.The AECR1210F51R0K9 is a surface-mount chip resistor made by ResistorToday. With a resistance of 51Ohms and a ±1% tolerance, it has a power rating of 330mW and is compliant with RoHS directives. The 1210 package size, also known as a "metric 1206 size", measures 3.2mm x 1.6mm. This resistor is ideal for a range of applications such as automotive, military, and consumer electronics. It supports technologies such as high speed switching, low noise, and high-temperature operation, making it suitable for a wide range of applications.