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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Individual Optical Filters
Our comprehensive line of Semrock optical filters helps your design attain the best signal-to-noise ratios. Steep spectral edges maximize useable bandwidth, and high transmission or reflection captures the brightest images with best-in-class Flatness. Deep and extended blocking are optimized for your application, minimizing background and crosstalk while reducing cost. Select from the extensive catalog or go with a custom filter to your exact specifications, and remain confident of uncompromising quality, reliability, and reproducible results.
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Switch Filter Banks
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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R.F. Coupler and high Pass Filter
7415-3
There are those who disagree with the r.f. conducted susceptibility test setup of Method CS02 of MIL-STD-462. Homemade rigs have sprouted to comply with the coupling capacitor requirement, each with it own disadvantage. Our little Type 7415-3 R.F. Coupler is the answer. A neat little box with BNC connectors and a pair of binding posts, it is rated at 270 V.A.C. at the LINE terminals and 20 volts PMS into the GEN port. Looks good and does a fine job.
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Capacitor for AC Filtering
PECA4 (900V)
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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EMI EMC test Solutions for Immunity
Scientific Mes-Technik Private Ltd
EMI EMC test Solutions for Immunity
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ITA, i2 MX, EMI, High Speed, XL Backshell (XL Bend Radius and Cable Exit)
410130133
This model i2 MX includes VTAC high speed rail inserts making it compatible with VPC wired SIM ITA inserts. The XL-size backshell allows for a greater cable bend radius and large cable exit which accommodates larger, high speed cables. The max cable bundle eff diameter= 1.67".
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Low-PIM, Low-Power Filter Solutions for Monitoring Broadband Emissions
Bandpass/Bandstop, Notch, and HighpassCompact Design for Rack Mounting of Several BandsSuitable for Monitoring Emissions from Semiconductors,TX/RX Chipsets, SAW/BAW Filters, Cell Phones,Printers, PDA’s, etc.
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2 to 8 Channel Anti-Alias Low-Pass Filter Card
AAF-1
The AAF-1 is a multi-channel anti-alias low-pass filter board designed for front-end signal conditioning in PC-based or stand-alone 12-bit A/D conversion systems.
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ITA, i2 MX, EMI, w/ 2 Hybrid Module Inserts, XL Backshell (XL Bend Radius and Cable Exit)
410130132
This model i2 MX includes 2 Hybrid Module inserts. Each module insert includes 8 Mini Power/Coax and 8 TriPaddle positions. The XL-sized backshell allows for a greater cable bend radius and large cable exit which accommodates larger, high speed cables or a high volume of twisted pair combinations. The max cable bundle eff diameter= 1.67".
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Lowpass Filters
Frequency range of this lowpass filter is DC to 100 MHz and the passband is 100 MHz. PE8719 lowpass filter is one of over 40,000 RF, microwave and millimeter wave components supplied by Pasternack. Our 5 section low pass filter can be bought and shipped worldwide the same-day as with our other in-stock RF parts.
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LV Iron Core Harmonic Filters
Nonlinear loads such as power electronics based equipment and electric furnaces are sources of harmonic currents leading to harmonic distortion, which is one of the most important parameters for defining the power quality. Most of the commercial loads such as personal computers, photocopy machines, power supplies, and compact fluorescent lamps; and industrial loads such as AC and DC motor drives inject harmonic currents into the network that they are connected to.
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Automatic Batteries with Filters with Thyristors
BATLVFS1200
Lifasa - International Capacitors, SA
LIFASA automatic capacitor banks are used for centralized compensation of power factor in low voltage instalations
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Mid-Range Gas Filter Correlation CO2 Analyzer
Model T360M
Teledyne Advanced Pollution Instrumentation
The Model T360M CO2 analyzer measures Carbon Dioxide 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 CO2 filled chamber and a chamber with no CO2 present. The light path then travels through the sample cell, which has a folded path of 1.28 meters.The energy loss through the sample cell is compared with the reference signal provided by the filter wheel to produce a signal proportional to concentration, with little effect from interfering gases within the sample. This design produces excellent zero and span stability and high signal to noise ratio, allowing excellent performance over a wide concentration range, making this instrument an ideal choice for CO2 reporting requirements associated with dilution CEMS.
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Light Measurement Optical Filters
International Light Technologies
Optical filters are often used to attenuate certain wavelengths of light and produce an overall desired detector response.
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High-Current, Ultra-Low Noise Filter, 21 V / 500 MA, 10 Ω
N1298A
The N1298A Series is a collection of low noise filters for the Keysight B2960 Series 6.5-digit low noise source.
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LabVIEW Tools for Digital Filter Design and Implementation
LabVIEW Digital Filter Design Toolkit
The LabVIEW Digital Filter Design Toolkit extends LabVIEW with functions and interactive tools for the design, analysis, and implementation of digital filters. New digital filter users can explore classical designs with the built-in interactive design tools, while experienced users can find a breadth of algorithms, filter topologies, and analysis tools for both fixed- and floating-point digital filters. For fixed-point filters, you can model quantization effects, optimize numeric representation/topology, and deploy the design on a digital signal processor or FPGA using automatically generated ANSI C or LabVIEW FPGA code.
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Automated Filter Tester
3160
Automated Filter Tester 3160 is the most advanced automated tester available for challenging filters and filter media with submicrometeraerosols. It can be used to test both low- and high-efficiency filters and filter media, up to 99.999999% efficient (eight 9’s),or penetrations down to 0.000001%. The 3160 uses a bank of atomizers and the TSI Electrostatic Classifier to challenge a filter or filter media with known-size, monodisperse particles.
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Protective Cover, G40X, ITA, EMI
410114524
Protective Cover 410114144 has been obsoleted in favor of 410114524 with EMI shielding.
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Filters / Splitters / Detectors
DiCon’s 100 GHz WDM is designed to multiplex and demultiplex signals in multi-wavelength systems based on the ITU 100 GHz grid. The component uses a thin film filter mounted between a pair of GRIN lens collimators. The 100 GHz WDM is housed in a compact, environmentally stable package that offers superior resistance to humidity and temperature and is suitable for mounting on a printed circuit board or within a module.
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EMI Test Receiver
ESW
With its outstanding RF characteristics, high dynamic range and measurement accuracy, the R&S®ESW is the best choice for fast and reliable certification measurements. It meets the most stringent requirements in line with CISPR, EN, MIL‑STD-461, DO‑160 and FCC. The R&S®ESW captures and weights disturbance spectra very fast with its FFT based time domain scan. The real-time spectrum analysis with spectrogram function permits detailed analysis of even the shortest disturbance signals. MultiView mode delivers a simultaneous display of results from multiple operating modes for best instrument usability.
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ITA, i2 MX, EMI Backshell, with Cable Exit (Shell only, does not include front protective cover or modules)
410130114
ITA, i2 MX, EMI Backshell, with Cable Exit (Shell only, does not include front protective cover or modules)
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Bandpass Filters
These bandpass filters utilize a suspended stripline design to obtain a very compact configuration. Applications include wideband receiver input preselection and output filtering of frequency multiplied RF power sources.
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Single Channel USB Programmable High-Pass Filter
USBPHP-S1
The USBPHP-S1 stand alone USB controllable module provides a single channel of high pass filtering and high-quality instrumentation amplifier for front-end signal conditioning compatible with all popular A/D converter devices. The USBPHP-S1 is powered with 9 to 12VDC so it can be connected to a battery voltage source or the supplied 115-220VAC adapter may be used for operation with wall power anywhere in the world. When programmed from the USB port, the USBPHP-S1 will remember all of the programmed properties between power cycles. Program once and operate as a stand- alone signal conditioner without having to reprogram for every use. This is perfect for turn-key applications. It's easy to connect the USBPHP-S1 into the data collection system. Input and output signals can be routed through BNC connection or using the detachable screw terminal connectors. Optional SMA type adapters are also available.
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Air Filter Element Filtration Performance Tester
DRK9007AG
Shandong Drick Instruments Co., Ltd.
It is used to test the dynamic adsorption performance of automobile air-conditioning filters that can reduce the concentration of harmful gases and odors from the external environment or internal circulation.
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Filters, Collectors, Separators, Purifiers
Parker's filters, separators and purifiers come in a variety of options and media and are used to filter out air or fluid contaminants in an array of industrial and commercial applications.
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EMI Amplifiers
Overvoltage protection,shuts off above 29VOver-temperature protection,shut off above +100°CExcellent IP3 Class A amplifierVSWR Short and Open circuit protection
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Rack Module with Standard Contactors with Anti-Harmonic Filters
MODF Rack
Lifasa - International Capacitors, SA
The MODF-RACK control units include, in a compact form, all the components necessary for the operation of a step of a capacitor bank with filters. MODF-RACK modules are divided into two basic blocks: power block and control block. The two blocks are mounted in a small frame to be installed in an electrical panel.
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MXE EMI Test Receiver, 3 Hz to 44 GHz
N9038B
The Keysight N9038B is a standards-compliant MXE EMI test receiver and diagnostic signal analyzer built on an upgradeable platform. You choose the frequency coverage you need to fully test devices with outstanding accuracy and sensitivity across required ranges.
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Narrow Band Filters (Single Octave)
MINI-POLE® Series
The MINI-POLE® Series of tunable filters is optimized for size, RF power handling, low distortion, and exceptional selectivity. The product line includes several standard designs in various bands to support a myriad of applications. Approximate performance is summarized in the MINI-POLE Series Selection Guide.





























