The 1130-121K-RC is a high-current choke inductor from Bourns' 1130 Series, designed for demanding power conversion and filtering applications. It features an inductance of 120 µH at 1 kHz with a DC resistance of 0.046 O, enabling efficient energy storage and current smoothing in high-current circuits. The device is rated for a maximum DC current of 7.2 A (at 50°C temperature rise and 5% inductance drop) and incorporates an epoxy-coated ferrite bobbin core with VW-1 rated shrink tubing for enhanced durability and safety. The choke operates reliably across a wide temperature range of -55°C to +105°C and provides dielectric withstanding voltage of 2500 Vrms (terminal to shrink tube cover) and 1000 Vrms (terminal to core). Its self-leaded design with fixed lead spacing and center hole for mechanical mounting makes it ideal for integration into switching power supplies, DC-DC converters, and industrial power management systems where compact size and high current capacity are essential.