Datasheet

ManualsBrandsKEMET ManualsFerritesFerrite Toroidal Core Ni-Zn 33.2mm 300MHz

1© KEMET Electronics Corporation • KEMET Tower • One East Broward Boulevard E5003_ESD-R-H • 9/14/2018

Fort Lauderdale, FL 33301 USA • 954-766-2800 • www.kemet.com

One world. One KEMET

EMI Cores

ESD-R-H Toroidal Cores for Round Cables for

Low & High Frequency & High Heat Resistance (with case)

Benets

• Proprietary core material for high performnace in low and

high frequency range

• Solid construction

• Wideroperatingtemperaturerangefrom−40°Cto+120°C

• UL94V–0ameretardantratedcase

• Cableholdingmechanismforxingcableswithbandsand

installation with two M4 screws

Overview

The KEMET ESD-R-H Series solid toroidal cores feature

high heat resistance for round cables. KEMET’s unique

core material enables high performance in low frequency

range with the Manganese Zinc (MnZn) solution and in

high frequency range with the Nickel Zinc (NiZn) option. A

commonvalueisalsospecicallydesignedwithacable

holding mechanism for round cable in higher

heat environment.

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

• Automotive inverters

• Automotive chargers

• Automotive DC/DC converters

• Consumer electronics

• Air conditioners

• Power conditioners

• Refrigerators

• Washing machines

• Industrial equipment

• General purpose inverters

• Robots

• Information and communication devices

• Medical equipment

• Audio-visual equipment

Summary of content (10 pages)

PAGE 1
EMI Cores ESD-R-H Toroidal Cores for Round Cables for Low & High Frequency & High Heat Resistance (with case) Overview Applications The KEMET ESD-R-H Series solid toroidal cores feature high heat resistance for round cables. KEMET’s unique core material enables high performance in low frequency range with the Manganese Zinc (MnZn) solution and in high frequency range with the Nickel Zinc (NiZn) option.
PAGE 2
EMI Core – ESD-R-H Toroidal Cores for Round Cables for Low & High Frequency & High Heat Resistance (with case) Part Number System ESD- R- 12 M-H Series Shape Type Core Size Outer Dimension Code (mm) Core Material ESD- Ring See Table 1 Turns and Impedance Characteristics H / M-H = Mn-Zn N-H = Ni-Zn Figure 1 – How to count turns 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.
PAGE 3
EMI Core – ESD-R-H Toroidal Cores for Round Cables for Low & High Frequency & High Heat Resistance (with case) 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.
PAGE 4
EMI Core – ESD-R-H Toroidal Cores for Round Cables for Low & High Frequency & High Heat Resistance (with case) Environmental Compliance All KEMET EMI cores are RoHS compliant. Dimensions – Millimeters Case Type ID T OD See Table 1 for dimensions Cable Holding Mechanism Case Type (ESD-R-47H) 6.5 28.5 Maximum 3.0 18.5 Maximum 16.5 10 20 52.5 83 Ø22.7 5.2 ±0.2 6.
PAGE 5
EMI Core – ESD-R-H Toroidal Cores for Round Cables for Low & High Frequency & High Heat Resistance (with case) Installation Example Case Type Cable Holding Mechanism Case Type (ESD-R-47H) Performance Characteristics Item Performance Characteristics Operating temperature Frequency range Outer diameter Inner diameter Thickness Type Case flame resistant rating Material −40°C to +120°C Low frequency and high frequency 15.0 – 61.0 mm 5.0 – 33.2 mm 9.0 – 25.
PAGE 6
EMI Core – ESD-R-H Toroidal Cores for Round Cables for Low & High Frequency & High Heat Resistance (with case) Impedance vs. Frequency © KEMET Electronics Corporation • KEMET Tower • One East Broward Boulevard Fort Lauderdale, FL 33301 USA • 954-766-2800 • www.kemet.
PAGE 7
EMI Core – ESD-R-H Toroidal Cores for Round Cables for Low & High Frequency & High Heat Resistance (with case) Impedance vs. Frequency cont. © KEMET Electronics Corporation • KEMET Tower • One East Broward Boulevard Fort Lauderdale, FL 33301 USA • 954-766-2800 • www.kemet.
PAGE 8
EMI Core – ESD-R-H Toroidal Cores for Round Cables for Low & High Frequency & High Heat Resistance (with case) Impedance vs. Frequency cont. Packaging Part Number ESD-R-12M-H ESD-R-12N-H ESD-R-19M-H ESD-R-19N-H ESD-R-25M-H ESD-R-25N-H ESD-R-38M-H ESD-R-38N-H ESD-R-47M-H ESD-R-47N-H ESD-R-57M-H ESD-R-57N-H ESD-R-47H Packaging Type Pieces per Box 2,000 480 300 Tray © KEMET Electronics Corporation • KEMET Tower • One East Broward Boulevard Fort Lauderdale, FL 33301 USA • 954-766-2800 • www.kemet.
PAGE 9
EMI Core – ESD-R-H Toroidal Cores for Round Cables for Low & High Frequency & High Heat Resistance (with case) 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.
PAGE 10
EMI Core – ESD-R-H Toroidal Cores for Round Cables for Low & High Frequency & High Heat Resistance (with case) KEMET Electronics Corporation Sales Oﬃces For a complete list of our global sales offices, please visit www.kemet.com/sales. Disclaimer All product specifications, statements, information and data (collectively, the “Information”) in this datasheet are subject to change.