The DL0603-2.7 is a ferrite core, also known as a toroid core, used in power line, switching power supplies, and other applications requiring a high frequency and high current inductive coil. This small ferrite core has an inner diameter of 0.63 inches (15.9mm), outer diameter of 0.9 inches (22.8mm), and a winding window height of 0.5 inches (12.7mm). It has an operating temperature range from -40°C to +135°C and is made from Gamma ferrite material. The DL0603-2.7 can be used in PI filters, push-pull converters, and A/C transformers.