You can use any inductor of the same general specification. Get the Inductance value, saturation current, RMS current and DCR from the coilcraft inductor. Then choose a similar inductor from the vendor of your choice. For example the Wurth PN for 2.2 uH is 74437324022. You can look in that 74437324 series for other values, although the Coilcraft is slightly better rated. Many inductors have exact cross references while the manufactures have manly slight variations is case size and electrical characteristics to differentiate their products.
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