Coilcraft XEL50xx Family of high-performance, molded power inductors offer exceptionally low DC resistance and ultra-low AC losses, greatly improving power converter efficiency
at high frequencies (2 to 5+ MHz) and high ripple current. The use of high switching frequencies 
or high ripple current allows a corresponding lower inductance value, resulting in a physically smaller part (5.28 × 5.48 mm) for the same electrical specs. All XEL50xx Family inductors are qualified to AEC-Q200 Grade 1 standards (−40°C to +125°C ambient) with a maximum part temperature of +165°C, making them suitable for automotive and other harsh-environment applications.

https://www.coilcraft.com/XEL50xx/