EMI Filters
mitigate high-frequency noise. Also known as: RFI Filters
See Also: Filters, Filter / Amplifiers, Low Pass Filters, Programmable Filters
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Power Line EMI Adapters
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How much EMI noise is on your power lines indeed? How to assess the levels of noise and its properties when it is obviously a bad idea to connect your oscilloscope or a spectrum analyzer directly to your power lines?Our EMI interface adapters provide a barrier for high mains voltages but a straight passage for high-frequency signals so that you can connect your sensitive instrument to power lines for analysis and quantification. We offer plug-in and hand-held adapters which can measure both differential ("normal") and common-mode noise.
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RF Filters
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Smiths Interconnect is committed to providing technically advanced, high quality “state-of-the-art” RF Filters, Multiplexers, Switched Filter Banks, and Integrated assemblies, from 100 KHz to 65 GHz. All products are subject to the same rigorous design, manufacturing, and inspection criteria. Regardless of the application, our internal process and procedures help ensure that all products are fully compliant to all specifications. Our R & D activities are constantly evaluating new materials, plating techniques, and manufacturing processes to offer the highest performing components available today.
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Tunable Notch Filters
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The Ranatec Tunable Notch Filters are critical tools for adaptation to stringent new ETSI/3GPP conformance test specifications for mobile device radio properties, that covers all sub-6 mobile bands and channel bandwidths for 2G/3G/4G/5G. Designed for formal conformance testing performed by accredited test houses, as well internal verification by mobile device vendors. A flexible and easy to use test automation platform to support almost any ambition level, tailored to your demands.
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Product
Programmable, 2-Channel Low-Pass Filter Module
AAF-3F
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Programmable, 2-Channel Low-Pass Filter Module. The AAF-3F is designed for use with the AAF-3M and AAF-3PCI filter boards.
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Product
Automatic Batteries with Filters with Thyristors
BATLVFS600
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Lifasa - International Capacitors, SA
LIFASA automatic capacitor banks are used for centralized compensation of power factor in low voltage instalations.
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Product
Narrow Band Filters (Single Octave)
MAXI-POLE® Series
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The MAXI-POLE® Series of tunable filters provides improved passband performance (reduced insertion loss for a given bandwidth) in a slightly larger package. The product line includes several standard designs in various frequencies to support almost any application. Approximate performance is summarized in the Maxi-Pole Series Selection Guide.
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Product
Protective Cover, G20x, ITA, EMI
410113203
Protective Cover
Protective Cover, G20x, ITA, EMI.
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Product
Band Reject (Notch) Filter Components
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precision band-pass and band reject (notch) active filters that provide high performance in a compact 32-pin DIP package, with a broad range of fixed center frequencies (fo) from 1 Hz to 100 kHz. Each filter type features a neartheoretical amplitude/phase response along with lowoutput voltage noise enabling these filters to achievea 10,000:1 or better dynamic signal range.
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Product
1U Louvered Plastic Grille with Filter
GP-119
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1U high louvered plastic grille with filter is made of polycarbonate resin.
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Product
DC Filter Inductors
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Osborne DC filter inductors (aka filter chokes) are commonly used in AC to DC conversion circuits to present an inductive voltage drop to the AC component of rectified current. This inductive voltage drop acts as a filter. Osborne designs filter inductors to components to function effectively (without saturation) in the presence of the DC current. Osborne will work with you to mitigate the impact of ripple frequency in conversion circuits. Every Osborne DC filter choke is designed for high performance with special consideration given to your circuit´s power supply frequency and conversion configuration.
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Product
Capacitor for AC Filtering
PECA4 (900V)
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Lifasa - International Capacitors, SA
These capacitors are especially suitable for applications where high levels of AC voltage are required. The design of this series has been optimized for the manufacture of high performance AC filters for compensation equipment with high pollution such as UPS or wind turbines
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High Frequency Tunable Bandpass Filters
CTB Series
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Tunable Ranges Up To 8 GHz. Bandwidths 1% to 5% of Tuned Center Frequency. Digital Control Offered in Various Inputs, including GPIB (standard), RS-232, RS-422, and USB. Custom Interfaces Available.
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SAW Filters & SAW Oscillators
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Rich heritage in small form factor, high-rel SAW filters and oscillators for today's military and space markets.
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RF Filters
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Raymond RF offers a complete line of RF filters ranging from 0.4A to 600A in both stand-alone and cabinet-mounted configurations for our QuietBoxes and Anechoic Chambers. Both styles of filters can be supplied with NPT pipe nipples and flange nuts for mounting directly on a QuietBox or Anechoic Chamber. Alternately, both styles of filters can be remotely mounted with shielded conduit running between the clean end of the filter and the QuietBox or Anechoic Chamber.
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Product
Capacitor for AC Filtering
PECA4 (690V)
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Lifasa - International Capacitors, SA
These capacitors are especially suitable for applications where high levels of AC voltage are required. The design of this series has been optimized for the manufacture of high performance AC filters for compensation equipment with high pollution such as UPS or wind turbines.
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Switch Filter Banks
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PMI designs, manufactures, and produces high quality state-of-art-art switch filter banks that feature 2 to 32 multichannel configurations, frequency coverage up to 26 GHz, low profile packaging, connector options, and high channel to channel isolation. Select from standard designs or custom Switch Filter Banks can be designed to meet your most demanding electrical, mechanical, and environmental specifications.
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Product
EMP- EMI Solutions
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We have spread our business tentacles and are operating smoothly, through our DELHI NCR branches which are having facilities like Mechanical and Electronic Designs, Manufacturing, Integration and Testing for development and production activities. We have the In-house Environmental and EMI pre-compliance test facilities which guarantee better quality products.It is our pledge to serve the society with more efficient and qualitative output through our open mindedness and creative solutions. We continue with ardent hope that our products will definitely gather more and more momentum with the defence, the private industrial bigwigs and international companies as well. Growing the business tentacles in India, Concept Shapers are embarking upon the drive of expansion of the resources at its disposal. Our resources are our strength, be it human or the space. We firmly believe in the doctrine of ‘Engineering Innovative Concepts to configure a better tomorrow’.
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Band Pass Filters
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High-Pass (HPF series), Low Pass (LPF series) and Band Pass (BPF series) Filters are available, providing desired skirt selectivity and rejection levels with minimum insertion loss in the pass band. The filters are offered in all standard waveguide bands covering 18 to 400 GHz depending on our possibility to fulfil the customers' requirements. Dimensions of filters depends on required specifications. .
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EMI Receiver
Core-6
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The "CORE-6" is a very compact (19", 1 RU), new digital EMI receiver which enables the user to make frequency-sweeps within a few seconds what saves hours of measuring timeduring developments.
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Low-Pass Filters
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Is a filter that passes signals with a frequency lower than a selected cutoff frequency and attenuates signals with frequencies higher than the cutoff frequency. The exact frequency response of the filter depends on the filter design.
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Product
Three-State Kalman Filter Algorithm
A6-1PPS
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The A6-1PPS uses a three-state Kalman filter algorithm to measure and correct the frequency offset of the oscillator with respect to the 1pps input.
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Servo And VFD Filters
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Operation of PWM-driven motors – servo motors and variable frequency drives (VFD) – causes several problems in equipment, including damage to the motor’s bearings due to leakage current causing electrical discharge machining (EDM) and damage to motor’s insulation. PWM motors also are a major source of EMI in equipment. These motor drive systems use pulsed power to drive the motors. As we are aware, the sharp edges of the pulses inevitably include high frequency components which can couple or radiate as noise to other parts of your system and cause unreliability, communication/control problems and EMC compliance issues.
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Product
ITA, G20x, 6.75" Series Adapters, 28 Module, EMI, 2"
410120253
ITA
ITA, G20x, 6.75" Series Adapters, 28 Module, EMI, 2"
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LCL Filters
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LCL Type Harmonic Filter Modules are used to filter out the input current harmonics of the Motor Drives having six-pulse diode/thyristor rectifiers, where harmonic current distortion exceeds the limits defined in standards.
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Band Pass Filters
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*High power handling 200W with a wide range of bands available*Excellent Isolation with Low Intermodulation*High reliability of >500K Hours MTBF and multi-strike lightning protection*Support for 7-16 or 4.3-10 connectors and optional 19 inch rack mount kit*Designed and produced to ISO 9001:2008 certification standards for reliability and quality
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Product
Narrow Band Filters (Single Octave)
POWER-POLE® Series
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The POWER-POLE® Series of tunable filters provides improved RF performance with increased power handling capability and the lowest insertion loss for a given bandwidth. The product line includes several standard designs in various frequencies to support almost any application. Approximate performance is summarized in the POWER-POLE Series Selection Guide.
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Product
HVDC Power Filter Characteristic Test Set
FT3000
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FT3000 Power Filter Characteristic Testing equipment has the functions of automatic sweep harmonic signal output, A-F and P-F characteristic measurement/display etc. It can perform HVDC Power Filter Testing and is mainly used in AC filter of DC convertor station, DC filter tuning characteristics test and parameter test of R, L and C. It is also used in electrified railway HV filter, passive power filter client and conventional AC substation reactive compensation device.
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Bandwidth-Tunable Filters
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Through cascading a low-pass tunable edge filter with a long-pass tunable edge filter, one can achieve a new type of bandwidth-tunable filter whose passband width is variable while its center wavelength is still tunable. With such a device, you can
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Mid-Range Gas Filter Correlation CO Analyzer
Model T300M
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Teledyne Advanced Pollution Instrumentation
The Model T300M CO analyzer measures low to mid ranges of carbon monoxide by comparing infrared energy absorbed by a sample to that absorbed by a reference gas according to the Beer-Lambert law. Using a Gas Filter Correlation Wheel, a high-energy IR light source is alternately passed through a CO filled chamber and a chamber with no CO present. The light path then travels through the sample cell, which has a folded path of 2.56 meters.
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Inclined Manometer Air Filter Gages
250-AF
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Dwyer Durablock Series 250-AF Gages are precision machined 1" thick solid acrylic plastic, virtually unbreakable and free of distortion. The fluid bore is precision drilled to .0002" to assure life long accuracy.





























