TDK has extended its range of common-mode filters for automotive networking applications by introducing the ACT45R optimised for FlexRay networks.

The filter joins the ACT45B/S filters for CAN infrastructures, sharing TDK's proprietary coil-core technology and enhanced coil-winding process to maximise common-mode impedance while appearing almost invisible to network traffic.

The ACT45x series achieve common-mode impedance up to 2kohm/10kHz, which is three-times higher than alternative devices. By also achieving an inductive-coupling coefficient of 0.99, these devices maximise signal integrity as well as noise immunity.

By specifying ACT45x filters for operation up to 150 deg C, they will work at the industry-standard 125°C maximum for CAN and FlexRay applications. This is achieved through an enhanced structure capable of resisting thermal stresses at PCB interconnections, as well as the use of shock-resistant conductive adhesive and stress-absorbing internal construction.

The I-shaped core of the ACT45x enables a compact footprint of 4.5x3.2x2.8mm.

See http://www.tdk-components.eu