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LCR's Single Phase Industrial EMI filters (RFI filters, EMC filters) attenuate electrical noise generated from industrial, telecommunication, commercial, military and medical electrical and electronic equipment. These EMI filters attenuate mains-borne electromagnetic interference from 100 kHz upwards to very high frequencies.
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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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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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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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Application
Filters are used to suppress circuit-bound interferences in AC power lines.
Interference pulses or interference voltages are dampened independently from their point of origin. To improve the filter effect they are designed with more stages, furthermore these filters have a high insertion loss on a broad frequency range.
Functional principle
The filters are connected between the AC voltage supply and the consumer, which is susceptible to interference. Because of the combination of chokes and film capacitors of the classes “X” and “Y” an effective suppression on a wide frequency range is achieved.
Technical data
Rated voltage (VDC): 24 or 48 VDC
Rated voltage (VDC): 250, 550 or 550/250 VAC
Rated current: up to 20 A
Operating temperature range: -50°C / +85°C
Mounting: on rails acc. to DIN 46277 or wall mounting with screws
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High Performance range of Single Stage EMC Filters, offering comparable performance to many other manufacturers' two stage units. (See case study in EMC Book for more information on this) Available in 3 Amp to 20 Amp ratings.
Designed for use in applications where interference is frequent and intensive, such as switch-mode power supplies and motor drives.
Connection using 6.3 mm Faston spade connections. Unit can be made touch proof to IP20 by using insulated crimps.
Straightforward 2-point mounting used for all current ratings
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EMC PRODUCTS
POWER ENTRY MODULES WITH FILTER:
SCHURTER’sdevices are based on IEC connectors with line filters and meet international safety standards. Available current ratings range from 2.5 Amps to 20 Amps, for screw-in, snap-in, PCB, or sandwich mounting.
SINGLE PHASE LINE FILTERS:
Single phase Block EMI Filters meet international safety standards. Available current ratings range from 0.5 Amps to 36 Amps, for chassis or PCB mounting. 3-Phase Block EMI Filters meet international safety standards,. Available current ratings range from 3 Amps to 115 Amps at 275, 480 and 520 Volts, for chassis mounting.
3-PHASE LINE FILTERS:
3-Phase Block EMI Filters meet international safety standards,. Available current ratings range from 3 Amps to 115 Amps at 275, 480 and 520 Volts, for chassis mounting.
CHOKES:
SCHURTER Suppression Chokes are available as Magnetically Compensated, Linear, Storage, and Linear/Saturating types. Available current ratings range from 0.4 to 50 Amps.
PULSE TRANSFORMERS:
SCHURTER’sPulse Transformers are designed for providing dielectric isolation between drive controller and power output circuits.
DRIVER MODULES:
SCHURTER Power Supply Driver Modules take the effort out of designing high-power motor drive controls. Available with either opto-coupler or pulse transformer isolation.
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Conveniently available in current ratings of 5A, 10A and 20A, these filter modules are designed to reduce the conducted common-mode and differential-mode noise on input or output lines of high-frequency switching power supplies. They provide high insertion loss throughout the frequency range regulated by the US Federal Communications Commission (FCC) and the International Special Committee on Radio Interference (CISPR) for conducted emissions.
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In the area of suppression modules for contactors, valves and motors, we offer the corresponding components to increase EMC throughout the whole installation. We can meet all normal requirements in the field of power supplies with our power supply units, incorporating primary switching technology and control-power transformers.
Interface technology is represented in the Lutze programme by a wide range of different components that can be used to create just about any interface needed in your application.
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EMC/Radio interference suppression
Block EMC filters represent the latest status of operating practice. They reduce any interference emissions to the statutory limit values. Their consistent design enables them to be used in an extremely wide range of applications. High-quality materials, modern production techniques, development work and continuous testing in the company's own EMC laboratory, as well as the experience from many and varied interference-suppression tasks on plant and equipment, including on site, result in filter systems which meet the needs of operating practice.
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Interference suppression up into the GHz range for high-tech applications such as IT, telecom, server and networking equipment.
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MEF EMC-Filter 1-phase 1-stage I:10A U:250 VAC/300 VDC snap on
Single-phase, one-stage, snap-on
Current: 10 A
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Designed to reduce conducted mains borne EMI, this extensive range provides many solutions to EMI problems. To meet individual design requirements the filters are available with two attenuation options – standard and medical. Current ratings are from 1 to 10 amps with single or twin fused types also available.
The choice of mounting options will suit most applications with flange, snap to panel or base/bulkhead.
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Complementing our premium line of EMI filtered and unfiltered connectors, we offer a variety of specialty filtered connectors, and a wide range of value-added harnessing products and services for all your commercial, industrial and military needs. With a complete line of compact and extended shell filter connectors, Spectrum provides vast design flexibility to reduce the amount of real estate required within a product enclosure.
Our unfiltered connectors are built to meet various environmental and mechanical requirements as well as MIL specifications, providing you with a custom shell to fit your space. Power, signal and coax line combinations are available, each built with integral strain relief to ensure a high quality connector.
To meet the highest workmanship standards, our MIL-STD-2000 certified operators and manufacturing engineers work in well-equipped, modern facilities to build and design tooling and fixturing of the tightest tolerance. By providing interconnect assemblies, our custom harnessing products are in compliance with all requirements. Services include lead wire preparation, soldering and tinning, marking and ribbon cable processing.
• Custom configurations of filtered MIL-STD connectors available
• Specialty EMI filtered and unfiltered connectors
• Tubular and planar filtered arrays using Pi, LC, T and C circuits with TVS protection available
• Effective insertion loss from 1MHz to 18GHz with proper installation
• Connector temperature range of -55°C to +125°C
• All harnessing built in accordance with IPC-A-610 and J-Std-001
• Harnessing temperature range of -55°C to +200°C
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EMI/RFI Filtered Connectors
Various - EMI/RFI Filtered ConnectorsFilter Connectors. The concern over interference in sophisticated electronic equipment, now operating on lower power levels, has seen an increased use of in-line filter devices to suppress either the effect of externally generated interference, or to reduce emissions from the equipment itself.
AB Connectors have engineered solutions which can be adapted to may of the market standard connector ranges, making retro-fitting to existing equipment a quick and effective solution, to EMI/RFI problems.
As an alternative AB Connectors produce Interface Filter Adaptors which simply plug in between existing connectors, thereby making modification in the field a simple and cost effective option.
Connector Types
MIL-C-5015
MIL-C-38999
MIL-C-26482 Series 1
Further details on the Various range available on request from the factory.
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A specialized range of I/O connectors equipped with capacitive filter elements enabling engineers to design network and communications equipment to meet FCC and other national standards governing the level of emissions of RFI and EMI energy.
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Eliminates the problem of conducted EMI in data line applications
Provide common- and differential-mode noise attenuation.Reduce noise by a factor of 32 from 15 MHz to 300 MHz.High current (500 mA) versions available.300 Vrms isolation.Excellent environmental stability and low cost Available in 4, 3 and 2 line versions
Consider our CCDLF series for 10 and 8 line applications
RoHS-compliant. 260°C compatible. Tin-silver-copper over tin over nickel over phos bronze terminations.
Samples of all values plus samples of CCDLF and through-hole versions are available in Coilcraft Designer's Kit D303
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Amphenol EMI / EMP Protection connectors offer the versatility of standard connectors with EMI / EMP protection for sensitive circuits. Internal housing of the EMI / EMP devices eliminates costly and bulky exterior discrete protection devices.
Virtually all major MIL-Spec cylindricals can be incorporated with filter devices :
- MIL-DTL-38999 - MIL-DTL-5015
- MIL-C-26482 - MIL-C-27599
- MIL-C-83723 - MIL-C-26500
Amphenol offers filter connectors that include :
- EMP protection using diodes
- EMP protection utilizing metal oxide varistors (MOV’s)
- Filtered plug connectors
- Filtered hermetic connectors
- Programmable filtered connectors with rear removable and rear insertable crimp contacts
- Filter connectors with ESD protection
- Combinations of filtering devices within one connector package
Advantages of Filter Connectors :
- Reduction in overall weight and space with the elimination of external filter circuits
- Reduction of solder junctions
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