PC40EE30

(1/71) Ferrite For Switching Power Supplies www.DataSheet4U.com TECHNICAL DATA EI Cores (EI12.5 to EI60) EE Cores (EE10/11 to EE62.3/62/6) EER Cores (EER25.5 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. 002-02 / 20050114 / e148.fm (2/71) EI Series EI12.5 Cores(JIS FEI 12.5) www.DataSheet4U.com 1.6 Parameter Core factor Effective magnetic path length Effective cross-sectional area Effective core volume Cross-sectional center leg area Minimum cross-sectional area Cross-sectional winding area of core Weight (approx.) C1 e Ae Ve Acp Acp min. Acw mm–1 mm mm2 mm3 mm2 mm2 mm2 g 1.48 21.3 14.4 308 11.6 10.8 17.3 1.9 12.4 ± 0.3 2.3 5.1± 0.1 4.85 ± 0.15 4.85 ± 0.15 1.5 ± 0.1 Dimensions in mm 7.4 ± 0.1 1.6 12.4 ± 0.3 2.4 ± 0.1 8.8 – 0 Part No. PC40EI12.5-Z ∗ Coil: AL-value (nH/N2) 1200±25% (1kHz, 0.5mA)∗ 2120 min. (100kHz, 200mT) Core loss (W) at 100°C 100kHz, 200mT 0.12 max. Calculated output power (forward converter mode) 8.8W (100kHz) ø0.2 2UEW 100Ts NI limit vs. AL-value for PC40EI12.5 gapped core (Typical) Temperature: 100˚C AL-value vs. Air gap length for PC40EI12.5 core (Typical) Temperature rise vs. Total loss for EI12.5 core (Typical) (Ambient temperature: 25°C) 100 NI limit (AT) 10 2 40% 20% 10 2 Center leg gap Spacer gap Temperature rise of hot spot ∆T (˚C) AL-value(nH/N2) 50 101 1 ...