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Dexter is an authorized distributor of ferrite cores for EMI applications. Our product line includes top manufacturers, such as:
>Fair-Rite Products
>TDK
>EPCOS
>Magnetics, Inc.
>Ferronics
>Acme Electronics
We have the industry’s largest in-stock inventory of:
>Round Cable EMI Suppression Cores
>Split Round Cable EMI Suppression Cores
>Round Cable Snap-its
>Flat Cable EMI Suppression Cores
>Flat Cable Snap-its
>Toroids
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N-X INVERTER OUTPUT FERRITES
General purpose filter
Output Ferrites (N-X) are especially effective in reducing electromagnetic interference from the motor cable, as they introduce an impedance between the Inverter and the motor.
Output ferrites are particularly useful in reducing electrical noise in the frequency range 5 to 20 MHz, as there is no other suitable noise suppression means in this frequency range. Output ferrites should be placed around the cable between the Inverter and Motor, as near as possible to the Inverter.
The cable (excluding earth wires and shielding) should pass through the ferrite at least twice.
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Ferrites
Richco offers a wide variety of ferrite cores to solve all your EMI/RFI problems. Our range extends from solid, split ferrite for round and ribbon cable, to Surface Mount Devices (SMD) Ferrite chips, beads and inductors. The ferrite materials exhibit magnetic properties that are dependent upon the frequency at which they operate. The suppression of EMI has become a major concern in the electronics industry, where it is now common that EMI suppression ferrites are often used as two terminal circuit elements. Richco’s ferrite range is manufactured in a variety of materials to suppress EMI/RFI interference or a wide range of cable diameters and PCB configurations. Richco’s aim is to give you total peace of mind that your application is protected from EMI interference at all times.
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Single-Phase Filters - FTA Small Size IEC Filter
Features:
Small size IEC filter
* With IEC connector, fuse and switch.
* Custom external connections on request.
* Small size.
* M: for electromedical applications.
General specifications
* Maximum operating voltage: 250Vac.
* Operating frequency: DC - 60Hz.
* Hipot test voltage:
- L/N-›PE: 1800Vac 2s.
- L-›N: 1700 Vdc 2s.
* Application class: HPF Acc. TO DIN 40040
* (-25ºC/+85ºC/95% RH, 30d).
* Flammability class: UL 94 V2.
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All the advantages of IEC connector, EMI filter, fuses, switch and voltage selector combined in a powerful compact all-in-one solution. Ideal for computers, monitors and office equipment like printers and copy machines.
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FD/FDC/FDV Series / Single-Phase Filters - IEC Connector Filter
Features:
IEC connector filter
* Multi purpose IEC connector filter.
* FD: IEC connector filter.
* FDC: with earth inductor; high immunity.
* FDV: with voltage protection.
General specifications
* Maximum operating voltage: 250Vac.
* Operating frequency: DC - 60Hz.
* Hipot test voltage:
- L/N-›PE: 1800Vac 2s.
- L-›N: 1700 Vdc 2s.
* Application class: HPF Acc. TO DIN 40040
* (-25ºC/+85ºC/95% RH, 30d).
* Flammability class: UL 94 V2.
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Single-phase-filter FT/FTO with IEC connector
IEC connector filter
* With IEC connector, fuse and switch.
* Wiring, selector and fuse holder available on request.
* Small size.
* M: for electromedical applications.
General specifications
* Maximum operating voltage: 250Vac.
* Operating frequency: DC - 60Hz.
* Hipot test voltage:
- L/N-›PE: 1800Vac 2s.
(M version: 2500Vac)
- L-›N: 1700 Vdc 2s.
* Application class: HPF Acc. TO DIN 40040
* (-25ºC/+85ºC/95% RH, 30d).
* Flammability class: UL 94 V2.
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Spectrum Advanced Specialty Products offers the industry’s most complete line of resin sealed and hermetically sealed miniature and solder-in EMI filters. Built in accordance to MIL-PRF-15733 or MIL-PRF-28861, these highly reliable filters are ideal for a variety of applications in military/aerospace and commercial markets. Available in a wide range of package sizes, mounting options, and circuit configurations, we satisfy global EMC standards while meeting demanding design parameters.
Joining Spectrum’s low pass EMI filter family is the patent pending Motor Line Feed-Through (MLFT) filter. Specifically designed for DC motor and other lower voltage applications, this filter is a one-component solution that eliminates the need for multiple capacitors, inductive coils, leads and PCB assemblies requiring numerous electrical connections and large amounts of space. MLFT filters offer significant insertion loss to pass global conductive and radiated EMC tests, such as CISPR 25.
With over 800 standard QPL products and DSCC part numbers, developing a custom application specific solution to address your mechanical and electrical requirements has never been easier. With both standard and custom filtering and mechanical packages available, Spectrum provides the required EMI filtering and mechanical interface at a reduced cost.
• Resin sealed bolt-in, high current and high voltage filters available
• High temperature construction to prevent reflow during installation
• High voltage ratings
• Reliability testing available for custom specific requirements
• Effective filtering up to 18 GHz
• Competitive cost
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LCR Electronics designs, develops and manufacturers a complete range of Aerospace / Military EMI Filters (RFI Filters, EMC Filters) to help its customers meet MIL-STD-461 (MIL-461), RTCA-DO160 and others EMC requirements. These include standard off-the-shelf EMI filters as well as project-specific, specification driven and build-to-print Military EMI filters and suppression components.
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Single-Phase Filters - FI Chasis Panel with IEC connector Fused (1-10A)
* Features
* Values Chart
* Electrical diagram
* Insertion loss graphs
Features:
IEC connector filter
* With IEC connector and fuse.
* Small size.
* F: with two fuses.
* FM: with two fuses for electromedical applications.
General specifications
* Maximum operating voltage: 250Vac.
* Operating frequency: DC - 60Hz.
* Hipot test voltage:
- L/N-›PE: 1800Vac 2s.
(M version: 2500Vac)
- L-›N: 1700 Vdc 2s.
* Application class: HPF Acc. TO DIN 40040
* (-25ºC/+85ºC/95% RH, 30d).
* Flammability class: UL 94 V2.
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LCR offers a broad range of standard off the shelf Power Entry Filters and Filtered Power Entry Modules. In addition, LCR also offers standard off the shelf Power Line Filters (Power Inlet Filters). All of these EMI filters are available in both general purpose and low leakage current medical versions.
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Single-Phase EMI/EMC Filter
Single-phase filters for chassis or DIN-rail mounting are key for EMC compliance of higher power office equipment and low to medium power industrial applications. A broad selection of electrical and mechanical features allows a specific choice and deployment for countless applications.
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Spectrum’s many years of experience in the design and manufacturing of filters has given us a unique perspective on EMI and its control. Our complete family of surface mount EMI filters includes mini surface mount, square surface mount, PSM power surface mount, and high frequency filters. With a simple structure and high withstanding voltage, our high performance EMI filters have a minimal PCB footprint, making them ideal for a wide range of PCB applications. Available in feed-thru and Pi circuit configurations, our high temperature constructed EMI filters are non-polar and surface mountable with excellent performance characteristics. Applications include automotive electronics, digital AV equipment, high current buss lines, peripherals, telecommunications, and switching power supplies.
• Variety of surface mount EMI filters, including: Three Terminal Chips, SA Series Arrays, MSM Mini-Surface Mount, SSM Square Surface Mount and PSM Power Surface Mount
• Tape and reel or bulk form packaging available
• Pick-n-Place equipment installation
• Available lead-free/RoHS compliant
• Rated voltage between 50 and 200 VDC
• Temperature range between -55°C and +125°C
• Capacitance ranging from 47 pF to .01μF
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PFT Series - Three-Phase + Neutral Line Filters - for General Use
Features:
Characteristics
* Three phase with neutral filter.
* For switching applications.
General specifications
* Maximum operating voltage: 520Vac.
* Operating frequency: DC - 60Hz.
* Hipot test voltage:
- L/N-›PE: 3000Vac 2s.
- L-›N: 1300Vdc 2s.
* - Li-›Lj: 2250Vdc 2s. Application class: HPF Acc. TO DIN 40040
* (-25ºC/+85ºC/95% RH, 30d).
* Flammability class: UL 94 V2.
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three-phase filter with neutral FVTO-IV Series double phase
Features:
General purpose filter
* For frequency converters / PDS.
* Footprint mounting.
* High attenuation.
* Small size.
General specifications
* Maximum operating voltage: 520Vac.
* Operating frequency: DC - 60Hz.
* Hipot test voltage:
- L/N-›PE: 3000Vac 2s.
- L-›N: 1300Vdc 2s.
* - Li-›Lj: 2250Vdc 2s. Application class: HPF Acc. TO DIN 40040
* (-25ºC/+85ºC/95% RH, 30d).
* Flammability class: UL 94 V2.
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Three-phase and neutral line filters are a compact solution for the interference suppression on the mains input of cabinets and control units of equipment, ranging from industrial applications like machine tools to sensitive medical installations. These typically involve separate and often
insufficiently filtered frequency inverters and SMPS, causing current imbalance and significant interference problems. As individual elements they may be interference-suppressed already. The conjunction of several switching components in the same cabinet and a non-EMC conscious cabling will rise the demand for an additional EMC filter on the mains input of the whole installation. Many times this is the only way to get the CE mark for the cabinet in accordance with the EMC directive.
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FVNSB: Three phase + neutral filters for industrial applications
Features:
Three phase one stage filter
* For industrial machinery units.
* Compact size.
* With neutral line.
General specifications
* Maximum operating voltage: 520Vac.
* Operating frequency: DC - 60Hz.
* Hipot test voltage:
- L/N-›PE: 2750Vdc 2s.
- L-›N: 2250Vdc 2s.
* Application class: HPF Acc. TO DIN 40040
* (-25ºC/+85ºC/95% RH, 30d).
* Flammability class: UL 94 V2.
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STF: Three phase + neutral filters for solar technology applications
Features:
Three phase with neutral filters
* Single stage.
* Solar photovoltaic applications.
* Compact model to save space.
* Low leakage current.
General specifications
* Maximum operating voltage: 520Vac.
* Operating frequency: DC - 60Hz.
* Hipot test voltage:
- L/N-›PE: 3000Vdc 2s.
- L-›N: 2250Vdc 2s.
* Application class: HPF Acc. TO DIN 40040
* (-25ºC/+85ºC/95% RH, 30d).
* Flammability class: UL 94 V2.
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FVST 3-Phase for Frequency Converters without Neutral (6-110A)
Features:
Characteristics
* Three stage single phase filter.
* For fast switching applications.
* High current.
* High voltage versions available on request.
General specifications
* Maximum operating voltage: 520Vac.
* Operating frequency: DC - 60Hz.
* Hipot test voltage:
- L/N-›PE: 3000Vac 2s.
- L-›N: 2250Vdc 2s.
* Application class: HPF Acc. TO DIN 40040
* (-25ºC/+85ºC/95% RH, 30d).
* Flammability class: UL 94 V2.
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FVSB Three pase double stage filter
Features:
Three phase double stage filter
* For industrial equipment.
* Small size.
* Easy to install.
General specifications
* Maximum operating voltage: 520Vac.
* Operating frequency: DC - 60Hz.
* Hipot test voltage:
- L/N-›PE: 3000Vac 2s.
- L-›N: 2250 Vdc 2s.
* Application class: HPF Acc. TO DIN 40040
* (-25ºC/+85ºC/95% RH, 30d).
* Flammability class: UL 94 V2.
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HCWMGF Series: Three phase filters for wind mill applications
Features:
Three phase filters
* High power filters for rated currents up to 2500A.
* Attenuation loss for class A compliance.
* Optional protective cover for busbar.
* High voltage for IT networks.
Applications
* High power converters and inverters.
* UPS.
* Renewable energy equipment.
General specifications
* Maximum operating voltage: 720Vac.
* Operating frequency: DC - 60Hz.
* Hipot test voltage:
- L/N-›PE: 3100Vdc 2s.
- L-›N: 3000Vdc 2s.
* Application class: HPF Acc. TO DIN 40040
* (-25ºC/+85ºC/95% RH, 30d).
* Flammability class: UL 94 V2.
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FVDT 3-Phase for Frequency Converters without Neutral (up to 150A)
Features:
Three phase double stage filter
* Double stage three phase filter.
* High performance for frequency converters.
* High current.
* High voltages available on request.
General specifications
* Maximum operating voltage: 520Vac.
* Operating frequency: DC - 60Hz.
* Hipot test voltage:
- L/N-›PE: 3000Vac 2s.
- L-›N: 2250 Vdc 2s.
* Application class: HPF Acc. TO DIN 40040
* (-25ºC/+85ºC/95% RH, 30d).
* Flammability class: UL 94 V2.
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FVDT-D 3-Phase for Frequency Converters without Neutral (6-28A)
Features:
Characteristics
* Three phase double stage filter.
* Low leakage current.
General specifications
* Maximum operating voltage: 520Vac.
* Operating frequency: DC - 60Hz.
* Hipot test voltage:
- L/N-›PE: 3000Vac 2s.
- L-›N: 2250 Vdc 2s.
* Application class: HPF Acc. TO DIN 40040
* (-25ºC/+85ºC/95% RH, 30d).
* Flammability class: UL 94 V2.
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FVDT 3-Phase for Frequency Converters without Neutral (150A-900A)
Features:
Three phase double stage filter
* Double stage ultra compac three phase filter.
* High performance for frequency converters.
General specifications
* Maximum operating voltage: 520Vac.
* Operating frequency: DC - 60Hz.
* Hipot test voltage:
- L/N-›PE: 3000Vac 2s.
- L-›N: 2250 Vdc 2s.
* Application class: HPF Acc. TO DIN 40040
* (-25ºC/+85ºC/95% RH, 30d).
* Flammability class: UL 94 V2.
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EMC filter solutions for industrial applications like motor drives and machine tools. Furthermore, these types of filters are also suitable for mainframe computer systems, large uninterruptible power supplies, medical equipment, wind turbine power stations and a vast array of other threephase power electronics.
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LCR's 3 Phase EMI filters (RFI filters, EMC filters) are typically used in Power Electronic products. These EMI filters attenuate mains-borne EMI generated back into the power line. LCR's 3 phase EMI filters also protect sensitive electronics and make them less susceptible to surges, Electrostatic Discharge (ESD) and other harmful voltage and current surges. Typical applications for these EMI filters (RFI filters, EMC filters) are in three-phase industrial drives, controllers, frequency converters and industrial machine tools.
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EMI filters
