ECS-HCMPI-0503Q Hi-Current Power Inductors ECS ECS-HCMPI-0503Q Hi-Current Power Inductors offer low DCR, high efficiency, low acoustic noise, and low leakage flux noise in a 5.5mm x 5.3mm x 2.9mm sized package. The ECS-HCMPI-0503Q inductors are AEC-Q200 Grade 1 qualified (-40°C to +125°C) and are ideal for applications such as battery-powered devices, DC/DC converters, soft saturation, and high current power supplies.