PC40EERxx
PC40EERxx is Cores manufactured by TDK Corporation.
- Part of the PC40EE20 comparator family.
- Part of the PC40EE20 comparator family.
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Ferrite For Switching Power Supplies
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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
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EI Series EI12.5 Cores(JIS FEI 12.5)
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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
5.1± 0.1 4.85 ± 0.15 4.85 ± 0.15 1.5 ± 0.1 Dimensions in mm
7.4 ± 0.1
12.4 ± 0.3
2.4 ± 0.1
- 0
Part No. PC40EI12.5-Z
∗ Coil:
AL-value (n H/N2) 1200±25% (1k Hz, 0.5m A)∗ 2120 min. (100k Hz, 200m T)
Core loss (W) at 100°C 100k Hz, 200m T 0.12 max.
Calculated output power (forward converter mode) 8.8W (100k Hz)
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)
NI limit (AT)
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