This is an electronic part from Ralec, a manufacturer of resistor components. It is a chip resistor, surface mount 1.21KOhms ±1% 1/20W 0201, and it is RoHS compliant. It is designed for use in high precision, low power applications such as board-level PCB designs. The component features a low profile of 0201, allowing for better thermal management and flexibility in its usage. The component is rated at a maximum working voltage of 200V, with a maximum working temperature of +125°C. The component is also tested to meet safety standards such as UL, CSA, TUV, VDE, and other international standards.