9578343502 FAIR-RITE | Alldatasheet
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ETD Cores (9578343502) Part Number: 9578343502
78 ETD CORE SET
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. Catalog Drawing 3D Model Weight indicated is per pair or set. Weight: 40 (g) Chart Legend Σl/ A : Core Constant, le : Effective Path Length, Ae : Effective Cross- Sectional Area, Ve : Effective Core Volume AL : Inductance Factor Explanation of Part Numbers: Digits 1 & 2 = product class and 3 & 4 = material grade. Electrical Properties AL(nH) 2500 ±25% Ae(cm ) 0.972 Σl/ A(cm ) 8.2 le(cm) 7.9 Ve(cm ) 7.68 Amin(cm ) 0.916 AL value is measured at 1 kHz, B < 10 gauss Fair- Rite Products Corp. • One Commercial Row, Wallkill, New York 12589-0288 888-324-7748 • 845-895-2055 • Fax: 845-895-2629 • ferrites@fair- rite.com • www.fair- rite.com Dim mm mm tol nominal inch inch misc. A 34.2 ± 0.65 1.346 _ B 17.3 ± 0.20 0.681 _ C 10.8 ± 0.30 0.425 _ D 12.1 ± 0.20 0.476 _ E 25.6 min 1.008 min F 10.8 ± 0.30 0.425 _