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1© KEMET Electronics Corporation • KEMET Tower • One East Broward Boulevard E5011_ESD-R-NC23 • 9/12/2018

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

One world. One KEMET

EMI Cores

ESD-R-NC23 Toroidal Nanocrystal Cores for

Round Cables for Low & High Frequency (with case)

Benets

• Wide frequency range

• Solid construction

• From small to large diameter ring type

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

• UL94V–0ameretardantratedcase

Overview

The KEMET ESD-R-NC23 Series solid toroidal cores are

designed for use on round cables. KEMET’s nanocrystal

material allows effective noise suppression in a wide

frequency range, which is an impressive solution for any

conducted or radiated noise in the kHz to MHz regions.

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

• General purpose inverters

• HVAC

• Air conditioners

• Power conditioners

• Industrial equipment

• Business multifunction printers

Part Number System

ESD- R- 291216H- NC 23

Series Shape Type

Core Size

OD & ID & T Code (mm)

Core Material MaterialSpecication

ESD- Ring See Table 1 Nanocrystal 23

Summary of content (9 pages)

PAGE 1
EMI Cores ESD-R-NC23 Toroidal Nanocrystal Cores for Round Cables for Low & High Frequency (with case) Overview Applications The KEMET ESD-R-NC23 Series solid toroidal cores are designed for use on round cables. KEMET’s nanocrystal material allows effective noise suppression in a wide frequency range, which is an impressive solution for any conducted or radiated noise in the kHz to MHz regions.
PAGE 2
EMI Core – ESD-R-NC23 Toroidal Nanocrystal Cores for Round Cables for Low & High Frequency (with case) Turns and Impedance Characteristics 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. 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.
PAGE 3
EMI Core – ESD-R-NC23 Toroidal Nanocrystal Cores for Round Cables for Low & High Frequency (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 or metal material will be effective in a certain frequency band.
PAGE 4
EMI Core – ESD-R-NC23 Toroidal Nanocrystal Cores for Round Cables for Low & High Frequency (with case) Environmental Compliance All KEMET EMI cores are RoHS compliant. Dimensions – Millimeters ID OD T See Table 1 for dimensions Installation Example © KEMET Electronics Corporation • KEMET Tower • One East Broward Boulevard Fort Lauderdale, FL 33301 USA • 954-766-2800 • www.kemet.
PAGE 5
EMI Core – ESD-R-NC23 Toroidal Nanocrystal Cores for Round Cables for Low & High Frequency (with case) 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 Broadband (low and high) frequency 29.0 – 146.0 mm 12.7 – 96.0 mm 16.0 – 37.
PAGE 6
EMI Core – ESD-R-NC23 Toroidal Nanocrystal Cores for Round Cables for Low & High Frequency (with case) Impedance vs. Frequency cont. Bare Type Coated Type © 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-NC23 Toroidal Nanocrystal Cores for Round Cables for Low & High Frequency (with case) Impedance vs. Frequency cont. Case Type Packaging Part Number ESD-R-291216H-NC23 ESD-R-341616H-NC23 ESD-R-421617H-NC23 ESD-R-512936H-NC23 ESD-R-512419H-NC23 ESD-R-613325H-NC23 ESD-R-854626H-NC23 ESD-R-1105826H-NC23 ESD-R-1469637H-NC23 Packaging Type Pieces per Box 300 Tray © KEMET Electronics Corporation • KEMET Tower • One East Broward Boulevard Fort Lauderdale, FL 33301 USA • 954-766-2800 • www.
PAGE 8
EMI Core – ESD-R-NC23 Toroidal Nanocrystal Cores for Round Cables for Low & High Frequency (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 9
EMI Core – ESD-R-NC23 Toroidal Nanocrystal Cores for Round Cables for Low & High Frequency (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.