Ultra low loss inductors for high frequency power designs

May 03, 2018 //By Nick Flaherty
Ultra low loss inductors for high frequency power designs
Coilcraft has launched a family of molded power inductors that offer low DC resistance and ultra-low AC losses, greatly improving power converter efficiency at high frequencies of 2 to 5+ MHz and high ripple current.

The XEL50xx inductors measure just 5.28 x 5.48 mm with a maximum height of 3.2 mm.The use of high switching frequencies or high ripple current allows a corresponding lower inductance value, which results in a physically smaller part for the same electrical specs.

The XEL50xx Family is currently available in two models, the XEL5020 and XEL5030. A third model, the XEL5050 is expected late Q2 2018. The XEL5020 is available in six inductance values from 0.10 to 1.0 µH, with current ratings up to 39 Amps. The XEL5030 has 10 values from 0.13 to 4.7 µH and current ratings up to 44 Amps. All models offer soft saturation characteristics to withstand high current spikes and have no thermal aging issues.

The inductors are qualified to AEC-Q200 Grade 1 standards (-40° to +125°C ambient) with a maximum part temperature of +165°C, making them suitable for automotive and other harsh-environment applications. They feature RoHS-compliant, tin-silver-over-copper terminations and are halogen free. Their composite construction also minimizes audible buzzing.

Free evaluation samples of the XEL50xx Series are available online at  www.coilcraft.com.


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