EMI Cores
ESD-FPL Series Solid Cores for Flat Cables
for High Frequency (Bare)
Overview
Applications
The KEMET ESD-FPL Series solid cores are designed for
use on flat cables. A wide range of Nickel Zinc (NiZn)
options are available in bare type and allows for targeting of
specific high frequency ranges.
EMI cores are part of a family of passive components which
address the issues of noise or electromagnetic interference
(EMI) in circuits or systems.
• Office equipment
• Home appliances
• Inkjet printers
• Consumer electronics
• Industrial equipment
• Test and measurement equipment
• Medical equipment
• Audio-visual equipment
Benefits
• NiZn ≤ 500 MHz (FM band range) options available
• Solid construction
• Wide range of products available
• Thin and minimal gap solutions available
Built Into Tomorrow
© KEMET Electronics Corporation • One East Broward Boulevard
Fort Lauderdale, FL 33301 USA • 954-766-2800 • www.kemet.com
E5004_ESD-FPL • 11/14/2023
1
EMI Core – ESD-FPL Series Solid Cores for Flat Cables for High Frequency (Bare)
Part Number System
ESD-
FPL-
14.5-
3
Series
Form Type
Core Size
Outer Length Code (mm)
Core Size
Thickness (mm)
ESD-
Solid
See Table 1
See Table 1
Core Material and Effective Frequency Range
There are two ferrite material options for KEMET
EMI Cores: Nickel-Zinc (NiZn) and Manganese
Zinc (MnZn). Each core material has a different
resistance and effective frequency range. The
MnZn core material has a lower resistance
compared to the NiZn; therefore, adequate
insulation is required before use.
It is recommended to measure the actual
frequency range effectiveness in the target
application.
© KEMET Electronics Corporation • One East Broward Boulevard
Fort Lauderdale, FL 33301 USA • 954-766-2800 • www.kemet.com
1,000
AM band range
Impedance (Ω)
The NiZn core material is typically effective for
frequencies in the MHz band range such as the
FM-band, while the MnZn core material is typically
effective for the kHz band range such as the AMband. See Figure 1.
Figure 1 – Effective band range of Mn-Zn and Ni-Zn ferrite core material.
(Representative example, measured with same-dimension ring core)
FM band range
Ni-Zn series core
100
Mn-Zn series core
10
1
0.01
0.1
1
10
100
1,000
Frequency (MHz)
E5004_ESD-FPL • 11/14/2023
2
EMI Core – ESD-FPL Series Solid Cores for Flat Cables for High Frequency (Bare)
Magnetic Permeability of Ferrite Material
In order to achieve most efficient noise reduction, it is important to select the material according to the target frequency
band.
Depending on its magnetic permeability, a particular ferrite material will be effective in a certain frequency band.
A schematic representation of the relationship between the magnetic permeability of each material and the corresponding
effective band range is shown in Figure 4.
Materials with higher magnetic permeability are effective in the lower frequency range, while those with lower magnetic
permeability are effective in the higher frequency range. Thus, Mn-Zn products are mainly used for reducing conduction
noise, while Ni-Zn products are commonly used for radiation noise countermeasures.
The effective frequency range varies depending on core shape, size and number of turns.
This frequency dependence of the magnetic permeability as shown in the figure serves for reference purposes only and it
should be tested on the actual device to determine its effectiveness.
S18H, S15H, 10H, 7H, 7HT, 5H, 5HT, HR1, 1400L and 700L are KEMET's proprietary ferrite material names.
Other materials can also be available on request.
Figure 2 - Relationship between the magnetic permeability of each material and its effective frequency range
© KEMET Electronics Corporation • One East Broward Boulevard
Fort Lauderdale, FL 33301 USA • 954-766-2800 • www.kemet.com
E5004_ESD-FPL • 11/14/2023
3
EMI Core – ESD-FPL Series Solid Cores for Flat Cables for High Frequency (Bare)
Environmental Compliance
All KEMET EMI cores are RoHS compliant.
Dimensions – Millimeters
Figure 1
Figure 2
Figure 3
See Table 1 for dimensions
Installation Example
© KEMET Electronics Corporation • One East Broward Boulevard
Fort Lauderdale, FL 33301 USA • 954-766-2800 • www.kemet.com
E5004_ESD-FPL • 11/14/2023
4
EMI Core – ESD-FPL Series Solid Cores for Flat Cables for High Frequency (Bare)
Performance Characteristics
Item
Performance Characteristics
Operating temperature
Frequency range
Outer length
Outer width
Inner length
Inner width
Thickness
Type
Material
−25°C to +85°C
High frequency
14.5 – 80.0 mm
2.75 – 12.0 mm
11.0 – 68.6 mm
0.7 – 2.2 mm
3.0 – 15.0 mm
Bare
NiZn 700L
Table 1A – Ratings & Part Number Reference
Part
Number
ESD-FPL-14.5-3
ESD-FPL-14.5-5
ESD-FPL-14.5-8
ESD-FPL-14.5-10
ESD-FPL-16-12
ESD-FPL-18-8
ESD-FPL-18-12
ESD-FPL-18.7-3
ESD-FPL-18.7-12
ESD-FPL-21-8
ESD-FPL-13
ESD-FPL-24.5-8
ESD-FPL-25-12
ESD-FPL-27-8
ESD-FPL-7
ESD-FPL-15
ESD-FPL-28-10
ESD-FPL-32-8
ESD-FPL-32-12
ESD-FPL-20-12
Part
Number
Dimensions (mm)
Weight
A
B
C
D
E
(g)
14.5 ±0.5
14.5 ±0.7
14.5 ±0.7
14.5 ±0.6
16.0 ±0.5
18.0 ±1.0
18.0 ±0.7
18.7 ±0.6
18.7 ±0.6
21.0 ±0.8
23.8 ±0.7
24.5 ±1.0
25.0 ±0.9
27.0 ±1.0
28.0 ±0.6
28.0 ±0.5
28.0 ±1.0
32.0 ±1.0
32.0 ±1.0
33.2 ±1.0
11.0 ±0.7
11.0 ±0.8
11.0 ±0.8
11.0 ±0.8
11.5 ±0.3
14.0 ±0.6
14.0 ±0.5
15.0 ±0.6
15.0 ±0.6
17.0 ±0.7
18.8 ±0.5
20.0 ±0.8
21.0 ±0.8
22.0 ±0.7
23.5 ±0.5
23.0 ±0.4
24.0 ±0.8
28.0 ±0.7
28.0 ±0.7
27.0 ±1.0
2.75 ±0.3
2.75 ±0.4
2.75 ±0.4
2.75 ±0.4
4.5 ±0.3
5.0 ±0.4
5.0 ±0.3
2.75 ±0.4
2.75 ±0.4
5.0 ±0.3
6.3 ±0.5
4.5 ±0.5
5.0 ±0.5
6.5 ±0.3
7.7 ±0.3
7.7 ±0.3
5.0 ±0.5
5.0 ±0.3
5.0 ±0.3
8.0 ±0.6
3.0 ±0.3
5.0 ±0.5
8.0 ±0.5
10.0 ±0.5
12.0 ±0.4
8.0 ±0.5
12.0 ±0.3
3.0 ±0.5
12.0 ±0.5
8.0 ±0.3
15.0 ±0.6
8.0 ±0.5
12.0 ±0.6
8.0 ±0.2
7.0 ±0.6
14.6 ±0.4
10.0 ±0.5
8.0 ±0.3
12.0 ±0.3
12.0 ±0.6
0.80 ±0.15
0.80 ±0.30
0.80 ±0.30
0.80 ±0.20
0.85 ±0.15
1.00 ±0.20
1.00 ±0.15
0.70 ±0.20
0.70 ±0.20
0.80 ±0.30
1.10 ±0.50
0.90 ±0.20
0.85 ±0.35
1.30 ±0.15
1.50 ±0.25
1.50 ±0.20
0.80 +0.50,-0.30
0.80 ±0.15
0.80 ±0.15
1.50 ±0.60
0.40
0.70
1.10
1.40
3.40
2.90
4.50
0.50
2.10
3.50
9.30
3.50
5.70
5.50
5.80
12.40
5.50
5.40
8.00
12.20
A
B
C
D
E
(g)
Dimensions
Weight
Applicable
Cable
Shape
Remarks
FPC, FFC
FPC, FFC
FPC, FFC
FPC, FFC
8 Core
10 Core
FPC, FFC
FPC, FFC
FPC, FFC
FPC, FFC
13 Core
FPC, FFC
16 Core
16 Core
16 Core
16 Core
FPC, FFC
FPC, FFC
FPC, FFC
20 Core
Figure 3
Figure 3
Figure 3
Figure 3
Figure 3
Figure 3
Figure 3
Figure 3
Figure 3
Figure 3
Figure 3
Figure 3
Figure 3
Figure 3
Figure 2
Figure 2
Figure 3
Figure 3
Figure 3
Figure 3
Thin type
Thin type
Thin type
Thin type
Applicable
Cable
Shape
Remarks
Thin type
Thin type
Frequency
Range1
Material
≤ 500 MHz
MnZN
(FM band range)
NiZn
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
–
–
–
–
–
–
–
–
–
–
–
–
–
–
–
–
–
–
–
–
700L
700L
700L
700L
700L
700L
700L
700L
700L
700L
700L
700L
700L
700L
700L
700L
700L
700L
700L
700L
≤ 300 MHz
(FM band range)
MnZn
NiZn
Frequency Range1
Material
Frequency range is for reference only. Please test with actual device before use.
* Other sizes available on request. Please contact KEMET.
1
© KEMET Electronics Corporation • One East Broward Boulevard
Fort Lauderdale, FL 33301 USA • 954-766-2800 • www.kemet.com
E5004_ESD-FPL • 11/14/2023
5
EMI Core – ESD-FPL Series Solid Cores for Flat Cables for High Frequency (Bare)
Table 1A – Ratings & Part Number Reference cont.
Dimensions (mm)
Part
Number
Weight
Applicable
Cable
Shape
Frequency
Range1
Remarks
Material
≤ 500 MHz
MnZN
(FM band range)
A
B
C
D
E
(g)
ESD-FPL-20-15
ESD-FPL-33.5-8
ESD-FPL-34-15
ESD-FPL-35-8
ESD-FPL-16
ESD-FPL-38-12
ESD-FPL-38.5-8
ESD-FPL-38.5-12
ESD-FPL-40-10
ESD-FPL-40-12
ESD-FPL-40-15
ESD-FPL-26
33.2 ±0.8
33.5 ±1.0
34.0 ±1.0
35.0 ±1.5
37.0 ±0.8
38.0 ±1.2
38.5 ±1.2
38.5 ±1.2
40.0 ±1.5
40.0 ±1.5
40.0 ±1.0
41.2 ±1.0
27.0 ±0.8
27.5 ±0.8
30.0 ±0.7
30.0 ±1.0
25.4 ±0.8
34.0 ±0.8
35.0 ±0.8
35.0 ±0.8
34.8 ±1.0
34.8 ±1.5
34.8 ±1.0
35.0 ±1.0
8.0 ±0.5
6.5 ±0.5
6.0 ±0.3
8.0 ±0.5
12.0 ±0.4
5.0 ±0.5
4.0 ±0.5
4.0 ±0.5
6.5 ±0.5
6.5 ±0.5
6.5 ±0.5
7.7 ±0.6
15.0 ±0.4
8.0 ±0.4
15.0 ±0.3
8.0 ±0.8
12.7 ±0.4
12.0 ±0.5
8.0 ±0.5
12.0 ±0.6
10.0 ±0.5
12.0 ±0.8
15.0 ±0.6
15.0 ±0.4
1.50 ±0.50
1.50 ±0.40
0.80 ±0.15
1.30 ±0.35
1.90 ±0.20
0.80 ±0.30
0.80 ±0.25
0.80 ±0.30
1.30 ±0.30
1.30 ±0.55
1.30 ±0.25
1.50 ±0.60
15.40
7.00
12.60
8.80
24.90
9.40
4.90
7.30
10.20
11.90
15.10
18.20
20 Core
20 Core
FPC, FFC
22 Core
16 Core
FPC, FFC
FPC, FFC
FPC, FFC
26 Core
26 Core
26 Core
26 Core
Figure 3
Figure 3
Figure 3
Figure 3
Figure 1
Figure 3
Figure 3
Figure 3
Figure 3
Figure 3
Figure 3
Figure 3
X
X
X
X
X
X
X
X
X
X
X
X
–
–
–
–
–
–
–
–
–
–
–
–
700L
700L
700L
700L
700L
700L
700L
700L
700L
700L
700L
700L
ESD-FPL-45.2-8
ESD-FPL-45-12
ESD-FPL-49.6-12
ESD-FPL-57.6-12
ESD-FPL-34
ESD-FPL-50
45.2 ±1.2
45.2 ±1.0
49.6 ±1.2
57.6 ±1.2
60.0 ±0.8
80.0 ±1.0
40.0 ±1.0
40.0 ±1.0
44.5 ±1.0
52.0 ±1.0
48.5 ±0.8
68.6 ±1.0
6.5 ±0.5
6.5 ±0.6
6.5 ±0.7
6.5 ±0.8
12.0 ±0.8
12.0 ±1.0
8.0 ±0.5
12.0 ±0.6
12.0 ±0.5
12.0 ±0.7
12.7 ±0.5
12.7 ±0.5
1.30 ±0.30
1.50 ±0.40
1.30 ±0.40
1.30 ±0.70
2.20 ±0.30
1.90 ±0.30
9.50
13.70
15.00
17.70
37.70
51.20
30 Core
30 Core
32 Core
40 Core
34 Core
50 Core
Figure 3
Figure 3
Figure 3
Figure 3
Figure 1
Figure 1
X
X
X
X
X
X
–
–
–
–
–
–
700L
700L
700L
700L
700L
700L
A
B
C
D
E
(g)
Applicable
Cable
Shape
MnZn
NiZn
Part
Number
Dimensions
Weight
≤ 300 MHz
(FM band range)
Remarks
Frequency Range1
NiZn
Material
Frequency range is for reference only. Please test with actual device before use.
* Other sizes available on request. Please contact KEMET.
1
Table 1B – Not for New Design Ratings & Part Number Reference
Part
Number
ESD-FPL-18-6
ESD-FPL-18.7-7
ESD-FPL-18.7-10
ESD-FPL-18.7-12
ESD-FPL-21.5-8
ESD-FPL-23.8-7
ESD-FPL-24-8
ESD-FPL-24.5-6
ESD-FPL-31-9
ESD-FPL-31-12
ESD-FPL-33.5-10
ESD-FPL-33.5-12
ESD-FPL-35-5
Part
Number
Dimensions (mm)
A
B
C
D
E
18.0
18.7
18.7
18.7
21.5
23.8
24.0
24.5
31.0
31.0
33.5
33.5
35.0
14.0
15.0
15.0
15.0
16.5
18.8
19.0
20.0
27.0
27.0
27.5
27.5
30.0
5.00
2.75
2.75
2.75
6.50
6.30
6.50
4.50
5.00
5.00
6.50
6.50
8.00
6
7
10
12
8
7
8
6
9
12
10
12
5
1.00
0.70
0.70
0.70
1.30
1.10
1.30
0.90
0.55
0.55
1.30
1.30
1.30
A
B
C
D
E
Dimensions
© KEMET Electronics Corporation • One East Broward Boulevard
Fort Lauderdale, FL 33301 USA • 954-766-2800 • www.kemet.com
Applicable
Cable
Shape
FPC, FFC
FPC, FFC
FPC, FFC
FPC, FFC
12 Core
12 Core
14 Core
FPC, FFC
FPC
FPC
20 Core
20 Core
22 Core
Figure 3
Figure 3
Figure 3
Figure 3
Figure 3
Figure 3
Figure 3
Figure 3
Figure 3
Figure 3
Figure 3
Figure 3
Figure 3
Applicable
Cable
Shape
Remarks
Thin type
Thin type
Thin type
Minimal gap type
Minimal gap type
Remarks
E5004_ESD-FPL • 11/14/2023
6
EMI Core – ESD-FPL Series Solid Cores for Flat Cables for High Frequency (Bare)
Impedance vs. Frequency
© KEMET Electronics Corporation • One East Broward Boulevard
Fort Lauderdale, FL 33301 USA • 954-766-2800 • www.kemet.com
E5004_ESD-FPL • 11/14/2023
7
EMI Core – ESD-FPL Series Solid Cores for Flat Cables for High Frequency (Bare)
Impedance vs. Frequency cont.
© KEMET Electronics Corporation • One East Broward Boulevard
Fort Lauderdale, FL 33301 USA • 954-766-2800 • www.kemet.com
E5004_ESD-FPL • 11/14/2023
8
EMI Core – ESD-FPL Series Solid Cores for Flat Cables for High Frequency (Bare)
Impedance vs. Frequency cont.
© KEMET Electronics Corporation • One East Broward Boulevard
Fort Lauderdale, FL 33301 USA • 954-766-2800 • www.kemet.com
E5004_ESD-FPL • 11/14/2023
9
EMI Core – ESD-FPL Series Solid Cores for Flat Cables for High Frequency (Bare)
Impedance vs. Frequency cont.
© KEMET Electronics Corporation • One East Broward Boulevard
Fort Lauderdale, FL 33301 USA • 954-766-2800 • www.kemet.com
E5004_ESD-FPL • 11/14/2023
10
EMI Core – ESD-FPL Series Solid Cores for Flat Cables for High Frequency (Bare)
Impedance vs. Frequency cont.
© KEMET Electronics Corporation • One East Broward Boulevard
Fort Lauderdale, FL 33301 USA • 954-766-2800 • www.kemet.com
E5004_ESD-FPL • 11/14/2023
11
EMI Core – ESD-FPL Series Solid Cores for Flat Cables for High Frequency (Bare)
Impedance vs. Frequency cont.
Impedance vs. Frequency - Not for New Design
© KEMET Electronics Corporation • One East Broward Boulevard
Fort Lauderdale, FL 33301 USA • 954-766-2800 • www.kemet.com
E5004_ESD-FPL • 11/14/2023
12
EMI Core – ESD-FPL Series Solid Cores for Flat Cables for High Frequency (Bare)
Impedance vs. Frequency - Not for New Design cont.
© KEMET Electronics Corporation • One East Broward Boulevard
Fort Lauderdale, FL 33301 USA • 954-766-2800 • www.kemet.com
E5004_ESD-FPL • 11/14/2023
13
EMI Core – ESD-FPL Series Solid Cores for Flat Cables for High Frequency (Bare)
Impedance vs. Frequency - Not for New Design cont.
© KEMET Electronics Corporation • One East Broward Boulevard
Fort Lauderdale, FL 33301 USA • 954-766-2800 • www.kemet.com
E5004_ESD-FPL • 11/14/2023
14
EMI Core – ESD-FPL Series Solid Cores for Flat Cables for High Frequency (Bare)
Packaging
Part Number
ESD-FPL-14.5-3
ESD-FPL-14.5-5
ESD-FPL-14.5-8
ESD-FPL-14.5-10
ESD-FPL-16-12
ESD-FPL-18-8
ESD-FPL-18-12
ESD-FPL-18.7-3
ESD-FPL-18.7-12
ESD-FPL-21-8
ESD-FPL-13
ESD-FPL-24.5-8
ESD-FPL-25-12
ESD-FPL-27-8
ESD-FPL-7
ESD-FPL-15
ESD-FPL-28-10
ESD-FPL-32-8
ESD-FPL-32-12
ESD-FPL-20-12
ESD-FPL-20-15
ESD-FPL-33.5-8
ESD-FPL-34-15
ESD-FPL-35-8
ESD-FPL-16
ESD-FPL-38-12
ESD-FPL-38.5-8
ESD-FPL-38.5-12
ESD-FPL-40-10
ESD-FPL-40-12
ESD-FPL-40-15
ESD-FPL-26
ESD-FPL-45.2-8
ESD-FPL-45-12
ESD-FPL-49.6-12
ESD-FPL-57.6-12
ESD-FPL-34
ESD-FPL-50
Packaging Type
Tray
© KEMET Electronics Corporation • One East Broward Boulevard
Fort Lauderdale, FL 33301 USA • 954-766-2800 • www.kemet.com
Pieces per Box
8,100
5,040
3,240
2,700
1,650
2,000
1,800
5,760
1,800
2,400
840
1,800
1,600
960
900
720
1,200
960
720
800
1,200
320
880
656
900
1,500
1,125
750
540
480
960
880
720
540
480
240
180
E5004_ESD-FPL • 11/14/2023
15
EMI Core – ESD-FPL Series Solid Cores for Flat Cables for High Frequency (Bare)
Handling Precautions
EMI Cores should be stored in normal working environments. While the EMI Cores themselves are quite robust in other
environments, avoid exposure to high temperatures, high humidity, corrosive atmospheres and long term storage for case,
snap-on and split types.
KEMET recommends that maximum storage temperature not exceed 40°C and maximum storage humidity not exceed 75%
relative humidity. Atmospheres should be free of chlorine, sulfur and alkali bearing compounds. Avoid also storage near
strong magnetic fields as this might magnetize the product.
Temperature fluctuations should be minimized to avoid condensation or cracks on the parts. Mechanical shocks can bring
to cracks as well.
© KEMET Electronics Corporation • One East Broward Boulevard
Fort Lauderdale, FL 33301 USA • 954-766-2800 • www.kemet.com
E5004_ESD-FPL • 11/14/2023
16
EMI Core – ESD-FPL Series Solid Cores for Flat Cables for High Frequency (Bare)
KEMET Electronics Corporation Sales Offices
For a complete list of our global sales offi ces, please visit www.kemet.com/sales.
Disclaimer
YAGEO Corporation and its affi liates do not recommend the use of commercial or automotive grade products for high reliability applications or manned space fl ight.
All product specifi cations, statements, information and data (collectively, the “Information”) in this datasheet are subject to change. The customer is responsible for
checking and verifying the extent to which the Information contained in this publication is applicable to an order at the time the order is placed. All Information given
herein is believed to be accurate and reliable, but it is presented without guarantee, warranty, or responsibility of any kind, expressed or implied.
Statements of suitability for certain applications are based on KEMET Electronics Corporation’s (“KEMET”) knowledge of typical operating conditions for such
applications, but are not intended to constitute – and KEMET specifi cally disclaims – any warranty concerning suitability for a specifi c customer application or use.
The Information is intended for use only by customers who have the requisite experience and capability to determine the correct products for their application. Any
technical advice inferred from this Information or otherwise provided by KEMET with reference to the use of KEMET’s products is given gratis, and KEMET assumes no
obligation or liability for the advice given or results obtained.
Although KEMET designs and manufactures its products to the most stringent quality and safety standards, given the current state of the art, isolated component
failures may still occur. Accordingly, customer applications which require a high degree of reliability or safety should employ suitable designs or other safeguards
(such as installation of protective circuitry or redundancies) in order to ensure that the failure of an electrical component does not result in a risk of personal injury or
property damage.
Although all product–related warnings, cautions and notes must be observed, the customer should not assume that all safety measures are indicated or that other
measures may not be required.
When providing KEMET products and technologies contained herein to other countries, the customer must abide by the procedures and provisions stipulated in all
applicable export laws and regulations, including without limitation the International Traffi c in Arms Regulations (ITAR), the US Export Administration Regulations
(EAR) and the Japan Foreign Exchange and Foreign Trade Act.
KEMET is a registered trademark of KEMET Electronics Corporation.
© KEMET Electronics Corporation • One East Broward Boulevard
Fort Lauderdale, FL 33301 USA • 954-766-2800 • www.kemet.com
E5004_ESD-FPL • 11/14/2023
17