Ametherm MS35 series inrush current limiting NTC thermistors

Ametherm MS35 series inrush current limiting NTC thermistors are designed to withstand high input energy from 500–900 J and steady-state currents from 10–50 A.

The product has a rugged design and is optimised for high-power applications, including solar inverters, battery chargers and DC/DC converters.

It consists of seven thermistors featuring resistance from 0.5 to 20 Ω, dissipation constants from 78–102.45 mw/°C and thermal time constants from 65–240 s. The devices can handle body temperatures up to 235°C at 100% of their maximum current rating and they offer maximum capacitance from 1000–1800 µF at 680 VAC.

Featuring diameters of 37 and 38 mm and thickness down to 6.50 mm, the thermistor handles the same amount of energy as power resistors in a smaller package, saving valuable circuit board space. In addition, it provides simple, one-component alternatives to using power resistors with timers and relays, reducing costs and simplifying designs.