ESD-SR Series Snap-on Cores for Round Cables

EMI Cores
ESD-SR Series Snap-on Cores for Round Cables
Overview
Benefits
Applications
KEMET ESD-SR Series snap-on cores
are designed for use on round cable
and are available in a variety of sizes.
EMI cores are part of a family of passive
components which address the issues
of noise or electromagnetic interference
(EMI) in circuits or systems.
• Snap-on convenience
• Consumer electronics
• Split construction
Tips on EMI Core Usages
•EMI
Temperature
Index
of
65°C
Cores
•Ring
Meets
the requirements of UL94V-0
Type
Characteristics and how to count turns
• CTI: Rank 0
Tips on
EMI Core
Usagesadding turns　Number of turns are counted by how many times the lead wire
• Broad
range
by simply
EMI Cores
Ring Type
hole of the core. Do not count the number of lead wire winding
Characteristics and how to count turns
When desired performance can not be obtained just b
Number of turns are counted by how many times the lead wire pa
sses through the inner
canofbe
raised
b
y increasing th
e the
turn.
In as
this
case, the
hole of the core. Do not count thevalue
number
lead
wire winding
outside
core,
it results
EMI Cores
be checked that it is in the desired range as adding turns resu
When desired performance can not be obtained just b
Tips on EMI Core Usages
value can be raised b
y increasing th
y 1 turn, impedance characteristics
e frequency band should
（Rep
e turn. In this case, the
Figure 1range
– How
count turns
turns resu
be checked that it is in the desired
asto
adding
When the desired performance of an EMI core cannot be
obtained with a single pass through the core,
the impedance
Characteristics
and how to count turns
Number
characteristics can be changed with multiple
turns. of turns are counted by how many times the lead wire pa
（Represe ntative Example：ESD-R-16C）
1000
10000
hole of the core. Do not count the number of lead wire winding
10000
lts in lowering
down the
sses through the inner
outside the core, as it results
1000
3T
Resonance point changes to lower
Impedance Increase
Impedance (Ω)
A turn is counted by the number of lead-wire windings which
When desired
y 1 turn, impedance characteristics
2T
pass through the inner hole of the core. Windings
on theperformance can not be obtained just b 1T
2T
3T
100
e frequency band should
value can be raised b
y increasing th
e turn. In this case, the
1T
outside of the core do not count. See Figurebe1checked
for examples
that it is in the desired range as adding turns resu
lts in lowering down the
1T
2T
Figure
23T– Relationship
between
impedance
and turn count.
10
*Number
of lead wire wound
outside
the
core + 1
of one, two, and three turns.
= Number of read wire passes through the inner
= Number of read wire passes through the inner
hole of the core
= Turn count
Impedance Increase
Fig.1　How to count turns
10
1
ntative Example：ESD-R-16C）
1
1
10 changes to lower band100
Resonance point
1000
Frequency (MHz) Fig.2　Relationship b
Fig.1　How to count turns
3T
1000
Impedance (Ω)
Adding turns will result in higher impedance while also
lowering the effective frequency range. See Figure 2 for an
example.
100
1
(Representative example: ESD-R-16C)
hole
of the core
（Represe
*Number of lead wire wound outside the core + 1
10000
= Turn count
Impedance Increase
Turns and Impedance Characteristics
Impedance (Ω)
Ring Type
Fig.2　Relationship between impedance an
d turn count
2T
There are two materials
of ferrite, Ni-Zn series and Mn-Zn ser
1T
100
There are two materials of ferrite, Ni-Zn series and Mn-Zn ser
Core Material and Effective Frequency
Range
1T
2T
3T
10
Note that above
ies. Ni-Zn series is
e
ive for kHz band range.
e band range i
s a reference
e band range
i
s a reference only. Examination of
s
*Number of lead wire wound　Note
outside thethat
core +above
1
There are two ferrite material options for KEMET
= Number of read wire passes through the inner
with1 actual instrument
is necessary.
10
100
1000
with actual instrument is necessary. 1
hole of the core
EMI Cores: Nickel Zinc (NiZn) and Manganese
= Turn count
As Mn-Zn
series
lower
resistance compared
to Ni-Zn
seri
Frequency
(MHz)
As Mn-Zn series has lower resistance
compared
tohas
Ni-Zn
series,
make sure
to provide
Zinc (MnZn). Each core material has a different Fig.1　How to adequate
adequate between
insulation
before
count turns insulation before use.
Fig.2　Relationship
impedance
an use.
d turn counts
Figure 3 – Effective band range of MnZn and NiZn ferrite core material.
resistance and effective frequency range. The MnZn
Mn-Zn series vs Ni-Zn series
｜Z｜-f Characteristics
(representative
example)
Mn-Zn
series
vs Ni-Zn
series ring core)
｜Z｜-f Characteristics (r
(Representative example, measured
with same-dimension
core material has a lower resistance compared
to
condition:
ring core)
There are two materials of ferrite, Ni-Zn(measurement
series and Mn-Zn
sermeasured with same-dimension
ies.
Ni-Zn
series
is
e
(measurement condition: measured
with same-dimensi
1000
ive for kHz band range.
the NiZn; therefore, adequate insulation is required
1000
e band range i
s a reference only. Examination of
s
Note that above
before use.
with actual instrument is necessary.
AM band range
FM band range
Impedance (Ω)
It is recommended to measure the actual frequency
100
range effectiveness in the target application.
AM band range
10
FM band range
1
0.01
0.1
Fig.3　1
10
100
1000
Frequency (MHz)
1
0.1
One
te
1KEMET
10
world. One
Frequency1 (MHz)
E5005_ESD-SR • 3/25/2015
0.01
© KEMET Electronics Corporation • P.O. Box 5928 • Greenville, SC 29606 (864) 963-6300 • www.kemet.com
Fig.3　1
NiZn ser
NiZn series core
MnZn series core
10
Impedance (Ω)
Impedance (Ω)
make
AM
bandsure
rangeto provide
The NiZn core material is typically effective　As
for Mn-Zn series has lower resistance compared to Ni-Zn series,
NiZn series core
adequate insulation before use. 100
frequencies in the MHz band range such as the
100
vs Ni-Zn series
｜Z｜-fMnZn
Characteristics
(representative example)
series core
FM-band, while the MnZn core material is typicallyMn-Zn series(measurement
condition: measured with same-dimension ring core)
MnZn series core
effective for the kHz band range such as the AM- 1000
10
band. See Figure 3.
EMI
SD-SR Series
Temperature Index : 65˚C
CTI : Rank 0
EMI Cores – ESD-SR Series Snap-on Cores for Round Cables
Dimensions
– Millimeters
Shape and
Dimensions
ESD–SR–S
ESD-SR-S
B
B
ESD–SR–
ESD-SR
D
D
A
C
A
C
See Table 1 for dimensions
ESD-SR-□□□　（blank）Black
ESD-SR-□□□G　Gray
ESD-SR-□□□ V　Violet
※Black only for ESD-SR-S□□
Case Color
Environmental Compliance
Impedance
vs. Frequency
All KEMET
EMI cores are RoHS Compliant.
ESD-SR-100
1000
Impedance ()
Table 1 – Ratings & Part Number1TReference
100
10
1
1
Part Number
1
ESD-SR-100
ESD-SR-110
ESD-SR-S10
ESD-SR-120
ESD-SR-150
ESD-SR-160
ESD-SR-250
ESD-SR-S16
ESD-SR-S25
Impedance ()
1000
MI Core
8
Flame Class : UL94V-0
ESD-SR-110
1T
100
Dimensions (mm)
A Maximum
16.5
14.4
15.5
10
100
16.0
Frequency (MHz)
19.6
20.2
31.5
23.0
33.0
B Maximum
16.5
14.2
14.0
1000
16.4
20.3
20.0
31.6
20.0
29.0
10
C Maximum
21.0
28.0
18.51 1
33.0
37.4
39.0
38.0
20.5
15.5
øD
Weight
(g)
Case Color1
≤ 6.0
7.2
≤ 5.0
6.9
≤ 6.010
4.1100
≤ 6.0
13.3
Frequency
(MHz)
≤ 7.0
23.4
≤ 9.0
22.7
≤ 13.0
59.5
≤ 8.0
12.9
≤ 14.5
21.3
Black, Gray, Violet
Black, Gray, Violet
Black
1000
Black, Gray, Violet
Black, Gray, Violet
Black, Gray, Violet
Black, Gray, Violet
Black
Black
Case color code added to end of ESD-SR part number: Blank = black, G = gray, V = violet. ESD-SR-S series only available in black.
© KEMET Electronics Corporation • P.O. Box 5928 • Greenville, SC 29606 (864) 963-6300 • www.kemet.com
E5005_ESD-SR • 3/25/2015
2
D
D
A
C
A
C
ESD-SR-□□□　（blank）Black
ESD-SR-□□□G　Gray
ESD-SR-□□□ V　Violet
※Black only for ESD-SR-S□□
Case Color
EMI Cores – ESD-SR Series Snap-on Cores for Round Cables
Impedance vs. Frequency
Impedance vs. Frequency
ESD-SR-100
1T
100
10
1
Snap-on TypeEMI
Cores
1
10
100
1T
100
10
1
1000
Frequency (MHz)
Ring Type
ESD-SR-110
1000
Impedance ()
Impedance ()
1000
1
10
100
Frequency (MHz)
1000
Snap-on TypeEMI Cores
Impedance
Ring
Type vs. Frequency
EMI
Core
ESD-SR-S10
18
Snap-on TypeEMI
Cores
1000
1T
Impedance vs. Frequency
1000
100
10
100
10
1
10
1
10000
ImpedanceImpedance
()
Impedance
()
()
1000
1
10000
100
1000
10000
ESD-SR-S10
10
Frequency (MHz)
1
10
3T
10
2T Frequency
ESD-SR-150
3T
3T
10
2T
Frequency (MHz)
ImpedanceImpedance
()
Impedance
()
()
10
ImpedanceImpedance
()
Impedance
()
()
1000
100
1000
100
1000
Frequency (MHz)
ESD-SR-250
1
3T
10
2T Frequency
ESD-SR-250
1T
(MHz)
2T
3T
1T
10
2T
100
Frequency (MHz)
1000
1T
ESD-SR-S25
10
100
1000
100
1000
10
100
1000
10
100
1000
Frequency (MHz)
ESD-SR-S25
1
10
3T
Frequency (MHz)
2T
ESD-SR-S25
10
100
1000
1
10 1
3T
ESD-SR-120
3T
2T
1T
ESD-SR-120
3T
2T
10
3T
1
10 1
100
1000
1
10000
100
1000
1000
100
1000
100
1000
100
1000
100
1000
100
1000
10
100
1000
10
100
1000
Frequency (MHz)
3T
10
2T
Frequency (MHz)
ESD-SR-160
1T
3T
2T
3T
1T
2T
10
Frequency (MHz)
ESD-SR-S16
1T
1
10000
10 1
10
Frequency (MHz)
ESD-SR-S16
1
3T
10
Frequency
(MHz)
2T
ESD-SR-S16
1T
3T
10
2T
100
1000
1
10 1
100
1
10 1
1
100
10
ESD-SR-160
1
1
10 1
100
1000
1000
1T
100
1000
1000
1
10000
100
Frequency (MHz)
ESD-SR-160
10
100
1T
10 2T
1
10000
10 1
10000
3T
1
10000
10 1
10000
100
ESD-SR-120
100
1000
10000
ESD-SR-250
1T
1
10 1
100
1000
(MHz)
1T
10
1000
1
10000
1000
2T
100
1000
100
100
1T
1
10000
10 1
10000
1000
ESD-SR-150
1
1
10 1
100
1000
1000
100
Frequency (MHz)
100
1000
1000
1
10000
100
100
1000
10000
ESD-SR-150
10
100
1T
1T
1
1000
10000
ImpedanceImpedance
()
Impedance
()
()
1000
100
ImpedanceImpedance
()
Impedance
()
()
ImpedanceImpedance
()
Impedance
()
()
Impedance
Ring
Type vs. Frequency
ESD-SR-S10
ImpedanceImpedance
()
Impedance
()
()
10000
1
3T
1T
10
2T
Frequency
(MHz)
1T
Frequency (MHz)
Frequency (MHz)
1T
2T
1T
3T
© KEMET Electronics Corporation
• P.O.
Box Frequency
5928 • Greenville,
SC 29606 (864) 963-6300 • www.kemet.com
100
(MHz)
2T
1
10 1
1T
Frequency (MHz)
E5005_ESD-SR • 3/25/2015
3
10000
1000
Impedance ()
Impedance ()
10000
3T
2T
100
EMI Cores – ESD-SR Series Snap-on Cores
for Round Cables
1T
10
Impedance vs. Frequency Cont’d
1
Impedance ()
10000
1
10
100
1000
100
1000
Frequency (MHz)
ESD-SR-S25
1000
3T
2T
100
1T
10
1
1
10
100
Frequency (MHz)
1000
1000
3T
100
2T
1T
10
1
1
10
Frequency (MHz)
EMI Core
19
© KEMET Electronics Corporation • P.O. Box 5928 • Greenville, SC 29606 (864) 963-6300 • www.kemet.com
E5005_ESD-SR • 3/25/2015
4
EMI Cores – ESD-SR Series Snap-on Cores for Round Cables
KEMET Corporation
World Headquarters
Europe
Asia
Southern Europe
Sasso Marconi, Italy
Tel: 39-051-939111
Northeast Asia
Hong Kong
Tel: 852-2305-1168
Mailing Address:
P.O. Box 5928
Greenville, SC 29606
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Tel: 389-2-55-14-623
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Tel: 86-755-2518-1306
www.kemet.com
Tel: 864-963-6300
Fax: 864-963-6521
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Landsberg, Germany
Tel: 49-8191-3350800
Corporate Offices
Fort Lauderdale, FL
Tel: 954-766-2800
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Tel: 49-2307-438110
North America
Northern Europe
Harlow, United Kingdom
Tel: 44-1279-460122
Taipei, Taiwan
Tel: 886-2-27528585
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Tel: 358-9-5406-5000
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Singapore
Tel: 65-6701-8033
2835 KEMET Way
Simpsonville, SC 29681
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Tel: 407-855-8886
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Tel: 978-658-1663
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Tel: 248-306-9353
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Tel: 86-10-5877-1075
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Tel: 91-806-53-76817
West
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Tel: 408-433-9950
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Tel: 52-33-3123-2141
Note: KEMET reserves the right to modify minor details of internal and external construction at any time in the interest of product improvement. KEMET does not
assume any responsibility for infringement that might result from the use of KEMET Capacitors in potential circuit designs. KEMET is a registered trademark of
KEMET Electronics Corporation.
© KEMET Electronics Corporation • P.O. Box 5928 • Greenville, SC 29606 (864) 963-6300 • www.kemet.com
E5005_ESD-SR • 3/25/2015
5
EMI Cores – ESD-SR Series Snap-on Cores for Round Cables
Disclaimer
This product has been made available through a Private Label Agreement and a Development and Cross-Licensing Agreement between KEMET and NEC TOKIN to expand market
and product offerings for both companies and their respective customers. For more information, please visit http://www.kemet.com/nectokin.
All product specifications, 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 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 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 indicted or that other measures may not
be required.
© KEMET Electronics Corporation • P.O. Box 5928 • Greenville, SC 29606 (864) 963-6300 • www.kemet.com
E5005_ESD-SR • 3/25/2015
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