The AC1210FR-0730K1L with Thick Film Resistors - SMD 30.1Kohm 1% 1/2W AEC-Q200 is a surface mount resistor manufactured by Yageo. It has a power rating of 1/2 watt and is AEC-Q200 approved, meaning it can be used in automotive and industrial applications. With its 30.1K ohm resistance value and 1% tolerance, it is ideal for precision analog circuits. It is also corrosion-resistant, making it perfect for harsh environments. Its small size, low noise, and noise immunity make it an ideal choice for portable devices.