ETD29, ETD34, ETD39, ETD44, ETD49, ETD54, ETD59 ETD cores have been designed to make optimum use of a given volume of ferrite material for maximum throughput power, specifically for forward converter transformers. The structure, which includes a round center post, approaches a nearly uniform cross-sectional area throughout the core and provides a winding area that minimizes winding losses. ETD cores are used mainly in switched-mode power supplies and permit off-line designs where IEC and VDE isolation requirements must be met. • ETD cores can be supplied with the center post gapped to a mechanical dimension or an ALvalue. • AL value is measured at 1 kHz, B < 10 gauss • Weight indicated is per pair or set. Legend: Symbols & Definition Explanation of part numbers: Digits 1 & 2 = product class, 3 & 4 = material grade. Dimensions Row # Part Number Generic Size A B C D E F Wt. (g) per Set (1) 9578293202 9598293202 9595293202 9578343502 9598343502 9595343502 9578394002 9598394002 9595394002 9578444502 9598444502 9595444502 9578494902 9598494902 9595494902 9578545402 9598545402 9595545402 9578606002 9598606002 9595606002 ETD29 29.80 ± 0.6 1.173 15.80 ± 0.2 0.622 9.50 ± 0.3 0.374 11.00 ± 0.2 0.433 22.00 min 0.866 min 9.50 ± 0.3 0.374 28.00 ETD34 34.20 ± 0.65 1.346 17.30 ± 0.2 0.681 10.80 ± 0.3 0.425 12.10 ± 0.2 0.476 25.60 min 1.008 min 10.80 ± 0.3 0.425 40.00 ETD39 39.10 ± 0.7 1.539 19.80 ± 0.2 0.780 12.70 ± 0.35 0.500 14.60 ± 0.2 0.575 29.30 min 1.154 min 12.70 ± 0.35 0.500 60.00 ETD44 44.00 ± 0.75 1.732 22.30 ± 0.2 0.878 14.80 ± 0.35 0.583 16.50 ± 0.2 0.650 32.50 min 1.280 min 14.80 ± 0.35 0.583 94.00 ETD49 49.00 ± 0.8 1.929 24.70 ± 0.2 0.972 16.30 ± 0.4 0.642 18.10 ± 0.2 0.713 36.10 min 1.421 min 16.30 ± 0.4 0.642 124.00 ETD54 54.20 ± 1 2.134 27.10 ± 0.3 1.067 18.90 ± 0.4 0.744 19.50 ± 0.3 0.768 40.50 min 1.594 min 18.90 ± 0.3 0.744 180.00 ETD59 (EER60) 59.80 ± 1 2.354 30.00 ± 0.25 1.181 21.70 ± 0.4 0.854 22.55 ± 0.25 0.888 43.60 min 1.717 min 21.70 ± 0.4 0.854 274.00 (2) (3) (4) (5) (6) (7) Fair-Rite Products Corp. PO Box 288, One Commercial Row, Wallkill, NY 12589-0288 124 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] Magnetic Core Parameters Table Continued ... Row # Part Number ∑l /A(cm-1) l (cm) Ae(cm2) Ve(cm3) A min(cm2) AL(nH) (1) 9578293202 9598293202 9595293202 9578343502 9598343502 9595343502 9578394002 9598394002 9595394002 9578444502 9598444502 9595444502 9578494902 9598494902 9595494902 9578545402 9598545402 9595545402 9578606002 9598606002 9595606002 9.50 7.07 0.767 5.418 0.709 2200 ±25% 2200 ±25% 2900 ±25% 8.20 7.90 0.972 7.68 0.916 2500 ±25% 2600 ±25% 3570 ±25% 7.20 9.24 1.28 11.85 1.267 3000 ±25% 3000 ±25% 3600 ±25% 6.00 10.35 1.73 17.94 1.717 3600 ±25% 3800 ±25% 5100 ±25% 5.30 11.44 2.135 24.42 2.09 4000 ±25% 4000 ±25% 5700 ±25% 4.70 12.56 2.65 33.30 2.40 5300 ±25% 5400 ±25% 6500 ±25% 3.90 13.87 3.57 49.52 3.23 6650 ±25% 6950 ±25% 8430 ±25% (2) (3) (4) (5) (6) (7) e 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] 125