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ESD-R Datasheet(PDF) 1 Page - Kemet Corporation |
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ESD-R Datasheet(HTML) 1 Page - Kemet Corporation |
1 / 10 page 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. Benefits • MnZn(≤100MHz,AMbandrange) andNiZn(≤300MHz,FMband 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 bESD-R Series OD T Installation Example Shape 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-10S 10.5 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-12S 12.0 7.0 5.5 ● ESD-R-14C 14.0 7.0 3.0 ● ESD-R-14E 14.0 10.0 8.0 ● ESD-R-14S 14.3 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-17S 17.5 9.5 28.5 ● ESD-R-18SD 18.0 10.0 6.0 ● ESD-R-19S 18.5 10.0 10.0 ● ESD-R-19SD 18.5 10.0 10.0 ● ESD-R-22SD 22.5 13.8 6.4 ● ESD-R-25SD 25.0 15.0 12.0 ● ESD-R-25S 25.0 15.0 12.0 ● ESD-R-26S 26.0 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 Frequency (MHz) ESD-R-12C-2 1 10000 1000 100 10 1T 2T 3T 1 10 100 1000 Frequency (MHz) ESD-R-14A Impedance vs. Frequency Toroidal Cores (Coated Type) [RoHS Compliant] Toroidal Cores (Coated Type) [RoHS Compliant] bESD-R Series OD T 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 bESD-R Series Shape and Dimensions 1 10 100 1000 1 10000 1000 100 10 1T 2T 3T ESD-R-12D Frequency (MHz) 1 10000 1000 100 10 1T 2T 3T 1 10 100 1000 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 ontheoutsideofthecoredonotcount.SeeFigure1for examples of one, two, and three turns. Adding turns will result in higher impedance while also loweringtheeffectivefrequencyrange.SeeFigure2for 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. Forreference,theNi-Zncorematerialis typically effective for the frequencies in the MHzbandrangesuchastheFM-band,while the Mn-Zn core material is typically effective for thekHzbandrangesuchastheAM-band.See Figure3. 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 1000 100 10 1 0.01 0.1 1 10 100 1000 Resonance point changes to lower band 3T 2T 1T Frequency (MHz) Frequency (MHz) 10000 1 10 100 1000 1000 100 10 1 3T 2T 1T 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 1000 100 10 1 0.01 0.1 1 10 100 1000 Resonance point changes to lower band 3T 2T 1T Frequency (MHz) Frequency (MHz) 10000 1 10 100 1000 1000 100 10 1 3T 2T 1T 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 1000 100 10 1 0.01 0.1 1 10 100 1000 Resonance point changes to lower band 3T 2T 1T Frequency (MHz) Frequency (MHz) 10000 1 10 100 1000 1000 100 10 1 3T 2T 1T Figure 3 – Effective band range of Mn-Zn and Ni-Zn ferrite core material. (Representative example, measured with same-dimension ring core) |
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