Power inductors are key components for the power supply circuits of the growing number of electronic control units (ECU) in today’s cars. With temperatures that can range from -40 °C to +150 °C the operating conditions in the engine compartment of cars are especially harsh. In order to maintain the high reliability and efficiency of the SMD power inductors over this entire temperature range, TDK used its leading materials technology to develop a new material with excellent heat resistance. As a result the CLF7045-D series is highly suitable for use as choke coils in the DC-DC converters of engine control modules and similar applications. Other application areas include ABS, airbag, and headlight systems.
In addition, an automated process was adopted for the coil windings and connecting lines of the CLF7045-D series, which results in a high-quality baseless, solderless design.