The BOURNS part CRT0805-BY-4R70ELF is a precision chip resistor designed for various electronic applications. It is a 1/8 W resistor with a resistance value of 4.70 ohms, featuring a tight tolerance of ±0.1% and a low temperature coefficient of ±25ppm/°C. This resistor is commonly used in precision circuitry and high-accuracy measurements where stability and reliability are crucial. With its compact surface-mount package (0805), it can fit seamlessly into densely populated circuit boards. Additionally, it is capable of withstanding voltage up to 150V, making it suitable for a wide range of voltage applications.