Vishay Dale RER65F4R99R Aluminum-Housed 4.99? 10W 1% Power Resistor Pack of 10 The Vishay Dale RER65F4R99R is a high-performance, aluminum-housed power resistor designed for demanding applications requiring precision and durability. This resistor offers a resistance of 4.99 ohms with a tight tolerance of ±1%, ensuring accurate and reliable performance in various electronic circuits. Key Features Power Rating: Capable of dissipating up to 10 watts of power, making it suitable for applications with significant power requirements. Construction: Built with a wirewound composition housed in an aluminum casing, providing excellent heat dissipation and mechanical protection. Temperature Coefficient: Maintains stability across temperature variations with a coefficient of ±50ppm/°C, ensuring consistent performance from -55°C to 250°C. Mounting: Equipped with flanges for secure chassis mounting, facilitating easy installation and integration into various systems. Dimensions: Compact size measuring 0.750 inches in length and 0.800 inches in width (19.05mm x 20.32mm), with a maximum seated height of 0.405 inches (10.29mm), allowing for efficient use of space in design layouts. Lead Style: Features solder lugs for reliable electrical connections and ease of assembly. Compliance: Meets military standards MIL-PRF-39009, ensuring high reliability and performance in critical applications. Applications This resistor is ideal for use in power supplies, motor drives, and other industrial equipment where precise resistance and robust construction are essential. Its aluminum housing and flange mounting make it particularly suitable for environments requiring efficient heat management and mechanical stability. Each pack contains 10 units of the Vishay Dale RER65F4R99R resistor, providing value and convenience for both prototyping and production needs.