The 2843009902 is a multi-aperture core made from 43 material, designed for suppression applications, baluns, and other broadband transformers. It provides a typical impedance of 425 Ω at 25 MHz and 587 Ω at 100 MHz, with minimum impedance specified at the 100 MHz test frequency. This burnished core has nominal outer dimensions of 28.7 mm by 28.7 mm with a height of 14.25 mm and weighs 48 grams. Common applications include EMI suppression, broadband transformers, and use in airbag designs to prevent accidental activation.