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Ferrite EMI Cable Cores

Ferrite EMI Cable Cores
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Ferrite EMI Cable Cores

Product catalog summary
Overview: Laird Technologies specializes in creating customized, performance-critical products for wireless and advanced electronic applications. They serve industries such as aerospace, automotive electronics, computers, consumer electronics, data communications, medical equipment, military, network equipment, and telecommunications, providing unique solutions and extensive global customer support.
Ferrite Material Impedance Comparison: The document compares ferrite materials based on impedance across various frequencies, emphasizing the importance of selecting the right material for effective EMI attenuation. High-performance materials are recommended for their efficiency and cost-effectiveness.
Design & Selection Guidelines: Guidelines include choosing the smallest core that fits over the cable, installing cores near noise sources, and using high-performance materials to reduce size and cost. It also advises installing cores in common-mode configurations and using additional wire turns to increase impedance.
Product Specifications: The catalog details various ferrite EMI cores, including high-frequency cylindrical and split snap-on cores, broadband cylindrical and split cores, and low-frequency cylindrical cores. Specifications include dimensions, net impedance values, and applicable frequency ranges.
High Frequency Ferrite Cylindrical EMI Cores: Designed for round cables and wiring harnesses, these cores have net impedance values provided for different frequencies, with specific part numbers and corresponding dimensions listed.
Broadband EMI Ferrite Cores: The catalog features broadband cylindrical and split/snap-on cores, sorted by inside diameter and impedance, suitable for retrofit and post-assembly operations, offering effective EMI suppression for round cables and wire assemblies.
Compliance and Customization: All parts are lead-free and RoHS compliant. The catalog offers a limited selection, with additional options and custom parts available through Laird Technologies' website.
Disclaimer and Warranty Information: The document includes a disclaimer stating that the information and recommendations are provided in good faith but without warranties regarding accuracy or completeness. Users should determine the suitability of the information for their purposes, and Laird Technologies is not liable for any damages from the use of the information or products.
Contact Information: Contact details for Laird Technologies' offices in North America, Asia, and Europe are provided, including addresses, phone numbers, and fax numbers for locations in the USA, Mexico, China, Taiwan, Korea, Japan, Singapore, Germany, and the Czech Republic.
Company Overview: Laird Technologies is a leader in designing and supplying customized performance-critical products for wireless and advanced electronic applications, collaborating with customers across various industries.
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Catalog excerpts

Ferrite EMI Cable Cores-1

Electro-Magnetic Interference Solutions www.lairdtech.com size="-2">

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Ferrite EMI Cable Cores-4

LF Low Frequency28 Broadband High Performance HF High Frequency > ) Ω Select the appropriate ferrite material for the EMI frequency range to be attenuated (refer to cable core material impedance vs. frequency chart above). ׷ Ferrite material composition affects core performance most. High performance material is best. Cheap, low performance materials require the use of larger, heavier cores. Use high performance ferrite material and select the smallest core that will do the job. High performance material allows the use of smaller, lighter and lower cost cores. Shape (design) and mass of the ferrite...

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Broadband (28) round cable parts are sorted by inside diameter on page 12 and sorted by impedance on page 13. Material TypeProduct CodePart Size CodeSelected Dimension Code (Usually Length)Additional PartDescriptionAdditional Part Description or Coating Part NumberDIMENSIONSmm(inches)Typical Impedance ( Z ) in Ohms ( Ω )ABC@ 25 MHz@ 100 MHz@ 300 MHz > 6.35(0.250)3.18(0.125)15.88(0.625) ABC 28B0250-100 9018230028B0268-000 > 6.78(0.267)3.99(0.157) 14.22(0.560) 6513826028B0275-000 > 7.00(0.276)3.80(0.150)13.50(0.531) 6914626828B0296-000 > 7.52(0.296)2.39(0.94)7.54(0.297) 7516027028B0315-000 > 8.00(0.315)3.17(0.125)4.78(0.188)...

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Ferrite EMI Cable Cores-10

Broad Band High Performance Material is 28 > High Frequency Material is HF >

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All impedance values for high frequency cores are NET; NET impedance is impedance of the ferrite core only. All impedance contribution from the test wire and fixtures has been removed. Material TypeProduct CodePart Size Code(mm)Selected Dimension Code (Usually Length)Additional PartDescriptionAdditional Part Description or Coating Code Ω ) Ω @ 500 KHz Ω @ 1 MHz Ω @ 5 MHz# of Wire Turns# of Wire Turns# of Wire TurnsABC125125125 PARTNUMBERDIMENSIONSmm(inches)Typical Impedance ( Z ) in Ohms ( LFB090050-000 > 9.00(0.354)5.00(0.197)7.00(0.275) 1258370219055836140867LFB095051-000 > 9.50(0.374)5.10(0.201)19.05(0.750)...

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Ferrite EMI Cable Cores-19

ABDCE ABDCE Figure 1Figure 2 DEBA C Figure 3 Part #28S2001-2A2 split ferrite core assembly with hinged black plastic case > Plastic Clip Assemblies: To specify one core side and one white plastic clip together, replace the second ferrite core part number character after the dash with the letter P Ӕ (example: 28S2022-0 P 0). One complete assembly of two ferrite core sides (28 material) with two plastic clips would be specified as follows: 2 of part # 28S2022-0 P 0. Attachment ears are standard. Metal Clip Assemblies: To specify one core side and one metal clip together, replace the second ferrite...

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Ferrite EMI Cable Cores-23

Bld. 1, Dejin Industrial Park Fuyuanyi Road, Heping Community Fuyong Town, Bao An distric Shenzhen City, Guangdong Provice P.R. China 518103 Phone: +86-21-6442-8018 Fax: +86-21-6442-8018 > 750E Chai Chee Road #03-07/08 Technopark, Chai Chee 469005, Singapore Phone: +65-6-243-8022 Fax: +65-6-243-8021 > Unit 1311, Main TowerGuangdong International Hotel No. 339, Huan Shi Dong Lu Guangzhou City, Guangdong Province P.R. China, 510098 Phone: +86-20-8331-2186 Fax: +86-20-8331-2196 > 1200 East 36th Street P.O. Box 510 Chattanooga, TN., 37401-0510 Phone: +1-423-308-1690 Fax: +1-423-308-1622 > No. 228...

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Laird Technologies is the world-leader in the design and supply of customized performance-critical products for wireless and other advanced electronic applications. Laird Technologies partners with its customers to help find solutions for applications in various industries such as Aerospace, Automotive Electronics, Computer, Consumer Electronics, Data Communications, Medical Equipment, Military, Network Equipment and Telecommunication industries. www.lairdtech.com SIP-CAT-CABLECORE#46-0208 size="-1">

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*Prices are pre-tax. They exclude delivery charges and customs duties and do not include additional charges for installation or activation options. Prices are indicative only and may vary by country, with changes to the cost of raw materials and exchange rates.