1© KEMET Electronics Corporation • KEMET Tower • One East Broward Boulevard E5007_ESD-FPD • 3/31/2020
Fort Lauderdale, FL 33301 USA • 954-766-2800 • www.kemet.com
One world. One KEMET
EMI Cores
ESD-FPD Series Split Cores with Metal Clamp
for Flat Cables for High Frequency (Bare)
Benets
• NiZn≤300MHz(FMbandrange)optionsavailable
• Split construction
• Easytoinstallthroughitsclampmecanism
• Quicksolutionforpost-cableassemblynoiseissue
• Stainless steel clamp
Overview
TheKEMETESD-FPDSeriessplitcoresaredesignedfor
useonatcable.AwiderangeofNickelZinc(NiZn)options
allowfortargetingofspecichighfrequencyranges.Each
product features two core parts and two stainless steel
clamps.
EMI cores are part of a family of passive components which
addresstheissuesofnoiseorelectromagneticinterference
(EMI)incircuitsorsystems.
Applications
• Oceequipment
• Homeappliances
• Inkjet printers
• Consumer electronics
• Industrialequipment
• Testandmeasurementequipment
• Medicalequipment
• Audio-visualequipment
Part Number System
ESD- FPD- 16
Series Form Type ApplicableCable Clamp Type
ESD- Split xx = xx Core Blank = Stainless steel clamp
Each part number includes two ferrite parts and two clamps, as shown in the picture.
2© KEMET Electronics Corporation • KEMET Tower • One East Broward Boulevard E5007_ESD-FPD • 3/31/2020
Fort Lauderdale, FL 33301 USA • 954-766-2800 • www.kemet.com
EMI Core – ESD-FPD Series Split Cores with Metal Clamp for Flat Cables for High Frequency (Bare)
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.
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AM-
band.SeeFigure1.
It is recommended to measure the actual
frequencyrangeeffectivenessinthetarget
application.
Environmental Compliance
AllKEMETEMIcoresareRoHScompliant.
Dimensions – Millimeters
Core Clamp (Stainless Steel)
See Table 1 for dimensions
Impedance (Ω)
Frequency (MHz)
AM band range FM band range
Mn-Zn series core
Ni-Zn series core
1,000
100
10
1
0.01 0.1 1 10 100 1,000
Figure 1 – Effective band range of Mn-Zn and Ni-Zn ferrite core material.
(Representative example, measured with same-dimension ring core)
3© KEMET Electronics Corporation • KEMET Tower • One East Broward Boulevard E5007_ESD-FPD • 3/31/2020
Fort Lauderdale, FL 33301 USA • 954-766-2800 • www.kemet.com
EMI Core – ESD-FPD Series Split Cores with Metal Clamp for Flat Cables for High Frequency (Bare)
Magnetic Permeability of Ferrite Material
Inordertoachievemostecient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1.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windings.Thisfrequencydependence
ofthemagneticpermeabilityasshowninthegureservesforreferencepurposesonlyanditshouldbetestedontheactual
device to determine its effectiveness.
S18H,S15H,10H,7H,5H,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
10 kHz
0
10,000
20,000
100 kHz 1 MHz 10 MHz 100 MHz 1 GHz
Effective Frequency Range
Magnetic Permeability
Ni-Zn Series
1400L
700L
S18H
S15H
10H
7H
5H
Mn-Zn Series
Lower magnetic permeability:
Higher noise suppression effect
in the higher frequency range
Higher magnetic permeability:
Higher noise suppression effect
in the lower frequency range
4© KEMET Electronics Corporation • KEMET Tower • One East Broward Boulevard E5007_ESD-FPD • 3/31/2020
Fort Lauderdale, FL 33301 USA • 954-766-2800 • www.kemet.com
EMI Core – ESD-FPD Series Split Cores with Metal Clamp for Flat Cables for High Frequency (Bare)
Installation Example
Performance Characteristics
Item Performance Characteristics
Operatingtemperature −25°Cto+85°C
Frequencyrange Highfrequency
Outerlength 37.0 – 80.0 mm
Outer width 10.0 mm
Innerlength 25.4 – 68.6 mm
Inner width 2.0 – 2.6 mm
Thickness 12.7 mm
Type Bare with stainless steel clamp
Material NiZn 700L
Table 1 – Ratings & Part Number Reference
Part
Number
Dimensions (mm) Weight
Applicable
Cable
Frequency Range1Material
A B C D E (g) ≤ 300 MHz
(FM band range) MnZN NiZn
ESD-FPD-16
37.0 ±1.0
25.4 ±1.0
10.0 ±2.0
12.7 ±1.0
2.6 ±1.0
21.58
16 Core
X
–
700L
ESD-FPD-34
60.0 ±1.0
48.3 ±1.0
10.0 ±2.0
12.7 ±1.0
2.0 ±1.0
32.28
34 Core
X
–
700L
ESD-FPD-40
68.0 ±1.0
56.0 ±1.0
10.0 ±2.0
12.7 ±1.0
2.0 ±1.0
37.08
40 Core
X
–
700L
ESD-FPD-50
80.0 ±1.0
68.6 ±1.0
10.0 ±2.0
12.7 ±1.0
2.0 ±1.0
42.48
50 Core
X
–
700L
1 Frequency range is for reference only. Please test with actual device before use.
5© KEMET Electronics Corporation • KEMET Tower • One East Broward Boulevard E5007_ESD-FPD • 3/31/2020
Fort Lauderdale, FL 33301 USA • 954-766-2800 • www.kemet.com
EMI Core – ESD-FPD Series Split Cores with Metal Clamp for Flat Cables for High Frequency (Bare)
Impedance vs. Frequency
Packaging
Part Number Packaging Type Pieces per Box
ESD-FPD-16
Tray
800
ESD-FPD-34 250
ESD-FPD-40 240
ESD-FPD-50
6© KEMET Electronics Corporation • KEMET Tower • One East Broward Boulevard E5007_ESD-FPD • 3/31/2020
Fort Lauderdale, FL 33301 USA • 954-766-2800 • www.kemet.com
EMI Core – ESD-FPD Series Split Cores with Metal Clamp 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eldsasthismightmagnetizetheproduct.
Temperatureuctuationsshouldbeminimizedtoavoidcondensationorcracksontheparts.Mechanicalshockscanbring
to cracks as well.
Export Control
For customers in Japan
Forproductsthatarecontrolleditemssubjecttothe“ForeignExchangeandForeignTradeLaw”ofJapan,theexportlicense
speciedbythelawisrequiredforexport.
For customers outside Japan
EMICoreproductsshouldnotbeusedorsoldforuseinthedevelopment,production,stockpilingorutilizationofany
conventionalweaponsormass-destructiveweapons(nuclearweapons,chemicalorbiologicalweapons,ormissiles),orany
other weapons.
7© KEMET Electronics Corporation • KEMET Tower • One East Broward Boulevard E5007_ESD-FPD • 3/31/2020
Fort Lauderdale, FL 33301 USA • 954-766-2800 • www.kemet.com
EMI Core – ESD-FPD Series Split Cores with Metal Clamp for Flat Cables for High Frequency (Bare)
KEMET Electronics Corporation Sales Offi ces
Foracompletelistofourglobalsalesoces,pleasevisitwww.kemet.com/sales.
Disclaimer
Allproductspeci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specicallydisclaims–anywarrantyconcerningsuitabilityforaspeci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indicted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Tra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.