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TDK磁芯资料手册.pdf
Technical Data
EI12.5 Cores(JIS FEI 12.5)
EI16 Cores(JIS FEI 16)
EI19 Cores
EI22 Cores
EI22/19/6 Cores(JIS FEI 22)
EI25 Cores
EI28 Cores(JIS FEI 28)
EI30 Cores(JIS FEI 30)
EI33/29/13 Cores
EI35 Cores(JIS FEI 35)
EI40 Cores(JIS FEI 40)
EI50 Cores(JIS FEI 50)
EI60 Cores(JIS FEI 60)
EE10/11 Cores(JIS FEE 10.2)
EE13 Cores
SEE16 Cores
EE20/20/5 Cores(DIN 41295)
EE25/19 Cores
EE30/30/7 Cores(DIN 41295)
EE42/42/15 Cores(DIN 41295)
EE55/55/21 Cores(DIN 41295)
EE50.3/51/6 Cores
EE62.3/62/6 Cores
EER25.5 Cores(JIS FEER 25.5A)
EER28 Cores(JIS FEER 28.5A)
EER28L Cores(JIS FEER 28.5B)
EER35 Cores(JIS FEER 35A)
EER40 Cores
EER42 Cores(JIS FEER 42)
EER42/42/20 Cores
ETD19 Cores
ETD24 Cores
ETD29 Cores
ETD34 Cores
ETD39 Cores
ETD44 Cores
ETD49 Cores
PQ20/16 Cores
PQ20/20 Cores
PQ26/20 Cores
PQ26/25 Cores
PQ32/20 Cores
PQ32/30 Cores
PQ35/35 Cores
PQ40/40 Cores
PQ50/50 Cores
LP23/8 Cores
LP22/13 Cores
LP32/13 Cores
RM4 Cores
RM5 Cores
RM6 Cores
RM8 Cores
RM10 Cores
RM12 Cores
RM14 Cores
EPC10 Cores
EPC13 Cores
EPC17 Cores
EPC19 Cores
EPC25 Cores
EPC25B Cores
EPC27 Cores
EPC27N Cores
EPC30 Cores
Maximum Number of Turns on Bobbins
EI and EE Series
EER Series
EC and ETD Series
PQ Series
EP Series
LP Series
RM Series
SMD Series
EPC and EEM Series
Wire Table
(1/71)
001-02 / 20030309 / e148.fm
EI, EE, EER, ETD, PQ, LP, RM, EPC Series
Ferrite
For Switching Power Supplies
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.
Ferrite
For Switching Power Supplies
Technical Data
EI Series EI12.5 Cores
JIS FEI 12.5
(2/71)
001-02 / 20030309 / e148.fm
.
1
0
±
4
2
.
.
6
1
0
–
8
8
.
.
6
1
.
3
0
±
4
2
1
.
.
3
0
±
4
2
1
.
2.3 5.1±0.1
7.4±0.1
4.85±0.15
4.85±0.15
1.5±0.1
Dimensions in mm
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.)
mm–1 1.48
C1
21.3
mm
e
14.4
mm2
Ae
308
mm3
Ve
Acp
11.6
mm2
Acp min. mm2
10.8
17.3
mm2
Acw
g
1.9
Part No.
PC40EI12.5-Z
∗ Coil: ø0.2 2UEW 100Ts
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)
NI limit vs. AL-value for
PC40EI12.5 gapped core (Typical)
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)
Temperature: 100˚C
102
)
T
A
(
t
i
m
i
l
I
N
40%
20%
101
101
102
AL-value(nH/N2)
Note: NI limit shows the point where the exciting
current is 20% and 40% away from its
extended linear part.
/
)
2
N
H
n
(
e
u
a
v
-
L
A
l
Center leg gap
Spacer gap
100
50
)
C
˚
(
T
∆
t
o
p
s
t
o
h
f
o
e
s
i
r
e
r
u
t
a
r
e
p
m
e
T
0.1
Air gap length(mm)
1
0
0
0.2
102
101
0.4
0.6
Total loss Pm(W)
0.8
1
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.
Ferrite
For Switching Power Supplies
Technical Data
EI Series EI16 Cores
JIS FEI 16
(3/71)
001-02 / 20030309 / e148.fm
.
2
0
±
0
4
.
5
0
2
.
0
–
6
1
1
.
5
0
2
.
.
3
0
±
0
6
1
.
2.0
10.2±0.2
12.2±0.2
4.8±0.2
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.)
mm–1 1.75
C1
34.6
mm
e
19.8
mm2
Ae
670
mm3
Ve
Acp
19.2
mm2
Acp min. mm2
17.5
40.3
mm2
Acw
g
3.3
.
3
0
±
0
6
1
.
4.8±0.2
2.0±0.2
Dimensions in mm
Part No.
PC40EI16-Z
∗ Coil: ø0.23 2UEW 100Ts
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)
NI limit vs. AL-value for
PC40EI16 gapped core (Typical)
AL-value vs. Air gap length for
PC40EI16 core (Typical)
Temperature rise vs. Total loss for
EI16 core (Typical)
(Ambient temperature: 25°C)
100
50
)
C
˚
(
T
∆
t
o
p
s
t
o
h
f
o
e
s
i
r
e
r
u
t
a
r
e
p
m
e
T
0
0
0.5
1
1.5
Total loss Pm(W)
2
2.5
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
103
Temperature: 100˚C
103
)
T
A
(
t
i
m
i
l
I
N
102
40%
20%
/
)
2
N
H
n
(
e
u
a
v
-
L
A
l
102
Center leg gap
Spacer gap
101
102
AL-value(nH/N2)
Note: NI limit shows the point where the exciting
current is 20% and 40% away from its
extended linear part.
0.1
Air gap length(mm)
1
Measuring conditions Coil: ø0.23 2UEW 100Ts
Frequency: 1kHz
Level: 0.5mA
• All specifications are subject to change without notice.
Ferrite
For Switching Power Supplies
Technical Data
EI Series EI19 Cores
(4/71)
001-02 / 20030309 / e148.fm
.
5
1
0
±
5
5
4
.
5
7
2
.
0
–
3
4
1
.
5
7
2
.
.
3
0
±
0
0
2
.
2.3
11.15±0.15
13.55±0.25
5.0±0.2
.
3
0
±
0
0
2
.
5.0±0.2
2.3±0.1
Dimensions in mm
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.)
mm–1 1.65
C1
39.6
mm
e
24.0
mm2
Ae
950
mm3
Ve
Acp
22.8
mm2
Acp min. mm2
21.1
55.5
mm2
Acw
g
5.1
Part No.
PC40EI19-Z
∗ Coil: ø0.23 2UEW 100Ts
AL-value (nH/N2)
1400±25% (1kHz, 0.5mA)∗
1930 min. (100kHz, 200mT)
Core loss (W) at 100°C
100kHz, 200mT
0.42 max.
Calculated output power
(forward converter mode)
40W (100kHz)
NI limit vs. AL-value for
PC40EI19 gapped core (Typical)
AL-value vs. Air gap length for
PC40EI19 core (Typical)
Temperature rise vs. Total loss for
EI19 core (Typical)
(Ambient temperature: 25°C)
103
Temperature: 100˚C
103
)
T
A
(
t
i
m
i
l
I
N
102
40%
20%
/
)
2
N
H
n
(
e
u
a
v
-
L
A
l
102
Center leg gap
Spacer gap
100
50
)
C
˚
(
T
∆
t
o
p
s
t
o
h
f
o
e
s
i
r
e
r
u
t
a
r
e
p
m
e
T
102
AL-value(nH/N2)
103
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
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.
Ferrite
For Switching Power Supplies
Technical Data
EI Series EI22 Cores
(5/71)
001-02 / 20030309 / e148.fm
.
5
2
0
±
5
7
5
.
5
4
.
0
–
0
3
1
.
.
5
4
.
3
0
±
0
2
2
.
.
3
0
±
0
2
2
.
4.0 10.55±0.25
14.55±0.25
5.75±0.25
5.75±0.25
4.5±0.2
Dimensions in mm
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.)
mm–1 0.936
C1
39.3
mm
e
42.0
mm2
Ae
1630
mm3
Ve
Acp
33.1
mm2
Acp min. mm2
30.3
38.2
mm2
Acw
g
9.8
Part No.
PC40EI22-Z
∗ Coil: ø0.23 2UEW 100Ts
AL-value (nH/N2)
2400±25% (1kHz, 0.5mA)∗
3360 min. (100kHz, 200mT)
Core loss (W) at 100°C
100kHz, 200mT
0.60 max.
Calculated output power
(forward converter mode)
33W (100kHz)
NI limit vs. AL-value for
PC40EI22 gapped core (Typical)
AL-value vs. Air gap length for
PC40EI22 core (Typical)
Temperature rise vs. Total loss for
EI22 core (Typical)
(Ambient temperature: 25°C)
100
50
)
C
˚
(
T
∆
t
o
p
s
t
o
h
f
o
e
s
i
r
e
r
u
t
a
r
e
p
m
e
T
0
0
0.5
1
1.5
Total loss Pm(W)
2
2.5
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
103
Temperature: 100˚C
103
)
T
A
(
t
i
m
i
l
I
N
102
40%
20%
/
)
2
N
H
n
(
e
u
a
v
-
L
A
l
Center leg gap
102
Spacer gap
102
AL-value(nH/N2)
103
0.1
Air gap length(mm)
1
Note: NI limit shows the point where the exciting
current is 20% and 40% away from its
extended linear part.
Measuring conditions Coil: ø0.23 2UEW 100Ts
Frequency: 1kHz
Level: 0.5mA
• All specifications are subject to change without notice.
Ferrite
For Switching Power Supplies
Technical Data
EI Series EI22/19/6 Cores
JIS FEI 22
(6/71)
001-02 / 20030309 / e148.fm
.
5
2
0
±
5
7
5
.
.
0
3
0
–
5
7
5
1
.
.
0
3
.
4
0
±
0
2
2
.
4.0 10.7±0.2
14.7±0.2
5.75±0.25
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.)
mm–1 1.13
C1
41.8
mm
e
37.0
mm2
Ae
1550
mm3
Ve
Acp
33.1
mm2
Acp min. mm2
30.3
54.8
mm2
Acw
g
8.5
.
4
0
±
0
2
2
.
5.75±0.25
4.0±0.2
Dimensions in mm
Part No.
PC40EI22/19/6-Z
∗ Coil: ø0.23 2UEW 100Ts
AL-value (nH/N2)
2000±25% (1kHz, 0.5mA)∗
2780 min. (100kHz, 200mT)
Core loss (W) at 100°C
100kHz, 200mT
0.64 max.
Calculated output power
(forward converter mode)
48W (100kHz)
NI limit vs. AL-value for
PC40EI22/19/6 gapped core (Typical)
AL-value vs. Air gap length for
PC40EI22/19/6 core (Typical)
Temperature rise vs. Total loss for
EI22/19/6 core (Typical)
(Ambient temperature: 25°C)
103
Temperature: 100˚C
103
)
T
A
(
t
i
m
i
l
I
N
102
40%
20%
/
)
2
N
H
n
(
e
u
a
v
-
L
A
l
Center leg gap
102
Spacer gap
100
50
)
C
˚
(
T
∆
t
o
p
s
t
o
h
f
o
e
s
i
r
e
r
u
t
a
r
e
p
m
e
T
102
AL-value(nH/N2)
103
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
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.
Ferrite
For Switching Power Supplies
Technical Data
EI Series EI25 Cores
(7/71)
001-02 / 20030309 / e148.fm
.
3
0
±
5
6
.
.
0
3
0
–
0
9
1
.
.
0
3
.
5
0
±
3
5
2
.
3.2
12.35±0.25
15.55±0.25
6.75±0.25
.
5
0
±
3
5
2
.
6.75±0.25
2.7±0.2
Dimensions in mm
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.)
mm–1 1.15
C1
47.0
mm
e
41.0
mm2
Ae
1930
mm3
Ve
Acp
43.9
mm2
Acp min. mm2
40.3
77.2
mm2
Acw
g
9.8
Part No.
PC40EI25-Z
∗ Coil: ø0.35 2UEW 100Ts
AL-value (nH/N2)
2140±25% (1kHz, 0.5mA)∗
2950 min. (100kHz, 200mT)
Core loss (W) at 100°C
100kHz, 200mT
0.79 max.
Calculated output power
(forward converter mode)
68W (100kHz)
NI limit vs. AL-value for
PC40EI25 gapped core (Typical)
AL-value vs. Air gap length for
PC40EI25 core (Typical)
Temperature rise vs. Total loss for
EI25 core (Typical)
(Ambient temperature: 25°C)
100
50
)
C
˚
(
T
∆
t
o
p
s
t
o
h
f
o
e
s
i
r
e
r
u
t
a
r
e
p
m
e
T
0
0
0.5
1
1.5
Total loss Pm(W)
2
2.5
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
103
Temperature: 100˚C
103
)
T
A
(
t
i
m
i
l
I
N
102
40%
20%
/
)
2
N
H
n
(
e
u
a
v
-
L
A
l
Center leg gap
102
Spacer gap
102
AL-value(nH/N2)
103
0.1
Air gap length(mm)
1
Note: NI limit shows the point where the exciting
current is 20% and 40% away from its
extended linear part.
Measuring conditions Coil: ø0.35 2UEW 100Ts
Frequency: 1kHz
Level: 0.5mA
• All specifications are subject to change without notice.
Ferrite
For Switching Power Supplies
Technical Data
EI Series EI28 Cores
JIS FEI 28
(8/71)
001-02 / 20030309 / e148.fm
.
3
0
±
2
7
.
5
4
.
7
5
.
.
0
0
+
–
0
8
2
.
0
–
4
8
1
.
.
5
4
.
5
0
±
0
8
2
.
4.5
12.25±0.25
16.75±0.25
10.6±0.2
10.7±0.3
3.5±0.3
Dimensions in mm
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.)
mm–1 0.560
C1
48.2
mm
e
86.0
mm2
Ae
4150
mm3
Ve
Acp
76.3
mm2
Acp min. mm2
71.8
69.8
mm2
Acw
g
22
Part No.
PC40EI28-Z
∗ Coil: ø0.35 2UEW 100Ts
AL-value (nH/N2)
4300±25% (1kHz, 0.5mA)∗
6060 min. (100kHz, 200mT)
Core loss (W) at 100°C
100kHz, 200mT
1.65 max.
Calculated output power
(forward converter mode)
107W (100kHz)
NI limit vs. AL-value for
PC40EI28 gapped core (Typical)
AL-value vs. Air gap length for
PC40EI28 core (Typical)
Temperature rise vs. Total loss for
EI28 core (Typical)
(Ambient temperature: 25°C)
103
)
T
A
(
t
i
m
i
l
I
N
102
Temperature: 100˚C
40%
20%
103
102
Center leg gap
Spacer gap
100
50
)
C
˚
(
T
∆
t
o
p
s
t
o
h
f
o
e
s
i
r
e
r
u
t
a
r
e
p
m
e
T
/
)
2
N
H
n
(
e
u
a
v
-
L
A
l
102
AL-value(nH/N2)
103
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.
(approx. 400×300×300cm)
Measuring point
Core
Coil
• All specifications are subject to change without notice.
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