The Most Widely Used EMI Solution in the Industry: Ferrite Chip Beads
EMI and electrical noise can originate at, or affect, almost any device on a circuit board. Ferrite chip beads provide the most widely used, cost-effective, compact EMI filtering option for circuit designers. Ferrite chip beads provide lossy impedance at a variety of impedance and frequency ranges. Compact package sizes, as small as EIA 0201, assist dense circuit board construction and allow the ferrite chip beads to be placed close to the EMI source or receptor.
Peak impedances as over 5000 ohms are available, with low DC resistances (DCR) down to 0.004 ohms, giving designers a wide range of filtering options. High frequency versions to 3 GHz and high current parts up to 10 amps further extend the problem-solving range of these products.
Laird Technologies’ ferrite chip beads are ideal for miniature and portable electronic system devices and digital signal lines. They offer space efficiency with superior EMI noise filtering over a wide frequency range of low to several hundred MHz for broad-band signal interfaces, up to GHz ranges for high frequency signal lines.
With a small footprint and excellent performance retention under bias, Laird Technologies’ ferrite chip beads offer superior impedance versus frequency characteristics that are economical with a broad range of impedance values and current ratings.
Contact Laird Technologies today for your complete application solutions for ferrite chip beads.
| Chip Beads - Signal Filtering | |
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Full range of chip beads with sizes from 0402 to 1806 and impedance values up to 2000 ohms. |
| Chip Beads - Power Filtering | |
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The highest current chip beads in the industry going up to 10 amps in a compact surface mount chip bead. |
| Chip Beads - High Frequency | |
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Provides significant levels of impedance from 100 MHz to beyond 1Ghz. |
| Chip Beads - Low Frequency | |
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Assembled parts that are surface mounted, providing significant levels of impedance. |
| Chip Arrays - Signal Filtering | |
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Provides compact, cost effective EMI filtering for densely packed PCB designs. |
Downloads
Click on the downloads below to learn more about the product lines.
Ferrite Board Level EMI suppression Component Literature
EMI Filtering & RF Inductor Solutions Brochure - (06-11)
EMI Filtering & RF Inductors Catalog - (07-11)
Ferrite EMI Noise Filtering Solutions Brochure - (03-11)
EMI Ferrite Chip Bead 0201 Brochure - (12-09)
EMI Part Number Nomenclature Explanation Brochure Download - (06-10)
Application Notes
EMI Part Family Application Chart Brochure Download - (12-07)
EMI Chip Beads for PCB Application Notes Download - (02-08)
Lead Free / RoHS Compliance Application Notes Download - (02-08)
SPICE
Laird Technologies has released a revolutionary new SPICE model for EMI ferrite chip beads. This new, time saving design aid includes the de-rating effects of dc bias currents on small ferrite board level parts. Other existing SPICE models are only capable of predicting performance of ferrite chip beads when they are not under any significant operating load. The new SPICE Model has the capability of predicting (with superior accuracy) the real performance of an EMI chip bead actually in circuit operation.
SPICE Files Download
Quality Certifications
ISO 9001:2008 Certification - Steward
ISO 9001:2008 Certification - Shenzhen
ISO/TS 16949:2009 Certification - Steward
ISO/TS 16949:2009 Certification - Shenzhen
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