Vishay Intertechnology, Inc. Chassis Mount Resistors RER50F1R21RCSL

The RER50F1R21RCSL 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. This resistor is constructed with complete welded joints and is available in non-inductive styles, utilizing Ayrton-Perry winding to minimize reactive components. With a power rating of 20 watts at 25 ¬8C, the resistor has a resistance value of 1.21 ohms and a tolerance of ¬±1%. It operates effectively within a temperature range of -55 ¬8C to +250 ¬8C and has a minimum insulation resistance of 10,000 MOc when dry. The resistor is suitable for applications requiring high reliability and performance under various environmental conditions. Engineers considering this component should note its robust construction and military qualification, making it suitable for demanding applications.