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(1/71)
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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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 10
10 2 A L-value (nH/N 2)
101
0.1 Air gap length (mm)
1
0
0
0.2
0.4 0.6 0.8 Total loss Pm (W)
1
Note: NI limit shows the point where the exciting current is 20% and 40% away from its extended linear part.
Measuring conditions • Coil: ø0.2 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. (approx. 400×300×300cm)
Measuring point Core
Coil
• All specifications are subject to change without notice.
002-02 / 20050114 / e148.fm
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EI Series EI16 Cores(JIS FEI 16)
2.05
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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 1.75 34.6 19.8 685 19.2 17.5 40.3 3.3
16.0 ± 0.3
12.2 ± 0.2
4.8 ± 0.2
2.05
2.0
10.2 ± 0.2
4.8 ± 0.2
2.0 ± 0.2
Dimensions in mm
16.0 ± 0.3
4.0 ± 0.2
11.6– 0
Part No. PC40EI16-Z
∗ Coil:
AL-value (nH/N2) 1100±25% (1kHz, 0.5mA)∗ 1750 min. (100kHz, 200mT)
Core loss (W) at 100°C 100kHz, 200mT 0.31 max.
Calculated output power (forward converter mode) 29W (100kHz)
ø0.23 2UEW 100Ts
NI limit vs. AL-value for PC40EI16 gapped core (Typical)
10 3 Temperature: 100˚C
AL-value vs. Air gap length for PC40EI16 core (Typical)
10 3
Temperature rise vs. Total loss for EI16 core (Typical) (Ambient temperature: 25°C)
100 Temperature rise of hot spot ∆T (˚C)
AL-value(nH/N2)
NI limit (AT)
40% 10 2 20%
Center leg gap 10 2 Spacer gap
50
101
10 2 A L-value (nH/N 2)
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: ø0.23 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. (approx. 400×300×300cm)
Measuring point Core
Coil
• All specifications are subject to change without notice.
002-02 / 20050114 / e148.fm
(4/71)
EI Series EI19 Cores
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2.75
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 1.65 39.6 24.0 950 22.8 21.1 55.5 5.1
4.55 ± 0.15
20.0 ± 0.3
13.55 ± 0.25
5.0 ± 0.2
2.75
2.3
11.15 ± 0.15
5.0 ± 0.2
2.3 ± 0.1
Dimensions in mm
20.0 ± 0.3
14.3 – 0
Part No. PC40EI19-Z
∗ Coil:
AL-value (nH/N2) 1400±25% (1kHz, 0.5mA)∗ 1830 min. (100kHz, 200mT)
Core loss (W) at 100°C 100kHz, 200mT 0.42 max.
Calculated output power (forward converter mode) 40W (100kHz)
ø0.23 2UEW 100Ts
NI limit vs. AL-value for PC40EI19 gapped core (Typical)
10 3 Temperature: 100˚C
AL-value vs. Air gap length for PC40EI19 core (Typical)
10 3
Temperature rise vs. Total loss for EI19 core (Typical) (Ambient temperature: 25°C)
100 Temperature rise of hot spot ∆T (˚C)
AL-value(nH/N2)
NI limit (AT)
Center leg gap 10 2 Spacer gap
50
40% 10 2 20%
10 2 A L-value (nH/N 2)
10 3
0.1
1 Air gap length (mm)
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 exte.