Würth Elektronik has recently released the WE-PDF series of high performance flatwire inductors. It is available in two different sizes, 10mm x 10mm x 4mm and 10mm x 10mm x 6mm. The WE-PDF consists of a ferrite material which has significantly lower core losses than iron powder inductors and is mainly used in high current inductor designs. The WE-PDF series is optimized for power supplies running high switching frequencies. In particular by using a flatwire construction, the frequency dependent resistance of the wire is significantly lower than using a roundwire. Due to the focus on high performance partial components for the design, the WE-PDF series has been released for an extended temperature range up to 150°C.