Robust and efficient qualified power inductors for the automotive industry

TT Electronics has launched the HA78 series of power inductors aimed at LED driver and braking control system applications in the automotive market. The inductors are suitable for high power density applications where size is critical and particularly where high-efficiency DC-DC converters are using high switching frequencies to 3Mhz as well as EMI and low pass DC filters. Noting the all important automotive industry AEC-Q200 certification, the inductors are available in a wide range of inductance and current rating to meet the needs of many applications. Inductance ratings from 1.4µH to 1800µH, and current ratings up to 10A are available. Reliability was a key factor in the design of the inductors including an operating temperature range of -40 to +125C, and a maximum temperature rise of 40C from an 85C ambient environment. Able to withstand high shock and vibration conditions, the inductors are mechanically robust for long life expectancy. Magnetically shielded and RoHS compliant, the series inductors feature low resistance values that minimise insertion loss and maximise system efficiency. The inductors are suitable for automotive electronic design engineers in specific applications such as LED driver, powertrain, engine and transmission control, as well as with design engineers operating in the general industrial area for use in DC-DC converters and automation applications.