STMicroelectronics Introduces World's First Integrated EMI Filter for Automotive Ethernet Connectivity

STMicroelectronics EMIF02-01OABRY

STMicroelectronicsEMIF02-01OABRY is a highly integrated solution designed to suppress EMI1 noise in automotive applications employing BroadR-Reach®2 interfaces. This EMI-suppressing low-pass filter includes 15 kV ISO 10605 surge protection and is AEC-Q101 qualified.

STMicroelectronics - EMIF02-01OABRY

Till now, designers have used discrete components to design EMI filters that are compatible with the BroadR-Reach specification. Because there may be a large dispersion between components, these discrete networks’ performance must be fine- tuned at significant time and cost.

The EMIF02-01OABRY solves this issue by providing an already application-validated integrated solution, making the end applications smaller and faster to design. Within the Automotive temperature range of –40 °C to 125 °C, the EMI filter attenuation profile is fully compliant with BroadR-Reach requirements, with a return loss of –20 dB at 60 MHz and component matching of 1% between line 1 and 2.

EMIF02-01OABRY equivalent circuit
EMIF02-01OABRY equivalent circuit.

Other key technical features include:

  • Compliant with the IEC 61000-4-2, ISO 10605, and ISO 7637-3 automotive standards;
  • Compact 3×3 mm2 wettable-flank QFN package, facilitating optical inspection of the solder joints.

Samples of the EMIF02-01OABRY are available now at a price of US$0.48 in quantities of 1000 units.

EMIF02-01OABRY equivalent circuit.

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