TDK increases 3D transponder coil sensitivity

Article By : TDK

The B82453CA 3D transponder coil series for automotive passive entry-passive start applications has 20% higher sensitivity levels compared to its predecessor.

TDK Corp. has released the B82453CA 3D transponder coil family with high sensitivity levels for passive entry-passive start (PEPS) and other access systems for automotive applications.

Measuring 11. x 12.5 x 3.6mm, the series features six types of 3D transponder coils that offer sensitivity levels from 45mV/µT to 83mV/µT and inductance values from 4.75mH to 13.2mH. The center frequency is at 125 kHz.

According to TDK, the core geometry of the 3D transponder coils enables them to have 20% higher sensitivity levels compared to their predecessor or competitor components with comparable geometries and inductance values. This also enables the wake-up function of PEPS in vehicles applications to be activated at greater distances.

The RoHS-compatible 3D transponder coils have an overmolded casing and the terminals of the windings are laser-welded. They feature high mechanical stability, as is proven by the severe drop tests required for PEPS applications. Accordingly, the new transponder coils are qualified to AEC-Q200.

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