Vishay Intertechnology, Inc. Chassis Mount Resistors RER70F1740RC02

The RER70F1740RC02 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 constructed with complete welded assembly and offers non-inductive styles manufactured using Ayrton-Perry winding, which minimizes reactive components. This specific model has a power rating of 20 watts at 25 ¬8C and a resistance value of 174 ohms with a tolerance of ¬±1%. It operates effectively within a temperature range of -55 ¬8C to +250 ¬8C. The resistor is designed to mount on a chassis, utilizing the heat-sink effect for improved thermal management. It also meets stringent performance criteria, including low temperature operation, short time overload, and moisture resistance, ensuring 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.