Ametherm has released a series of new UL-certified circuit protection thermistors with industry-high energy and steady-state current ratings that can limit 50W to 200W, 1/8 HP motors and small pumps, lighting and audio charging Inrush current in portable consumer equipment workstations.
SL08 series thermistors have a maximum rated receiving energy of 8J to 12J and can handle steady-state currents up to 4A. The resistance values of these devices range from 2.5ohm to 220ohm, the dissipation constant is from 5.2mw / C to 90mw / C, and the thermal time constant is as low as 8s. The thermistor can withstand temperatures up to 158 ° C at 100% of the maximum rated current. The SL08 series devices offer a diameter of 7.5mm to 9mm and a flat shape as low as 2.8mm, providing designers with a more compact and economical option. The company says that a power resistor, relay and timer on a circuit can be To achieve the same function.
"From the power supply to the charging of portable media players, our SL08 thermistor provides designers with the high current protection they need without sacrificing board space," said Eric Rauch, Ametherm's president and CEO. "This is the most cost-effective and easiest way to limit inrush current and improve reliability."
