The MZ05009D1IA00 with Radial Leaded, P=7.5mm NTC Thermistors ROHS is a resistor manufactured by Dersonic for temperature detection. It is made from NTC material, which means it has a negative temperature coefficient, meaning that its resistance decreases as the surrounding temperature increases. Very small, it is only 7.5mm in diameter and has radial leads coming off of the body of the resistor. This particular resistor is ROHS compliant, meaning it meets the standards of the Restriction of Hazardous Substances Directive of the European Union, in regards to hazardous materials. Its unique design makes it ideal for use in many applications, including temperature measurement, current sensing, flow detection, HVAC systems, and more.