The CR1812F12K0E04Z is a Chip Resistor - Surface Mount 12KOhms±1% 1/2W 1812 RoHS manufactured by Ever Ohm. It is a surface-mount type of resistor, which requires soldering to a PCB or other material before being used. The value of 12KOhm is, as its name implies, the resistance in Ohms. The CR1812F12K0E04Z can handle a power rating of 1/2W, meaning it will dissipate power up to 500mW without potentially damaging the resistor. The ±1% tolerance lets the user know the resistor will be within ±1% of its stated value, in this case 12KOhms. Lastly, the CR1812F12K0E04Z is RoHS-compliant, meaning that it does not contain hazardous materials, such as lead, and is therefore compliant with RoHS regulations.