Fair-Rite has tooled several special core geometries in the 43 & 77 material for suppression of conducted EMI. • These suppression cores are controlled for impedance only. The minimum impedance is typically the listed impedance less 20%. Single turns tests are performed on the 4193A Vector Impedance Analyzer with the shortest practical wire length. • Performance curves for these suppression components are on our web site. • For any non-catalog suppression core design feel free to contact our customer service or application group for feasibility and availability. • The “C” dimension, the core length, can be modified to suit specific applications. • Explanation of Part Numbers: Digits 1&2 = product class and 3&4 = the material grade. Legend Dimensions (Top numbers are in millimeters, bottom numbers are in nominal inches. ) + Test frequency Parts for Fig’s 3 & 4 tested in pairs Broadband Frequencies 25-300 MHz (43 material) Part Number Fig. 2643167851 1 2643165151 3 2643175451 4 A B 38.85 ±0.75 1.530 82.60 ±1.60 3.250 17.80 ±0.40 0.700 26.15 ±0.75 1.030 13.10 ±0.30 0.516 12.70 ±0.50 0.500 C D 28.60 ±0.70 1.125 28.00 ±0.70 1.100 20.32 ±0.50 0.800 E 26.00 ±0.60 1.025 12.95 ±0.25 0.510 6.60 ±0.25 0.260 12.95 ±0.25 0.510 19.05 ±0.40 0.750 5.08 ±0.25 0.200 Wt. (g) 10 MHz Impedance (Ω) 25 100 250 + + MHz MHz MHz 85.00 60 94 169 250 109.00 100 163 280 340 19.00 75 119 180 270 Lower Frequencies < 50 MHz (77 material) Part Number Fig. 2677006302 2 2677102402 2 A 9.50 ±0.25 0.375 25.90 ±0.75 1.020 B 4.75 +0.30 0.193 12.80 ±0.25 0.505 C 10.40 ±0.25 0.410 21.30 ±0.50 0.840 Wt. (g) 1 Impedance (Ω) 10 25 MHz + + MHz MHz 2.20 25 40 33 41.00 52 25 23 Fair-Rite Products Corp. PO Box 288, One Commercial Row, Wallkill, NY 12589-0288 Phone: (888) FAIR RITE / (845) 895-2055 • Fax: (888) FERRITE / (845) 895-2629 • (888) 324-7748 (888) 337-7483 E Web: www.fair-rite.com -mail: [email protected] 91