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Inductors aid high-current PSU design

Edited by the Electronicstalk editorial team Jul 7, 2003

The DXM series of lead-free low-voltage high-current inductors is designed for switching power supplies and portable electronics.

The DXM series of lead-free low-voltage high-current inductors is designed for switching power supplies and portable electronics.

The magnetic components collect, filter and smooth AC ripple current in DC circuits.

The inductor's low-profile design minimises board real estate requirements and maximises power density while providing excellent coplanarity.

The design of the DXM Series reduces failure modes often found with plating and solder terminated wires and leads, and the multigap technology used to manufacture the device also reduces fringing flux and stray field emissions.

The core material is not susceptible to thermal aging, and provides a MTBF of greater than 1Mh of operation.

With current handling ranges of up to 30A, and inductance ranges of 0.20 to 10uH, the DXM series was developed to assist power supply design engineers with designing more power efficient circuits in high-power applications.

The lead-free device uses a 200C insulation system and is well suited for operating in environments with a -40 to +155C temperature range.

It is currently available in a 13 x 13 x 6.0mm size.

"The DXM series of inductors allow for better reflow solderability and higher current handling capability than other low-profile solutions", said Terry VanConant, Power Magnetics Product Manager for Tyco Electronics Power Components.

"The device's high temperature withstand and reduced rolloff at high currents makes it suitable for laptops, industrial controls, and other extreme environments", he added.