Vishay Intertechnology, Inc. Chassis Mount Resistors RER60FR976RCSL

The RER60FR976RCSL is a chassis mount wirewound resistor from Lingto Electronic Limited, designed for military applications and qualified to MIL-PRF-39009 standards. It features an aluminum heat sink housing and a molded construction that provides total environmental protection. The resistor is non-inductive, utilizing Ayrton-Perry winding to minimize reactive components, and is capable of mounting directly onto a chassis to leverage the heat-sink effect. This model has a power rating of 5 watts at 25 °C and a resistance value of 0.976 ohms with a tolerance of ±1%. It operates effectively within a temperature range of -55 °C to +250 °C. The resistor is constructed with a copper-nickel or nickel-chrome alloy element, depending on the resistance value, and has a ceramic, steatite, or alumina core. The encapsulant is made of silicone, and the housing is aluminum with a hard anodic coating, ensuring durability and reliability in demanding environments. Engineers considering this resistor should note its robust construction and military-grade specifications, making it suitable for applications requiring high reliability and performance under extreme conditions.