Japanese electronics maker TDK has expanded its YFF collection of three-terminal filters for automotive purposes to incorporate greater voltages as much as 35 V and better capacitances as much as 4.7 µF.
Such elements are used to suppress voltage variation and high-frequency noise, which may trigger system malfunctions. They can be utilized for smoothing, filtering and decoupling energy traces in cars. Mass manufacturing of the product collection started in June 2025.
The miniaturization of automotive digital techniques is rising demand for measures to stop system malfunctions. Quite a few capacitors are sometimes employed in such purposes, however the variety of elements have to be decreased due to the miniaturization of those techniques. To handle these challenges, demand is rising for three-terminal filters, characterised by a low equal collection inductance (ESL).
By optimizing the fabric choice and product design, the brand new merchandise characteristic greater stand up to voltage, starting from 6.3 V to 35 V and better capacitance, now starting from 0.47 ?F to 4.7 ?F.
The 35 V product has an insertion lack of 40 dB (4 MHz to 2 GHz) and can be utilized for a broader vary of energy traces, together with each enter and output of power-supply techniques, whereas the 4.7 ?F product has an insertion lack of 30 dB (300 kHz to three GHz) and is more practical as enter capacitors than typical merchandise in lowering voltage fluctuation and countering high-frequency noise. Furthermore, relying on set utilization situations, it’s doable to halve the part rely required to suppress voltage fluctuations to the identical extent from the MLCC.
The filters adjust to the AEC-Q200 Automotive Electronics Council requirements for passive elements for cars.
Supply: TDK
