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Ferrite For Switching Power Supplies
TECHNICAL DATA
EI Cores ( to EI60)
EE Cores (EE10/11 to )
EER Cores ( to EER42/42/20)
ETD Cores (ETD19 to ETD49)
PQ Cores (PQ20/16 to PQ50/50)
LP Cores (LP23/8 to LP32/13)
RM Cores (RM4 to RM14)
EPC Cores (EPC13 to EPC30)
• All specifications are subject to change without notice.
002-01 / 20040913 /
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EI Series Cores(JIS FEI )
Parameter
Core factor C1 mm–1
Effective magnetic path length e mm
Effective cross-sectional area Ae mm2
0
3
– Effective core volume Ve mm 308
± ±
± 2
Cross-sectional center leg area Acp mm
Minimum cross-sectional area Acp min. mm2
Cross-sectional winding area of core Acw mm2
Weight (approx.)
±
±