Multi- Aperture cores (2843002402) Part Number: 2843002402 43 MULTI- APERTURE CORE Explanation of Part Numbers: Digits 1 & 2 = Product Class Digits 3 & 4 = Material Grade Last digit 2 = Burnished Multi- aperture cores are used in suppression applications and in balun (balance- unbalance) and other broadband transformers. They are also employed in airbag designs to prevent accidental activation. All multi- aperture cores are supplied burnished. Our Multi- Aperture Core Kit (part number 0199000036) is available for prototype evaluation. For any multi- aperture requirement not listed here, feel free to contact our customer service group for availability and pricing. Catalog Drawing 3D Model Weight: 0.5 (g) Dim mm mm tol nominal inch inch misc. A 7 0.25 0.276 B 6.2 0.25 0.244 C 4.2 -0.25 0.16 E 2.9 0.10 0.114 H 1.7 +0.20 0.071 Chart Legend + Test frequency Typical Impedance () 25 MHz 74 + 100 MHz 106 Multi- aperture cores in 73 and 43 materials are controlled for impedance only. The 61 NiZn material is controlled for both impedance and A value. The high frequency 67 material is controlled for A value. Minimum impedance values are specified for L L the + marked frequencies. The minimum impedance is listed on our catalog drawing. Catalog Drawing Multi- aperture cores in 73 and 43 material are measured for impedance on the E4990A Impedance Analyzer. The 61 and 67 multi- aperture cores are tested on the E4991A / HP4291B Impedance Analyzer. All impedance measurements are performed with a single turn to both holes, using the shortest practical wire length. The 61 and 67 material multi- hole beads are tested for A value. The test frequency is 10 kHz at < 10 gauss. The test winding is L five turns wound through both holes.CSV Download Fair- Rite Products Corp. One Commercial Row, Wallkill, New York 12589-0288 888-324-7748 845-895-2055 Fax: 845-895-2629 emailprotected www.fair- rite.com