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Ferrite Cores
For Power Supply EER Cores
CORE SHAPES AND DIMENSIONS/CHARACTERISTICS
Type EER25.5 EER28 EER28L EER35 EER40 EER42 EER42/42/20 EER49
øD øD A A
EER Series
Fig. 1 2 2 1 1 1 2 1
B Fig.1
C
B Fig.2
C
Dimensions (mm) A B 25.5±0.5 9.3±0.2 28.55±0.55 14±0.2 28.55±0.55 16.9±0.25 35±0.5 20.7±0.2 40±0.5 22.4±0.2 42±0.6 22.4±0.2 42.15±0.65 21.2±0.2 49±0.8 19±0.3
C 7.5±0.2 11.4±0.25 11.4±0.25 11.3±0.2 13.3±0.25 15.5±0.25 19.6±0.4 17.2±0.4
øD 7.5±0.15 9.9±0.25 9.9±0.25 11.3±0.15 13.3±0.25 15.5±0.25 17.3±0.25 17.2±0.25
Ae (mm2) 44.8 82.1 81.4 107 149 194 240 231
le (mm) 48.2 64 75.5 90.8 98 98.8 98.6 91.3
Weight (g) 11 28 33 52 78 102 116 110
ELECTRICAL CHARACTERISTICS WITHOUT AIR GAP
Part No. PC40EER25.
BEER-28L-1112CPH Datasheet
