Low-profile common mode choke for noise suppression in CAN applications

October 31, 2018 // By Nick Flaherty
Coilcraft has launched a series of common mode chokes for noise suppression on CAN (1 Mbps) or CAN FD (5 Mbps) data lines in industrial automation and automotive applications.

CAN Common Mode Chokes are the most commonly-used filter component to attenuate common mode noise at the CAN bus (Controller Area Network) transceiver’s output. The 1812CAN Series can also be used for the FlexRay automotive bus system.

Measuring just 4.95 X 3.18 X 3.0 mm, the low-profile 1812CAN Series is offered with inductance values from 11 to 100 µH to filter a broad range of common mode noise frequencies with high attenuation. It offers up to 60% lower DCR than other CAN bus chokes, resulting in much lower losses on differential signal lines.

The 1812CAN Series is qualified to AEC-Q200 Grade 1 standards (-40° to +125°C ambient), making it suitable for automotive and other harsh-environment applications. It features RoHS-compliant, silver-palladium-platinum-glass frit terminations and offers a maximum reflow temperature of 260°C.

Complete technical specifications and free evaluation samples of the 1812CAN Series are available at  www.coilcraft.com

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