The 1140-221K-RC is a high-current choke inductor from Bourns' 1140 Series, designed for demanding power conversion and filtering applications. It features an inductance of 220 µH (±10%) at 1 kHz with a maximum DC resistance of 0.050 O, enabling efficient energy storage and current smoothing in high-current circuits. The device is rated for 7.4 A RMS continuous current with a saturation current of 14.0 A, and operates reliably across a temperature range of -55°C to +105°C. The choke incorporates an epoxy-coated ferrite bobbin core with VW-1 rated shrink tubing, self-leaded construction, and a center hole for mechanical mounting, providing robust mechanical and electrical performance. Dielectric withstanding voltage ratings of 2500 Vrms (terminal to shrink tube cover) and 1000 Vrms (terminal to core) ensure safety in high-voltage environments. This component is ideal for switching power supplies, DC-DC converters, and other applications requiring low-loss, high-current inductance.