EER25.5
EER25.5 is (EER Series) Available Core manufactured by TDK Corporation.
- Part of the EER28 comparator family.
- Part of the EER28 comparator family.
(25/71)
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EER Series EER25.5 Cores(JIS FEER 25.5A)
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
7.5 ± 0.2
- 0
Part No. PC40EER25.5-Z
∗ Coil:
AL-value (n H/N2) 1920±25% (1k Hz, 0.5m A)∗ 2910 min. (100k Hz, 200m T)
Core loss (W) at 100°C 100k Hz, 200m T 0.98 max.
Calculated output power (forward converter mode) 87W (100k Hz)
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(n H/N2)
Center pole gap
NI limit (AT)
10 2
40% 10 2 20%
10 2
10 3 A L-value (n H/N 2)
0.1 Air gap length...
