Vishay Intertechnology, Inc. Chassis Mount Resistors RPS0250AL5000JB

The RPS0250AL5000JB chassis mount resistor from Lingto Electronic Limited is designed for high power applications, featuring a power rating of 250 W at 50 °C and capable of handling short overloads up to 1000 W for 10 seconds. This resistor utilizes thick film technology and is intended for mounting onto a heatsink, ensuring efficient thermal management. It has a resistance range from 0.24 Ω to 1 MΩ, with a standard tolerance of ±5% and a temperature coefficient of ±150 ppm/°C for resistances above 1 Ω. The device is compliant with NF-EN45545-2 requirements and exhibits low thermal radiation. It has a dielectric strength of 12 kV for H connections and 7 kV for L connections, with an insulation resistance greater than 10^6 MΩ. The resistor is constructed with a cermet resistive element on an alumina substrate, and its mechanical specifications include a weight of approximately 170 g and flammability rating of UL 94 V-0. Operating temperature ranges from -55 °C to +125 °C, making it suitable for various environmental conditions. The recommended mounting practices emphasize the importance of proper heatsink selection and thermal interface materials to optimize performance.