Weight reduction – especially now as electric vehicle makers try to extend their battery charge and vehicle range, weight reduction continues to be a major talking point. With TDK’s MP-A28 coil, the thinness capability of the wet process/higher permeability (µ’) material, allows for a Tx coil weight reduction while still maintaining the required charging performance.
R+202:218obust automotive design – automotive applications have stringent requirements not imposed on other applications and end markets. The pre-cracking process of the thin ferrite shield ensures that no additional cracking, and thus loss of performance, can occur in the event of unwanted events such as: mechanical shock, vibration, impacts, thermal shock, etc.
Optional EMI screen – The MP-A28 also has an optional EMI metal mesh screen that is a separate 30 um thick layer. This screen is intended to help meet the automotive CISPR 25 requirements. By placing the screen over the MP-A28’s coil pattern and then electrically grounding it, an effective and light weight EMI noise suppression solution can be obtained. The impact of adding the EMI screen to the stack-up is less than a 1% efficiency decrease.
