RS Pro Wire Wound Chokes. RS Pro unshielded surface mount power inductors feature high currents (up to 4 Amps) and high inductance (up to 680 H) while maintaining a small form factor. These surface mount power inductors are Pb-Free compatible and are suitable for both flow and reflow soldering. Applications include DC-DC converters and DC-AC inverters. High current, small size (up to 4 amps) Surface mountable construction High inductance (up to 680 h) For use in DC/DC converters, DC/AC inverters Pb-free compatible