the Mega Sample Kit features five inrush current limiters from Ametherm's MegaSurge series.

The devices offer diameters from 14mm to 37mm, up to 500J of input energy, steady-state current to 18 A, and resistance values at 25°C of 10Ω, 30Ω, and 150Ω.

The Sensor Sample Kit of NTC sensing thermistors includes four probe assembly types — ring lug, threaded hex nut and tip, epoxy, and steel housing.

Constructed of specially formulated metal oxide ceramic materials that are extremely accurate in temperature sensing, the devices feature resistance values at 25 °C from 10 kΩ to 100 kΩ, beta of 3,950 K and 4500 K, thermal time constant down to 10.0 s, and maximum power of 125 mW.

The kit also includes a device from Ametherm's ACCU-Curve series of interchangeable thermistors. Offering tight tolerance of ± 0.2 °C and a fast thermal time constant of 7.0 s, the epoxy-coated device can be potted in a variety of housings.

Ametherm products are recognised by Underwriters Laboratories (UL) and the Canadian Standards Association (CSA International) for ensured safety, and many are RoHS-2-certified (with Exemption 7a and 7(c)-1).

The devices are optimised for a wide range of applications, including AC motors, power supplies, motor drives, audio amplifiers, battery chargers, air sensors, HVAC systems, high-speed computers, MRIs, and X-ray machines.