Ferrite cores - Kolektor

www.kolektor.comWideband transformersEP and ER ferrite cores manufactured of 15G, 35G, 45G and 55G materials are the most popular options for smallSMPS transformers. For pulse transformers, however, U and PQ cores manufactured with 19G and 22G materialsare recommended. For DSL transformers EP, EPX, RM and pot cores, from 12G material with very high µ and lowTHD are recommended. All cores are available with or without air gap.EP cores: (Fig.11)DIMENSIONSEFFECTIVE PARAMETERSTypea b d2 d3 h1 h2 Ie Ae / Amin Vemm mm mm mm mm mm mm mm2 mm3EP 5 6.15-0.3 3.9-0.2 4.25+0.3 1.8-0.2 2.85-0.1 1.9+0.2 9,7 3,0 / 2,27 28,7EP 6 6.15-0.3 3.9-0.2 4.25+0.3 1.8-0.2 3.05-0.1 2.12+0.15EP 7 9.4-0.4 6.5-0.3 7.2+0.4 3.4-0.2 3.75-0.1 2.5+0.2 15,7 10,3 / 8,5 162EP 10 11.8-0.6 7.85-0.4 9.2+0.4 3.15+0.3 5.2-0.2 3.6+0.2 19,3 11,3 / 8,6 215EP 13 12.8-0.6 9.0-0.4 9.7+0.4 4.5-0.3 6.5-0.15 4.5+0.2 24,2 19,5 / 14,9 472EP 17 18.5-1.0 11.25-0.4 11.5+1.0 5.85-0.35 8.5-0.2 5.6+0.3 28,5 33,9 / 25,5 966EP 20 24.5-1.0 15.3-0.7 16.1+0.8 9.0-0.5 10.8-0.2 7.0+0.3 40,0 78,8 / 60,0 3120AL [Nh]Type 19G 12G 45G 55G+30/-20% +40/-30% +30/-20% +30/-20%EP 5 720 2000 450 380EP 6 700 1900 420 360EP 7 2000 5000 1100 950EP 10 1900 4400 1100 950EP 13 2800 7000 1600 1300EP 17 4300 10000 2400 1800EP 20 6700 17500 4000 3200Fig. 11EPX cores: (Fig.12)DIMENSIONSEFFECTIVE PARAMETERSTypea b d2 d3 h1 h2 Ie Ae / Amin Vemm mm mm mm mm mm mm mm2 mm3EPX 7 9,4-0,4 9,4-0,4 7,2+0,4 3,4-0,2 3,75-0,1 2,3+0,2 15,4 16,5 / 14,5 255EPX 9 9,4-0,4 9,4-0,4 7,2+0,4 3,4-0,2 4,75-0,2 3,3+0,2 18,7 16,3 / 14,5 304AL [Nh]Type 19G 12G 45G 55G+30/-20% +40/-30% +30/-20% +30/-20%EPX 7 3000 9000 1650 1450EPX 9 2700 7000 1500 1300Fig. 1213