MALVERN, PA — Vishay Intertechnology Inc. (NYSE: VSH) expanded its automotive electronics portfolio with four compact common mode chokes designed to reduce power losses and electromagnetic interference as vehicles incorporate more power, networking and electronic systems.
The Malvern-based electronic components manufacturer introduced the Vishay Dale ICM5050-A, ICM6050-A, IFLN-1210BE-A and IFLN-1812CZ, all qualified under the AEC-Q200 automotive reliability standard and rated for operation at temperatures up to 150 degrees Celsius.
The components are intended for applications including DC/DC power supplies, vehicle displays, lighting drivers, in-vehicle Ethernet networks and battery-powered systems.
Vishay said the devices offer direct current resistance ranging from 0.4 milliohms to 12 milliohms, compared with about 23 milliohms for typical toroidal common mode chokes. Lower resistance can reduce energy lost as heat as current passes through a component.
The ICM5050-A and ICM6050-A are wirewound ferrite chokes capable of handling currents of as much as 11 amps and 14 amps, respectively.
Their footprints measure 12 millimeters by 11 millimeters by 6 millimeters for the ICM5050-A and 15 millimeters by 13 millimeters by 6 millimeters for the ICM6050-A. Vishay said the devices can replace toroidal chokes that typically measure 19 millimeters by 30 millimeters by 28 millimeters, reducing the circuit-board space required for filtering.
The IFLN-1210BE-A and IFLN-1812CZ use ferrite construction with precision winding and provide common mode impedance of as much as 11 kilohms at 100 megahertz.
Those components are designed to suppress electromagnetic interference in automotive controller area networks, local area networks and DC/DC converters.
Common mode chokes filter unwanted electrical noise from power and data lines, a function that becomes increasingly important as vehicles add electronic control systems and higher-speed communications networks.
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