WE-SD Rod Core Inductors Würth Elektronik WE-SD Rod Core Inductors offer inductance values up to 10µH with maximum current up to 15A and an extended operating temperature range of -40°C to +150°C. These inductors feature high mechanical stability and high saturation currents. They can be used as RF filters, filtering power amplifiers, and power supplies. Würth Elektronik WE-SD Rod Core Inductors are especially ideal for EMI filtering in motors and switching regulators. Typical applications include DC motors used in power tools, brushless motors, and white goods.