1© KEMET Electronics Corporation • P.O. Box 5928 • Greenville, SC 29606 (864) 963-6300 • www.kemet.com E5001_ESD-R • 3/28/2017
One world. One KEMET
Overview
The KEMET ESD-R Series solid
toroidal cores are designed for use on
round cable. A wide range of MnZn
and NiZn options are available in Bare,
Coated, and Case types.
Benets
• MnZn(≤100MHz,AMbandrange)
andNiZn(≤300MHz,FMband
range) options available
• Solid construction
• Bare, Coated, and Case types
available
Applications
• Consumer
electronics
EMI Core
ESD-R Series Toroidal Cores
EMI Core
8
Ring Type
e
ESD-R Series
OD T
ID
Installation ExampleShape and Dimensions
Toroidal Cores (Bare Type)
[RoHS Compliant]
Toroidal Cores (Bare Type)
[RoHS Compliant]
ESD-R-10D 9.5 5.0 10.0 ●
ESD-R-10E 10.0 5.0 5.0 ●
ESD-R-10S10.5 5.5 20.0 ●
ESD-R-12C 11.8 7.3 15.0 ●
ESD-R-12E 11.8 7.3 8.0 ●
ESD-R-12F 12.0 8.5 15.0 ●
ESD-R-12S12.0 7.0 5.5 ●
ESD-R-14C 14.0 7.0 3.0 ●
ESD-R-14E 14.0 10.0 8.0 ●
ESD-R-14S14.3 6.3 28.5 ●
ESD-R-15C-1 15.0 10.5 12.0 ●
ESD-R-16 15.8 11.6 8.4 ●
ESD-R-16C 16.0 9.0 17.0 ●
ESD-R-17S17.5 9.5 28.5 ●
ESD-R-18SD18.0 10.0 6.0 ●
ESD-R-19S18.5 10.0 10.0 ●
ESD-R-19SD18.5 10.0 10.0 ●
ESD-R-22SD22.5 13.8 6.4 ●
ESD-R-25SD25.0 15.0 12.0 ●
ESD-R-25S25.0 15.0 12.0 ●
ESD-R-26S26.0 13.0 28.5 ●
ESD-R-28C 28.0 16.0 13.0 ●
ESD-R-31C 31.0 19.0 8.0 ●
ESD-R-38D 38.1 19.0 12.7 ●
Model Dimensions (mm) Frequency range
OD ID T up to 100MHz(mainly AM band range) up to 300MHz(mainly FM band range)
※Other sizes available. Please contact NEC TOKIN.
※Above frequency range is a reference only. Please test with actual device before use.
EMI Core
12
Ring Type
Ring Type
1 10 100 1000
1
10000
1000
100
10
1T
2T
3T
Impedance ()
Frequency (MHz)
ESD-R-12C-2
1
10000
1000
100
10
1T
2T
3T
1 10 100 1000
Impedance ()
Frequency (MHz)
ESD-R-14A
Impedance vs. Frequency
Toroidal Cores (Coated Type)
[RoHS Compliant]
Toroidal Cores (Coated Type)
[RoHS Compliant]
ESD-R Series
OD T
ID
Shape and Dimensions
ESD-R-12C-2 12.0 7.3 15.3 ●Blue
ESD-R-14A 15.0 6.2 3.5 ●Green －
ESD-R-14C-2 14.0 7.0 3.0 ●Blue ESD-R-14C
ESD-R-15C 15.2 10.5 12.5 ●Blue ESD-R-15C-1
ESD-R-17S-1 17.7 9.4 28.8 ●Blue ESD-R-17S
ESD-R-19E-1 19.0 10.7 5.3 ●Blue －
ESD-R-25D-8 25.0 15.0 8.0 ●Blue －
ESD-R-25L-A 25.3 15.1 12.1 ●Blue ESD-R-25SD
ESD-R-28C-1 28.2 15.8 13.2 ●Blue －
ESD-R-31C-1 32.0 18.5 9.0 ●Green ESD-R-31C
※Above frequency range is a reference only. Please test with actual device before use.
Model Dimensions (mm) Frequency range Color of coating Compatible toroidal core
OD ID T up to 100MHz up to 300MHz (bare type)
(mainly AM band range) (mainly FM band range)
EMI Core
14
Ring Type
Toroidal Cores with Case
[RoHS Compliant]
Toroidal Cores with Case
[RoHS Compliant]
OD T
ID
ESD-R Series
Shape and Dimensions
1 10 100 1000
1
10000
1000
100
10
1T
2T
3T
Impedance ()
ESD-R-12D
Frequency (MHz)
1
10000
1000
100
10
1T
2T
3T
1 10 100 1000
Impedance ()
Frequency (MHz)
ESD-R-19
Impedance vs. Frequency
ESD-R-12D 12.9 6.0 6.4 ●black ESD-R-12S
ESD-R-19 19.0 9.0 11.0 ●white ESD-R-19S
ESD-R-19D 19.0 9.0 11.0 ●black ESD-R-19SD
ESD-R-25 26.0 14.0 15.0 ●white ESD-R-25S
ESD-R-25D 26.0 14.0 15.0 ●black ESD-R-25SD
ESD-R-38 39.0 17.5 14.0 ●white ESD-R-38D
ESD-R-38C-1 39.0 17.5 14.0 ●with tape(black) white －
ESD-R-47 48.0 25.5 16.0 ●white －
ESD-R-47D-1 48.0 25.5 16.0 ●with tape(black) white －
ESD-R-57 61.0 32.4 24.0 ●white －
ESD-R-57D-1 61.0 32.4 24.0 ●with tape(black) white －
Model Dimensions (mm) Frequency range Remarks Color of case
Compatible toroidal core
OD ID T
up to 100MHz up to 300MHz
(bare type)
(mainly AM band range) (mainly FM band range)
※Above frequency range is a reference only. Please test with actual device before use. ※Flame resistant grade of the case : UL94V-2
Turns and Impedance Characteristics
When the desired performance of an EMI core cannot
be obtained with a single pass through the core, the
impedance characteristics can be changed with multiple
turns.
A turn is counted by the number of lead-wire windings
which pass through the inner hole of the core. Windings
ontheoutsideofthecoredonotcount.SeeFigure1for
examples of one, two, and three turns.
Adding turns will result in higher impedance while also
loweringtheeffectivefrequencyrange.SeeFigure2for
an example.
Core Material and Effective Frequency Range
There are two ferrite material options for
KEMET EMI Cores: Nickel-Zinc (Ni-Zn) and
Manganese-Zinc (Mn-Zn). Each core material
has a different resistance and effective
frequency range. The Mn-Zn core material
has lower resistance compared to the Ni-
Zn; therefore, be sure to provide adequate
insulation before use.
Forreference,theNi-Zncorematerialis
typically effective for the frequencies in the
MHzbandrangesuchastheFM-band,while
the Mn-Zn core material is typically effective for
thekHzbandrangesuchastheAM-band.See
Figure3.
It is recommended to verify actual
effectiveness in the target application with
measurements.
EMI Core
5
EMI Cores
Ring Type
　There are two materials of ferrite, Ni-Zn series and Mn-Zn ser ies. Ni-Zn series is e
ive for kHz band range.
　Note that above e band range i s a reference only. Examination of s
with actual instrument is necessary.
　As Mn-Zn series has lower resistance compared to Ni-Zn series, make sure to provide
adequate insulation before use.
Characteristics and how to count turns
　Number of turns are counted by how many times the lead wire pa sses through the inner
hole of the core. Do not count the number of lead wire winding outside the core, as it results
　When desired performance can not be obtained just b y 1 turn, impedance characteristics
value can be raised b y increasing th e turn. In this case, the e frequency band should
be checked that it is in the desired range as adding turns resu lts in lowering down the
Tips on EMI Core Usages
（Represe ntative Example：ESD-R-16C）
Fig.1　How to count turns Fig.2　Relationship between impedance an d turn counts
*Number of lead wire wound outside the core + 1
= Number of read wire passes through the inner
hole of the core
= Turn count
Mn-Zn series vs Ni-Zn series ｜Z｜-f Characteristics (representative example)
(measurement condition: measured with same-dimension ring core)
Fig.3　te
AM band range FM band range
MnZn series core
NiZn series core
Impedance (Ω)
1000
100
10
1
0.01 0.1 1 10 100 1000
Impedance Increase
Resonance point changes to lower band
3T
2T
1T
Frequency (MHz)
Impedance (Ω)
Frequency (MHz)
10000
1 10 100 1000
1000
100
10
1
3T2T1T
Figure 1 – How to count turns
EMI Core
5
EMI Cores
Ring Type
　There are two materials of ferrite, Ni-Zn series and Mn-Zn ser ies. Ni-Zn series is e
ive for kHz band range.
　Note that above e band range i s a reference only. Examination of s
with actual instrument is necessary.
　As Mn-Zn series has lower resistance compared to Ni-Zn series, make sure to provide
adequate insulation before use.
Characteristics and how to count turns
　Number of turns are counted by how many times the lead wire pa sses through the inner
hole of the core. Do not count the number of lead wire winding outside the core, as it results
　When desired performance can not be obtained just b y 1 turn, impedance characteristics
value can be raised b y increasing th e turn. In this case, the e frequency band should
be checked that it is in the desired range as adding turns resu lts in lowering down the
Tips on EMI Core Usages
（Represe ntative Example：ESD-R-16C）
Fig.1　How to count turns Fig.2　Relationship between impedance an d turn counts
*Number of lead wire wound outside the core + 1
= Number of read wire passes through the inner
hole of the core
= Turn count
Mn-Zn series vs Ni-Zn series ｜Z｜-f Characteristics (representative example)
(measurement condition: measured with same-dimension ring core)
Fig.3　te
AM band range FM band range
MnZn series core
NiZn series core
Impedance (Ω)
1000
100
10
1
0.01 0.1 1 10 100 1000
Impedance Increase
Resonance point changes to lower band
3T
2T
1T
Frequency (MHz)
Impedance (Ω)
Frequency (MHz)
10000
1 10 100 1000
1000
100
10
1
3T2T1T
Figure 2 – Relationship between impedance and turn count.
(Representative example: ESD-R-16C)
EMI Core
5
EMI Cores
Ring Type
　There are two materials of ferrite, Ni-Zn series and Mn-Zn ser ies. Ni-Zn series is e
ive for kHz band range.
　Note that above e band range i s a reference only. Examination of s
with actual instrument is necessary.
　As Mn-Zn series has lower resistance compared to Ni-Zn series, make sure to provide
adequate insulation before use.
Characteristics and how to count turns
　Number of turns are counted by how many times the lead wire pa sses through the inner
hole of the core. Do not count the number of lead wire winding outside the core, as it results
　When desired performance can not be obtained just b y 1 turn, impedance characteristics
value can be raised b y increasing th e turn. In this case, the e frequency band should
be checked that it is in the desired range as adding turns resu lts in lowering down the
Tips on EMI Core Usages
（Represe ntative Example：ESD-R-16C）
Fig.1　How to count turns Fig.2　Relationship between impedance an d turn counts
*Number of lead wire wound outside the core + 1
= Number of read wire passes through the inner
hole of the core
= Turn count
Mn-Zn series vs Ni-Zn series ｜Z｜-f Characteristics (representative example)
(measurement condition: measured with same-dimension ring core)
Fig.3　te
AM band range FM band range
MnZn series core
NiZn series core
Impedance (Ω)
1000
100
10
1
0.01 0.1 1 10 100 1000
Impedance Increase
Resonance point changes to lower band
3T
2T
1T
Frequency (MHz)
Impedance (Ω)
Frequency (MHz)
10000
1 10 100 1000
1000
100
10
1
3T2T1T
Figure 3 – Effective band range of Mn-Zn and Ni-Zn ferrite core material.
(Representative example, measured with same-dimension ring core)
2© KEMET Electronics Corporation • P.O. Box 5928 • Greenville, SC 29606 (864) 963-6300 • www.kemet.com E5001_ESD-R • 3/28/2017
EMI Core – ESD-R Series Toroidal Cores
Dimensions – Millimeters
Bare and Coated Types
OD T
ID
See Table 1 for dimensions
Installation Examples
EMI Core
8
Ring Type
e
ESD-R Series
OD T
ID
Installation ExampleShape and Dimensions
Toroidal Cores (Bare Type)
[RoHS Compliant]
Toroidal Cores (Bare Type)
[RoHS Compliant]
ESD-R-10D 9.5 5.0 10.0 ●
ESD-R-10E 10.0 5.0 5.0 ●
ESD-R-10S10.5 5.5 20.0 ●
ESD-R-12C 11.8 7.3 15.0 ●
ESD-R-12E 11.8 7.3 8.0 ●
ESD-R-12F 12.0 8.5 15.0 ●
ESD-R-12S12.0 7.0 5.5 ●
ESD-R-14C 14.0 7.0 3.0 ●
ESD-R-14E 14.0 10.0 8.0 ●
ESD-R-14S14.3 6.3 28.5 ●
ESD-R-15C-1 15.0 10.5 12.0 ●
ESD-R-16 15.8 11.6 8.4 ●
ESD-R-16C 16.0 9.0 17.0 ●
ESD-R-17S17.5 9.5 28.5 ●
ESD-R-18SD18.0 10.0 6.0 ●
ESD-R-19S18.5 10.0 10.0 ●
ESD-R-19SD18.5 10.0 10.0 ●
ESD-R-22SD22.5 13.8 6.4 ●
ESD-R-25SD25.0 15.0 12.0 ●
ESD-R-25S25.0 15.0 12.0 ●
ESD-R-26S26.0 13.0 28.5 ●
ESD-R-28C 28.0 16.0 13.0 ●
ESD-R-31C 31.0 19.0 8.0 ●
ESD-R-38D 38.1 19.0 12.7 ●
Model Dimensions (mm) Frequency range
OD ID T up to 100MHz(mainly AM band range) up to 300MHz(mainly FM band range)
※Other sizes available. Please contact NEC TOKIN.
※Above frequency range is a reference only. Please test with actual device before use.
Environmental Compliance
AllKEMETEMIcoresareRoHSCompliant.
RoHS Compliant
Case Type
EMI Core
14
Ring Type
Toroidal Cores with Case
[RoHS Compliant]
Toroidal Cores with Case
[RoHS Compliant]
OD T
ID
ESD-R Series
Shape and Dimensions
1 10 100 1000
1
10000
1000
100
10
1T
2T
3T
Impedance ()
ESD-R-12D
Frequency (MHz)
1
10000
1000
100
10
1T
2T
3T
1 10 100 1000
Impedance ()
Frequency (MHz)
ESD-R-19
Impedance vs. Frequency
ESD-R-12D 12.9 6.0 6.4 ●black ESD-R-12S
ESD-R-19 19.0 9.0 11.0 ●white ESD-R-19S
ESD-R-19D 19.0 9.0 11.0 ●black ESD-R-19SD
ESD-R-25 26.0 14.0 15.0 ●white ESD-R-25S
ESD-R-25D 26.0 14.0 15.0 ●black ESD-R-25SD
ESD-R-38 39.0 17.5 14.0 ●white ESD-R-38D
ESD-R-38C-1 39.0 17.5 14.0 ●with tape(black) white －
ESD-R-47 48.0 25.5 16.0 ●white －
ESD-R-47D-1 48.0 25.5 16.0 ●with tape(black) white －
ESD-R-57 61.0 32.4 24.0 ●white －
ESD-R-57D-1 61.0 32.4 24.0 ●with tape(black) white －
Model Dimensions (mm) Frequency range Remarks Color of case
Compatible toroidal core
OD ID T
up to 100MHz up to 300MHz
(bare type)
(mainly AM band range) (mainly FM band range)
※Above frequency range is a reference only. Please test with actual device before use. ※Flame resistant grade of the case : UL94V-2
3© KEMET Electronics Corporation • P.O. Box 5928 • Greenville, SC 29606 (864) 963-6300 • www.kemet.com E5001_ESD-R • 3/28/2017
EMI Core – ESD-R Series Toroidal Cores
Table 1 – Ratings & Part Number Reference
1 Frequency range is for reference only. Please test with actual device before use.
2 Case ame resistant rating: UL94V-2
*Other sizes available. Please contact KEMET.
Part Number
Dimensions (mm) Frequency Range1
Type Color
Compatible
Toroidal Core
(Bare Type)
OD ID T≤ 100 MHz
(AM band range)
≤ 300 MHz
(FM band range)
ESD-R-10D
9.5
5.0
10.0
X
Bare
—
—
ESD-R-10E
10.0
5.0
5.0
X
Bare
—
—
ESD-R-10S
10.5
5.5
20.0
X
Bare
—
—
ESD-R-12C
11.8
7.3
15.0
X
Bare
—
—
ESD-R-12E
11.8
7.3
8.0
X
Bare
—
—
ESD-R-12F
12.0
8.5
15.0
X
Bare
—
—
ESD-R-12S
12.0
7.0
5.5
X
Bare
—
—
ESD-R-14C
14.0
7.0
3.0
X
Bare
—
—
ESD-R-14E
14.0
10.0
8.0
X
Bare
—
—
ESD-R-14S
14.3
6.3
28.5
X
Bare
—
—
ESD-R-15C-1
15.0
10.5
12.0
X
Bare
—
—
ESD-R-16
15.8
11.6
8.4
X
Bare
—
—
ESD-R-16C
16.0
9.0
17.0
X
Bare
—
—
ESD-R-17S
17.5
9.5
28.5
X
Bare
—
—
ESD-R-18SD
18.0
10.0
6.0
X
Bare
—
—
ESD-R-19S
18.5
10.0
10.0
X
Bare
—
—
ESD-R-19SD
18.5
10.0
10.0
X
Bare
—
—
ESD-R-22SD
22.5
13.8
6.4
X
Bare
—
—
ESD-R-25SD
25.0
15.0
12.0
X
Bare
—
—
ESD-R-25S
25.0
15.0
12.0
X
Bare
—
—
ESD-R-26S
26.0
13.0
28.5
X
Bare
—
—
ESD-R-28C
28.0
16.0
13.0
X
Bare
—
—
ESD-R-31C
31.0
19.0
8.0
X
Bare
—
—
ESD-R-38D
38.1
19.0
12.7
X
Bare
—
—
ESD-R-12C-2
12.0
7.3
15.3
X
Coated
Blue
—
ESD-R-14A
15.0
6.2
3.5
X
Coated
Green
—
ESD-R-14C-2
14.0
7.0
3.0
X
Coated
Blue
ESD-R-14C
ESD-R-15C
15.2
10.5
12.5
X
Coated
Blue
ESD-R-15C-1
ESD-R-17S-1
17.7
9.4
28.8
X
Coated
Blue
ESD-R-17S
ESD-R-19E-1
19.0
10.7
5.3
X
Coated
Blue
—
ESD-R-25D-8
25.0
15.0
8.0
X
Coated
Blue
—
ESD- R-25L-A
25.3
15.1
12.1
X
Coated
Blue
ESD-R-25SD
ESD-R-28C-1
28.2
15.8
13.2
X
Coated
Blue
—
ESD-R-31C-1
32.0
18.5
9.0
X
Coated
Green
ESD-R-31C
ESD-R-31-P
32.0
19.0
15.8
X
Coated
Green
—
ESD-R-12D
12.9
6.0
6.4
X
Case2
Black
ESD-R-12S
ESD-R-19
19.0
9.0
11.0
X
Case2
White
ESD-R-19S
ESD-R-19D
19.0
9.0
11.0
X
Case2
Black
ESD-R-19SD
ESD-R-25
26.0
14.0
15.0
X
Case2
White
ESD-R-25S
ESD-R-25D
26.0
14.0
15.0
X
Case2
Black
ESD-R-25SD
ESD-R-38
39.0
17.5
14.0
X
Case2
White
ESD-R-38D
ESD-R-38C-1
39.0
17.5
14.0
X
Case2
White w/ tape (black)
—
ESD-R-47
48.0
25.5
16.0
X
Case2
White
—
ESD-R-47D-1
48.0
25.5
16.0
X
Case2
White w/ tape (black)
—
ESD-R-57
61.0
32.4
24.0
X
Case2
White
—
ESD-R-57D-1
61.0
32.4
24.0
X
Case2
White w/ tape (black)
—
4© KEMET Electronics Corporation • P.O. Box 5928 • Greenville, SC 29606 (864) 963-6300 • www.kemet.com E5001_ESD-R • 3/28/2017
EMI Core – ESD-R Series Toroidal Cores
Impedance vs. Frequency – Bare Type
EMI Core
9
Ring Type
Ring Type
1 10 100 1000
1
10000
1000
100
10
1T
2T
3T
Impedance ()
Frequency (MHz)
ESD-R-10D
1
10000
1000
100
10
1T
2T
3T
1 10 100 1000
Impedance ()
Frequency (MHz)
ESD-R-12E
1
10000
1000
100
10
1T
2T
3T
1 10 100 1000
Impedance ()
Frequency (MHz)
ESD-R-12F
1
10000
1000
100
10
1T
2T
3T
1 10 100 1000
Frequency (MHz)
ESD-R-12S
Impedance ()
1 10 100 1000
1
10000
1000
100
10
Impedance ()
Frequency (MHz)
ESD-R-10E
1T
2T
3T
1 10 100 1000
1
10000
1000
100
10
1T
2T
3T
Impedance ()
Frequency (MHz)
ESD-R-10S
1
10000
1000
100
10
1T
2T
3T
1 10 100 1000
Impedance ()
Frequency (MHz)
ESD-R-12C
1 10 100 1000
1
10000
1000
100
10
1T
2T
3T
Impedance ()
Frequency (MHz)
ESD-R-14C
1 10 100 1000
1
10000
1000
100
10
Impedance ()
Frequency (MHz)
ESD-R-14E
1T
2T
3T
1
10000
1000
100
10
1T
2T
3T
1 10 100 1000
Impedance ()
Frequency (MHz)
ESD-R-14S
Impedance vs. Frequency
EMI Core
9
Ring Type
Ring Type
1 10 100 1000
1
10000
1000
100
10
1T
2T
3T
Impedance ()
Frequency (MHz)
ESD-R-10D
1
10000
1000
100
10
1T
2T
3T
1 10 100 1000
Impedance ()
Frequency (MHz)
ESD-R-12E
1
10000
1000
100
10
1T
2T
3T
1 10 100 1000
Impedance ()
Frequency (MHz)
ESD-R-12F
1
10000
1000
100
10
1T
2T
3T
1 10 100 1000
Frequency (MHz)
ESD-R-12S
Impedance ()
1 10 100 1000
1
10000
1000
100
10
Impedance ()
Frequency (MHz)
ESD-R-10E
1T
2T
3T
1 10 100 1000
1
10000
1000
100
10
1T
2T
3T
Impedance ()
Frequency (MHz)
ESD-R-10S
1
10000
1000
100
10
1T
2T
3T
1 10 100 1000
Impedance ()
Frequency (MHz)
ESD-R-12C
1 10 100 1000
1
10000
1000
100
10
1T
2T
3T
Impedance ()
Frequency (MHz)
ESD-R-14C
1 10 100 1000
1
10000
1000
100
10
Impedance ()
Frequency (MHz)
ESD-R-14E
1T
2T
3T
1
10000
1000
100
10
1T
2T
3T
1 10 100 1000
Impedance ()
Frequency (MHz)
ESD-R-14S
Impedance vs. Frequency
EMI Core
9
Ring Type
Ring Type
1 10 100 1000
1
10000
1000
100
10
1T
2T
3T
Impedance ()
Frequency (MHz)
ESD-R-10D
1
10000
1000
100
10
1T
2T
3T
1 10 100 1000
Impedance ()
Frequency (MHz)
ESD-R-12E
1
10000
1000
100
10
1T
2T
3T
1 10 100 1000
Impedance ()
Frequency (MHz)
ESD-R-12F
1
10000
1000
100
10
1T
2T
3T
1 10 100 1000
Frequency (MHz)
ESD-R-12S
Impedance ()
1 10 100 1000
1
10000
1000
100
10
Impedance ()
Frequency (MHz)
ESD-R-10E
1T
2T
3T
1 10 100 1000
1
10000
1000
100
10
1T
2T
3T
Impedance ()
Frequency (MHz)
ESD-R-10S
1
10000
1000
100
10
1T
2T
3T
1 10 100 1000
Impedance ()
Frequency (MHz)
ESD-R-12C
1 10 100 1000
1
10000
1000
100
10
1T
2T
3T
Impedance ()
Frequency (MHz)
ESD-R-14C
1 10 100 1000
1
10000
1000
100
10
Impedance ()
Frequency (MHz)
ESD-R-14E
1T
2T
3T
1
10000
1000
100
10
1T
2T
3T
1 10 100 1000
Impedance ()
Frequency (MHz)
ESD-R-14S
Impedance vs. Frequency
EMI Core
9
Ring Type
Ring Type
1 10 100 1000
1
10000
1000
100
10
1T
2T
3T
Impedance ()
Frequency (MHz)
ESD-R-10D
1
10000
1000
100
10
1T
2T
3T
1 10 100 1000
Impedance ()
Frequency (MHz)
ESD-R-12E
1
10000
1000
100
10
1T
2T
3T
1 10 100 1000
Impedance ()
Frequency (MHz)
ESD-R-12F
1
10000
1000
100
10
1T
2T
3T
1 10 100 1000
Frequency (MHz)
ESD-R-12S
Impedance ()
1 10 100 1000
1
10000
1000
100
10
Impedance ()
Frequency (MHz)
ESD-R-10E
1T
2T
3T
1 10 100 1000
1
10000
1000
100
10
1T
2T
3T
Impedance ()
Frequency (MHz)
ESD-R-10S
1
10000
1000
100
10
1T
2T
3T
1 10 100 1000
Impedance ()
Frequency (MHz)
ESD-R-12C
1 10 100 1000
1
10000
1000
100
10
1T
2T
3T
Impedance ()
Frequency (MHz)
ESD-R-14C
1 10 100 1000
1
10000
1000
100
10
Impedance ()
Frequency (MHz)
ESD-R-14E
1T
2T
3T
1
10000
1000
100
10
1T
2T
3T
1 10 100 1000
Impedance ()
Frequency (MHz)
ESD-R-14S
Impedance vs. Frequency
5© KEMET Electronics Corporation • P.O. Box 5928 • Greenville, SC 29606 (864) 963-6300 • www.kemet.com E5001_ESD-R • 3/28/2017
EMI Core – ESD-R Series Toroidal Cores
Impedance vs. Frequency – Bare Type Cont’d
EMI Core
10
Ring Type
ing Type
1
10000
1000
100
10
1T
2T
3T
Impedance ()
1 10 100 1000
Frequency (MHz)
ESD-R-15C-1
1
10000
1000
100
10
1T
2T
3T
1 10 100 1000
Impedance ()
Frequency (MHz)
ESD-R-16
1
10000
1000
100
10
1T
2T
3T
1 10 100 1000
Impedance ()
Frequency (MHz)
ESD-R-16C
1
10000
1000
100
10
1T
2T
3T
1 10 100 1000
Impedance ()
Frequency (MHz)
ESD-R-17S
1
10000
1000
100
10
1T
2T
3T
1 10 100 1000
Impedance ()
Frequency (MHz)
ESD-R-19S
1
10000
1000
100
10
1T
2T
3T
1 10 100 1000
Impedance ()
Frequency (MHz)
ESD-R-19SD
1
10000
1000
100
10
1T
2T
3T
1 10 100 1000
Impedance ()
Frequency (MHz)
ESD-R-18SD
1
10000
1000
100
10
1T
2T
3T
1 10 100 1000
Impedance ()
Frequency (MHz)
ESD-R-25SD
1
10000
1000
100
10
1 10 100 1000
Impedance ()
Frequency (MHz)
ESD-R-22SD
1T
2T
3T
1
10000
1000
100
10
1T
2T
3T
1 10 100 1000
Impedance ()
Frequency (MHz)
ESD-R-25S
Impedance vs. Frequency
EMI Core
9
Ring Type
Ring Type
1 10 100 1000
1
10000
1000
100
10
1T
2T
3T
Impedance ()
Frequency (MHz)
ESD-R-10D
1
10000
1000
100
10
1T
2T
3T
1 10 100 1000
Impedance ()
Frequency (MHz)
ESD-R-12E
1
10000
1000
100
10
1T
2T
3T
1 10 100 1000
Impedance ()
Frequency (MHz)
ESD-R-12F
1
10000
1000
100
10
1T
2T
3T
1 10 100 1000
Frequency (MHz)
ESD-R-12S
Impedance ()
1 10 100 1000
1
10000
1000
100
10
Impedance ()
Frequency (MHz)
ESD-R-10E
1T
2T
3T
1 10 100 1000
1
10000
1000
100
10
1T
2T
3T
Impedance ()
Frequency (MHz)
ESD-R-10S
1
10000
1000
100
10
1T
2T
3T
1 10 100 1000
Impedance ()
Frequency (MHz)
ESD-R-12C
1 10 100 1000
1
10000
1000
100
10
1T
2T
3T
Impedance ()
Frequency (MHz)
ESD-R-14C
1 10 100 1000
1
10000
1000
100
10
Impedance ()
Frequency (MHz)
ESD-R-14E
1T
2T
3T
1
10000
1000
100
10
1T
2T
3T
1 10 100 1000
Impedance ()
Frequency (MHz)
ESD-R-14S
Impedance vs. Frequency
EMI Core
10
Ring Type
ing Type
1
10000
1000
100
10
1T
2T
3T
Impedance ()
1 10 100 1000
Frequency (MHz)
ESD-R-15C-1
1
10000
1000
100
10
1T
2T
3T
1 10 100 1000
Impedance ()
Frequency (MHz)
ESD-R-16
1
10000
1000
100
10
1T
2T
3T
1 10 100 1000
Impedance ()
Frequency (MHz)
ESD-R-16C
1
10000
1000
100
10
1T
2T
3T
1 10 100 1000
Impedance ()
Frequency (MHz)
ESD-R-17S
1
10000
1000
100
10
1T
2T
3T
1 10 100 1000
Impedance ()
Frequency (MHz)
ESD-R-19S
1
10000
1000
100
10
1T
2T
3T
1 10 100 1000
Impedance ()
Frequency (MHz)
ESD-R-19SD
1
10000
1000
100
10
1T
2T
3T
1 10 100 1000
Impedance ()
Frequency (MHz)
ESD-R-18SD
1
10000
1000
100
10
1T
2T
3T
1 10 100 1000
Impedance ()
Frequency (MHz)
ESD-R-25SD
1
10000
1000
100
10
1 10 100 1000
Impedance ()
Frequency (MHz)
ESD-R-22SD
1T
2T
3T
1
10000
1000
100
10
1T
2T
3T
1 10 100 1000
Impedance ()
Frequency (MHz)
ESD-R-25S
Impedance vs. Frequency
EMI Core
10
Ring Type
ing Type
1
10000
1000
100
10
1T
2T
3T
Impedance ()
1 10 100 1000
Frequency (MHz)
ESD-R-15C-1
1
10000
1000
100
10
1T
2T
3T
1 10 100 1000
Impedance ()
Frequency (MHz)
ESD-R-16
1
10000
1000
100
10
1T
2T
3T
1 10 100 1000
Impedance ()
Frequency (MHz)
ESD-R-16C
1
10000
1000
100
10
1T
2T
3T
1 10 100 1000
Impedance ()
Frequency (MHz)
ESD-R-17S
1
10000
1000
100
10
1T
2T
3T
1 10 100 1000
Impedance ()
Frequency (MHz)
ESD-R-19S
1
10000
1000
100
10
1T
2T
3T
1 10 100 1000
Impedance ()
Frequency (MHz)
ESD-R-19SD
1
10000
1000
100
10
1T
2T
3T
1 10 100 1000
Impedance ()
Frequency (MHz)
ESD-R-18SD
1
10000
1000
100
10
1T
2T
3T
1 10 100 1000
Impedance ()
Frequency (MHz)
ESD-R-25SD
1
10000
1000
100
10
1 10 100 1000
Impedance ()
Frequency (MHz)
ESD-R-22SD
1T
2T
3T
1
10000
1000
100
10
1T
2T
3T
1 10 100 1000
Impedance ()
Frequency (MHz)
ESD-R-25S
Impedance vs. Frequency
6© KEMET Electronics Corporation • P.O. Box 5928 • Greenville, SC 29606 (864) 963-6300 • www.kemet.com E5001_ESD-R • 3/28/2017
EMI Core – ESD-R Series Toroidal Cores
Impedance vs. Frequency – Bare Type Cont’d
EMI Core
11
Ring Type
Ring Type
1
10000
1000
100
10
1T
2T
3T
1 10 100 1000
Impedance ()
Frequency (MHz)
ESD-R-26S
1
10000
1000
100
10
1T
2T
3T
1 10 100 1000
Impedance ()
Frequency (MHz)
ESD-R-28C
1
10000
1000
100
10
1T
2T
3T
1 10 100 1000
Impedance ()
Frequency (MHz)
ESD-R-31C
1
10000
1000
100
10
1T
2T
3T
1 10 100 1000
Impedance ()
Frequency (MHz)
ESD-R-38D
Impedance vs. Frequency
EMI Core
10
Ring Type
ing Type
1
10000
1000
100
10
1T
2T
3T
Impedance ()
1 10 100 1000
Frequency (MHz)
ESD-R-15C-1
1
10000
1000
100
10
1T
2T
3T
1 10 100 1000
Impedance ()
Frequency (MHz)
ESD-R-16
1
10000
1000
100
10
1T
2T
3T
1 10 100 1000
Impedance ()
Frequency (MHz)
ESD-R-16C
1
10000
1000
100
10
1T
2T
3T
1 10 100 1000
Impedance ()
Frequency (MHz)
ESD-R-17S
1
10000
1000
100
10
1T
2T
3T
1 10 100 1000
Impedance ()
Frequency (MHz)
ESD-R-19S
1
10000
1000
100
10
1T
2T
3T
1 10 100 1000
Impedance ()
Frequency (MHz)
ESD-R-19SD
1
10000
1000
100
10
1T
2T
3T
1 10 100 1000
Impedance ()
Frequency (MHz)
ESD-R-18SD
1
10000
1000
100
10
1T
2T
3T
1 10 100 1000
Impedance ()
Frequency (MHz)
ESD-R-25SD
1
10000
1000
100
10
1 10 100 1000
Impedance ()
Frequency (MHz)
ESD-R-22SD
1T
2T
3T
1
10000
1000
100
10
1T
2T
3T
1 10 100 1000
Impedance ()
Frequency (MHz)
ESD-R-25S
Impedance vs. Frequency
EMI Core
10
Ring Type
ing Type
1
10000
1000
100
10
1T
2T
3T
Impedance ()
1 10 100 1000
Frequency (MHz)
ESD-R-15C-1
1
10000
1000
100
10
1T
2T
3T
1 10 100 1000
Impedance ()
Frequency (MHz)
ESD-R-16
1
10000
1000
100
10
1T
2T
3T
1 10 100 1000
Impedance ()
Frequency (MHz)
ESD-R-16C
1
10000
1000
100
10
1T
2T
3T
1 10 100 1000
Impedance ()
Frequency (MHz)
ESD-R-17S
1
10000
1000
100
10
1T
2T
3T
1 10 100 1000
Impedance ()
Frequency (MHz)
ESD-R-19S
1
10000
1000
100
10
1T
2T
3T
1 10 100 1000
Impedance ()
Frequency (MHz)
ESD-R-19SD
1
10000
1000
100
10
1T
2T
3T
1 10 100 1000
Impedance ()
Frequency (MHz)
ESD-R-18SD
1
10000
1000
100
10
1T
2T
3T
1 10 100 1000
Impedance ()
Frequency (MHz)
ESD-R-25SD
1
10000
1000
100
10
1 10 100 1000
Impedance ()
Frequency (MHz)
ESD-R-22SD
1T
2T
3T
1
10000
1000
100
10
1T
2T
3T
1 10 100 1000
Impedance ()
Frequency (MHz)
ESD-R-25S
Impedance vs. Frequency
EMI Core
11
Ring Type
Ring Type
1
10000
1000
100
10
1T
2T
3T
1 10 100 1000
Impedance ()
Frequency (MHz)
ESD-R-26S
1
10000
1000
100
10
1T
2T
3T
1 10 100 1000
Impedance ()
Frequency (MHz)
ESD-R-28C
1
10000
1000
100
10
1T
2T
3T
1 10 100 1000
Impedance ()
Frequency (MHz)
ESD-R-31C
1
10000
1000
100
10
1T
2T
3T
1 10 100 1000
Impedance ()
Frequency (MHz)
ESD-R-38D
Impedance vs. Frequency
7© KEMET Electronics Corporation • P.O. Box 5928 • Greenville, SC 29606 (864) 963-6300 • www.kemet.com E5001_ESD-R • 3/28/2017
EMI Core – ESD-R Series Toroidal Cores
Impedance vs. Frequency – Coated Type
EMI Core
13
Ring Type
Ring Type
1
10000
1000
100
10
1T
2T
3T
1 10 100 1000
Impedance ()
Frequency (MHz)
ESD-R-14C-2
1
10000
1000
100
10
1T
2T
3T
1 10 100 1000
Impedance ()
Frequency (MHz)
ESD-R-15C
1
10000
1000
100
10
1T
2T
3T
1 10 100 1000
Impedance ()
Frequency (MHz)
ESD-R-17S-1
1 10 100 1000
1
10000
1000
100
10
1T
2T
3T
Impedance ()
Frequency (MHz)
ESD-R-19E-1
1
10000
1000
100
10
1T
2T
3T
1 10 100 1000
Impedance ()
Frequency (MHz)
ESD-R-25D-8
1
10000
1000
100
10
1T
2T
3T
1 10 100 1000
Impedance ()
Frequency (MHz)
ESD-R-25L-A
1
10000
1000
100
10
1T
2T
3T
1 10 100 1000
Impedance ()
Frequency (MHz)
ESD-R-31C-1
1
10000
1000
100
10
1T
2T
3T
1 10 100 1000
Impedance ()
Frequency (MHz)
ESD-R-28C-1
Impedance vs. Frequency
EMI Core
12
Ring Type
Ring Type
1 10 100 1000
1
10000
1000
100
10
1T
2T
3T
Impedance ()
Frequency (MHz)
ESD-R-12C-2
1
10000
1000
100
10
1T
2T
3T
1 10 100 1000
Impedance ()
Frequency (MHz)
ESD-R-14A
Impedance vs. Frequency
Toroidal Cores (Coated Type)
[RoHS Compliant]
Toroidal Cores (Coated Type)
[RoHS Compliant]
ESD-R Series
OD T
ID
Shape and Dimensions
ESD-R-12C-2 12.0 7.3 15.3 ●Blue
ESD-R-14A 15.0 6.2 3.5 ●Green －
ESD-R-14C-2 14.0 7.0 3.0 ●Blue ESD-R-14C
ESD-R-15C 15.2 10.5 12.5 ●Blue ESD-R-15C-1
ESD-R-17S-1 17.7 9.4 28.8 ●Blue ESD-R-17S
ESD-R-19E-1 19.0 10.7 5.3 ●Blue －
ESD-R-25D-8 25.0 15.0 8.0 ●Blue －
ESD-R-25L-A 25.3 15.1 12.1 ●Blue ESD-R-25SD
ESD-R-28C-1 28.2 15.8 13.2 ●Blue －
ESD-R-31C-1 32.0 18.5 9.0 ●Green ESD-R-31C
※Above frequency range is a reference only. Please test with actual device before use.
Model Dimensions (mm) Frequency range Color of coating Compatible toroidal core
OD ID T up to 100MHz up to 300MHz (bare type)
(mainly AM band range) (mainly FM band range)
EMI Core
13
Ring Type
Ring Type
1
10000
1000
100
10
1T
2T
3T
1 10 100 1000
Impedance ()
Frequency (MHz)
ESD-R-14C-2
1
10000
1000
100
10
1T
2T
3T
1 10 100 1000
Impedance ()
Frequency (MHz)
ESD-R-15C
1
10000
1000
100
10
1T
2T
3T
1 10 100 1000
Impedance ()
Frequency (MHz)
ESD-R-17S-1
1 10 100 1000
1
10000
1000
100
10
1T
2T
3T
Impedance ()
Frequency (MHz)
ESD-R-19E-1
1
10000
1000
100
10
1T
2T
3T
1 10 100 1000
Impedance ()
Frequency (MHz)
ESD-R-25D-8
1
10000
1000
100
10
1T
2T
3T
1 10 100 1000
Impedance ()
Frequency (MHz)
ESD-R-25L-A
1
10000
1000
100
10
1T
2T
3T
1 10 100 1000
Impedance ()
Frequency (MHz)
ESD-R-31C-1
1
10000
1000
100
10
1T
2T
3T
1 10 100 1000
Impedance ()
Frequency (MHz)
ESD-R-28C-1
Impedance vs. Frequency
EMI Core
13
Ring Type
Ring Type
1
10000
1000
100
10
1T
2T
3T
1 10 100 1000
Impedance ()
Frequency (MHz)
ESD-R-14C-2
1
10000
1000
100
10
1T
2T
3T
1 10 100 1000
Impedance ()
Frequency (MHz)
ESD-R-15C
1
10000
1000
100
10
1T
2T
3T
1 10 100 1000
Impedance ()
Frequency (MHz)
ESD-R-17S-1
1 10 100 1000
1
10000
1000
100
10
1T
2T
3T
Impedance ()
Frequency (MHz)
ESD-R-19E-1
1
10000
1000
100
10
1T
2T
3T
1 10 100 1000
Impedance ()
Frequency (MHz)
ESD-R-25D-8
1
10000
1000
100
10
1T
2T
3T
1 10 100 1000
Impedance ()
Frequency (MHz)
ESD-R-25L-A
1
10000
1000
100
10
1T
2T
3T
1 10 100 1000
Impedance ()
Frequency (MHz)
ESD-R-31C-1
1
10000
1000
100
10
1T
2T
3T
1 10 100 1000
Impedance ()
Frequency (MHz)
ESD-R-28C-1
Impedance vs. Frequency
8© KEMET Electronics Corporation • P.O. Box 5928 • Greenville, SC 29606 (864) 963-6300 • www.kemet.com E5001_ESD-R • 3/28/2017
EMI Core – ESD-R Series Toroidal Cores
Impedance vs. Frequency – Coated Type Cont’d
EMI Core
15
Ring Type
1
10000
1000
100
10
1T
2T
3T
Frequency (MHz)
1 10 100 1000
Impedance ()
ESD-R-19D
1
10000
1000
100
10
1T
2T
3T
1 10 100 1000
Impedance ()
Frequency (MHz)
ESD-R-25
1
10000
1000
100
10
1T
2T
3T
1 10 100 1000
Impedance ()
Frequency (MHz)
ESD-R-25D
1
10000
1000
100
10
1T
2T
3T
1 10 100 1000
Impedance ()
Frequency (MHz)
ESD-R-38C-1
1
10000
1000
100
10
1T
2T
3T
1 10 100 1000
Impedance ()
Frequency (MHz)
ESD-R-47D-1
1 10 100 1000
1
10000
1000
100
10
Impedance ()
Frequency (MHz)
ESD-R-57D-1
1T
2T
3T
1
10000
1000
100
10
1T
2T
3T
1 10 100 1000
Impedance ()
Frequency (MHz)
ESD-R-38
1
10000
1000
100
10
1T
2T
3T
1 10 100 1000
Impedance ()
Frequency (MHz)
ESD-R-47
1 10 100 1000
1
10000
1000
100
10
1T
2T
3T
Impedance ()
Frequency (MHz)
ESD-R-57
Impedance vs. Frequency
Impedance vs. Frequency – Case Type
EMI Core
14
Ring Type
Toroidal Cores with Case
[RoHS Compliant]
Toroidal Cores with Case
[RoHS Compliant]
OD T
ID
ESD-R Series
Shape and Dimensions
1 10 100 1000
1
10000
1000
100
10
1T
2T
3T
Impedance ()
ESD-R-12D
Frequency (MHz)
1
10000
1000
100
10
1T
2T
3T
1 10 100 1000
Impedance ()
Frequency (MHz)
ESD-R-19
Impedance vs. Frequency
ESD-R-12D 12.9 6.0 6.4 ●black ESD-R-12S
ESD-R-19 19.0 9.0 11.0 ●white ESD-R-19S
ESD-R-19D 19.0 9.0 11.0 ●black ESD-R-19SD
ESD-R-25 26.0 14.0 15.0 ●white ESD-R-25S
ESD-R-25D 26.0 14.0 15.0 ●black ESD-R-25SD
ESD-R-38 39.0 17.5 14.0 ●white ESD-R-38D
ESD-R-38C-1 39.0 17.5 14.0 ●with tape(black) white －
ESD-R-47 48.0 25.5 16.0 ●white －
ESD-R-47D-1 48.0 25.5 16.0 ●with tape(black) white －
ESD-R-57 61.0 32.4 24.0 ●white －
ESD-R-57D-1 61.0 32.4 24.0 ●with tape(black) white －
Model Dimensions (mm) Frequency range Remarks Color of case
Compatible toroidal core
OD ID T
up to 100MHz up to 300MHz
(bare type)
(mainly AM band range) (mainly FM band range)
※Above frequency range is a reference only. Please test with actual device before use. ※Flame resistant grade of the case : UL94V-2
EMI Core
13
Ring Type
Ring Type
1
10000
1000
100
10
1T
2T
3T
1 10 100 1000
Impedance ()
Frequency (MHz)
ESD-R-14C-2
1
10000
1000
100
10
1T
2T
3T
1 10 100 1000
Impedance ()
Frequency (MHz)
ESD-R-15C
1
10000
1000
100
10
1T
2T
3T
1 10 100 1000
Impedance ()
Frequency (MHz)
ESD-R-17S-1
1 10 100 1000
1
10000
1000
100
10
1T
2T
3T
Impedance ()
Frequency (MHz)
ESD-R-19E-1
1
10000
1000
100
10
1T
2T
3T
1 10 100 1000
Impedance ()
Frequency (MHz)
ESD-R-25D-8
1
10000
1000
100
10
1T
2T
3T
1 10 100 1000
Impedance ()
Frequency (MHz)
ESD-R-25L-A
1
10000
1000
100
10
1T
2T
3T
1 10 100 1000
Impedance ()
Frequency (MHz)
ESD-R-31C-1
1
10000
1000
100
10
1T
2T
3T
1 10 100 1000
Impedance ()
Frequency (MHz)
ESD-R-28C-1
Impedance vs. Frequency
●本pdfカタログの記載内容は、予告なく変更あるいは製造を中止する場合がありますので、ご注文に際しては最新の情報をご確認ください。
●本pdfカタログ記載製品のご注文にあたっては、さらに詳細な仕様をご確認いただける納入仕様書をご請求ください。
●本pdfカタログ記載製品のご使用に際しては、印刷版カタログに記載の「安全に関するご注意」その他安全に関する注意事項をご確認いただくようお願いいたします。
9634ESDVOL11J1306E1
EMIコア
17
トロイダルタイプ
1
10000
1000
100
10
1T
2T
3T
1 10 100 1000
Impedance ()
Frequency (MHz)
ESD-R-17S-1
1 10 100 1000
1
10000
1000
100
10
1T
2T
3T
Impedance ()
Frequency (MHz)
ESD-R-19E-1
1
10000
1000
100
10
1T
2T
3T
1 10 100 1000
Impedance ()
Frequency (MHz)
ESD-R-25D-8
1
10000
1000
100
10
1T
2T
3T
1 10 100 1000
Impedance ()
Frequency (MHz)
ESD-R-25L-A
1
10000
1000
100
10
1T
2T
3T
1 10 100 1000
Impedance ()
Frequency (MHz)
ESD-R-31C-1
1
10000
1000
100
10
1T
2T
3T
1 10 100 1000
Impedance ()
Frequency (MHz)
ESD-R-28C-1
1
10000
1000
100
10
1T
2T
3T
1 10 100 1000
Impedance ()
Frequency (MHz)
ESD-R-31-P
インピーダンス特性
EMIコア
17
9© KEMET Electronics Corporation • P.O. Box 5928 • Greenville, SC 29606 (864) 963-6300 • www.kemet.com E5001_ESD-R • 3/28/2017
EMI Core – ESD-R Series Toroidal Cores
EMI Core
15
Ring Type
1
10000
1000
100
10
1T
2T
3T
Frequency (MHz)
1 10 100 1000
Impedance ()
ESD-R-19D
1
10000
1000
100
10
1T
2T
3T
1 10 100 1000
Impedance ()
Frequency (MHz)
ESD-R-25
1
10000
1000
100
10
1T
2T
3T
1 10 100 1000
Impedance ()
Frequency (MHz)
ESD-R-25D
1
10000
1000
100
10
1T
2T
3T
1 10 100 1000
Impedance ()
Frequency (MHz)
ESD-R-38C-1
1
10000
1000
100
10
1T
2T
3T
1 10 100 1000
Impedance ()
Frequency (MHz)
ESD-R-47D-1
1 10 100 1000
1
10000
1000
100
10
Impedance ()
Frequency (MHz)
ESD-R-57D-1
1T
2T
3T
1
10000
1000
100
10
1T
2T
3T
1 10 100 1000
Impedance ()
Frequency (MHz)
ESD-R-38
1
10000
1000
100
10
1T
2T
3T
1 10 100 1000
Impedance ()
Frequency (MHz)
ESD-R-47
1 10 100 1000
1
10000
1000
100
10
1T
2T
3T
Impedance ()
Frequency (MHz)
ESD-R-57
Impedance vs. Frequency
Impedance vs. Frequency – Case Type Cont’d
EMI Core
15
Ring Type
1
10000
1000
100
10
1T
2T
3T
Frequency (MHz)
1 10 100 1000
Impedance ()
ESD-R-19D
1
10000
1000
100
10
1T
2T
3T
1 10 100 1000
Impedance ()
Frequency (MHz)
ESD-R-25
1
10000
1000
100
10
1T
2T
3T
1 10 100 1000
Impedance ()
Frequency (MHz)
ESD-R-25D
1
10000
1000
100
10
1T
2T
3T
1 10 100 1000
Impedance ()
Frequency (MHz)
ESD-R-38C-1
1
10000
1000
100
10
1T
2T
3T
1 10 100 1000
Impedance ()
Frequency (MHz)
ESD-R-47D-1
1 10 100 1000
1
10000
1000
100
10
Impedance ()
Frequency (MHz)
ESD-R-57D-1
1T
2T
3T
1
10000
1000
100
10
1T
2T
3T
1 10 100 1000
Impedance ()
Frequency (MHz)
ESD-R-38
1
10000
1000
100
10
1T
2T
3T
1 10 100 1000
Impedance ()
Frequency (MHz)
ESD-R-47
1 10 100 1000
1
10000
1000
100
10
1T
2T
3T
Impedance ()
Frequency (MHz)
ESD-R-57
Impedance vs. Frequency
EMI Core
15
Ring Type
1
10000
1000
100
10
1T
2T
3T
Frequency (MHz)
1 10 100 1000
Impedance ()
ESD-R-19D
1
10000
1000
100
10
1T
2T
3T
1 10 100 1000
Impedance ()
Frequency (MHz)
ESD-R-25
1
10000
1000
100
10
1T
2T
3T
1 10 100 1000
Impedance ()
Frequency (MHz)
ESD-R-25D
1
10000
1000
100
10
1T
2T
3T
1 10 100 1000
Impedance ()
Frequency (MHz)
ESD-R-38C-1
1
10000
1000
100
10
1T
2T
3T
1 10 100 1000
Impedance ()
Frequency (MHz)
ESD-R-47D-1
1 10 100 1000
1
10000
1000
100
10
Impedance ()
Frequency (MHz)
ESD-R-57D-1
1T
2T
3T
1
10000
1000
100
10
1T
2T
3T
1 10 100 1000
Impedance ()
Frequency (MHz)
ESD-R-38
1
10000
1000
100
10
1T
2T
3T
1 10 100 1000
Impedance ()
Frequency (MHz)
ESD-R-47
1 10 100 1000
1
10000
1000
100
10
1T
2T
3T
Impedance ()
Frequency (MHz)
ESD-R-57
Impedance vs. Frequency
EMI Core
15
Ring Type
1
10000
1000
100
10
1T
2T
3T
Frequency (MHz)
1 10 100 1000
Impedance ()
ESD-R-19D
1
10000
1000
100
10
1T
2T
3T
1 10 100 1000
Impedance ()
Frequency (MHz)
ESD-R-25
1
10000
1000
100
10
1T
2T
3T
1 10 100 1000
Impedance ()
Frequency (MHz)
ESD-R-25D
1
10000
1000
100
10
1T
2T
3T
1 10 100 1000
Impedance ()
Frequency (MHz)
ESD-R-38C-1
1
10000
1000
100
10
1T
2T
3T
1 10 100 1000
Impedance ()
Frequency (MHz)
ESD-R-47D-1
1 10 100 1000
1
10000
1000
100
10
Impedance ()
Frequency (MHz)
ESD-R-57D-1
1T
2T
3T
1
10000
1000
100
10
1T
2T
3T
1 10 100 1000
Impedance ()
Frequency (MHz)
ESD-R-38
1
10000
1000
100
10
1T
2T
3T
1 10 100 1000
Impedance ()
Frequency (MHz)
ESD-R-47
1 10 100 1000
1
10000
1000
100
10
1T
2T
3T
Impedance ()
Frequency (MHz)
ESD-R-57
Impedance vs. Frequency
10© KEMET Electronics Corporation • P.O. Box 5928 • Greenville, SC 29606 (864) 963-6300 • www.kemet.com E5001_ESD-R • 3/28/2017
EMI Core – ESD-R Series Toroidal Cores
KEMET Electronic Corporation Sales Of ces
Foracompletelistofourglobalsalesoffices,pleasevisitwww.kemet.com/sales.
Disclaimer
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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.
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applications,butarenotintendedtoconstitute–andKEMETspecificallydisclaims–anywarrantyconcerningsuitabilityforaspecific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
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Although KEMET designs and manufactures its products to the most stringent quality and safety standards, given the current state of the art, isolated component
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property damage.
Although all product–related warnings, cautions and notes must be observed, the customer should not assume that all safety measures are indicted or that other
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