EER35

(25/71) www.datasheet4u.com EER Series EER25.5 Cores(JIS FEER 25.5A) 2.6 Parameter Core factor Effective magnetic path length Effective cross-sectional area Effective core volume Cross-sectional center pole area Minimum cross-sectional center pole 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 1.08 48.2 44.8 2160 44.2 42.4 79.4 11 ø7.5 ± 0.15 25.5 ± 0.5 6.2 ± 0.2 9.3 ± 0.2 Dimensions in mm 2.6 7.5 ± 0.2 19.8 – 0 Part No. PC40EER25.5-Z ∗ Coil: AL-value (nH/N2) 1920±25% (1kHz, 0.5mA)∗ 2910 min. (100kHz, 200mT) Core loss (W) at 100°C 100kHz, 200mT 0.98 max. Calculated output power (forward converter mode) 87W (100kHz) ø0.35 2UEW 100Ts NI limit vs. AL-value for PC40EER25.5 gapped core (Typical) Temperature: 100˚C 10 3 AL-value vs. Air gap length for PC40EER25.5 core (Typical) 10 3 Temperature rise vs. Total loss for EER25.5 core (Typical) (Ambient temperature: 25°C) 100 Temperature rise of hot spot ∆T (˚C) AL-value(nH/N2) Center pole gap NI limit (AT) 10 2 50 40% 10 2 20% 10 2 10 3 A L-value (nH/N 2) 101 0.1 Air gap length (mm) 1 0 0 0.5 1 1.5 Total loss Pm (W) 2 2.5 Note: NI limit shows the point where the exciting current is 20% and 40% away from its extended linear part. Measuring conditions Coil: ø0.35 2UEW 100Ts Frequency: 1kHz Level: 0.5mA Note: The temperature rise is measured in the room whose temperature and humidity are fixed to 25°C and 45(%)RH. respectively...