XAL40xx High-Temperature Inductors Coilcraft XAL40xx High-Temperature Inductors include the XAL4020, XAL4040, and XAL4040 series of high-performance molded power inductors. These devices are mechanically rugged and magnetically shielded for use in high-density power converter circuits. The series features high current ratings and is ideally suited for high switching frequencies with low AC losses. Coilcraft XAL40xx High-Temperature Inductors minimize audible buzzing through a composite construction. The inductors are AEC-Q200 Grade 1 compliant (-40°C to +125°C) with a +165°C maximum part temperature. A sample kit is available.