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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Active Filter
J2190A
The J2190A active filter presents a high impedance (approximately 150kOhms) minimizing the loading of the circuit being tested. The output impedance is 50 Ohms allowing low noise coaxial connections to all typical test equipment. The 0.1Hz-10Hz noise band is common for opamp measurements, voltage regulators and voltage references. Many application notes offer schematics of such a filter for test purposes. An engineer’s time is much too valuable to be spent building test equipment. We have created a 4th order high pass and 4th order low pass filter with an optimally flat response and 0dB gain. Additional filters can be cascaded for even sharper cutoff.
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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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Low-Noise Filter, 210 V / 3 A
N1298C
The N1298 Series power source accessories are a collection of low noise filters for the Keysight B2960 Series precision source / measure units (SMUs).
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ITA, ICon XL, 2 Module, Extra-Large Backshell, EMI
410123232
The iCon XL offers an extra-large u-shaped cable clamp that can hold cable bundles with an oblong bushing effective diameter of 1.95" and offers a cable bend radius of 1". A slide-off backshell allows easy access to wiring for maintenance and probing. The iCon XL also offers EMI shielding.
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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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SWITCHABLE FILTER BANKS
AFS-12WB
Matrix Test Equipment Incorporated
Models AFS-12WB contain banks of Matrix Model FLT-1 filters. Each filter may be individually selected. The Model AFS-12WB retains the manual operation in addition to remote control through the GPIB IEEE-488 interface. Optional internal Post Amplifier PA-20-20 with a gain of 0, 17 and 32dB @ +5dBm max..
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HandyScope HS6-DIFF With EMI, SureConnect & SafeGround: 1 GS/s, 250MHz BW, 4 Channel (256MS/ch), USB Differential Digital Storage Oscilloscope, Spectrum Analyzer, Voltmeter, Transient Recorder
HS6-DIFF-1000XMEGS-W
The powerful capabilities of the WiFiScope HS6-DIFF-1000XMEGS EMI analyzer give the user the possibility to quickly perform a good EMI compliance test. With this cost effective test, time and money are saved by avoiding extra visits to expensive EMC testing facilities. The supplied EMI probe set TP-EMI-HS6 contains three magnetic field (H field) probes and one electric field (E field) probe. The tripod ensures that the probes can be positioned properly at the object under test.
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EMI Test System
TS9975
The R&S®TS9975 is the base system for conducted and radiated EMI measurements. Due to its modular design, it covers a wide range of applications and can be very easily adapted to the measurement task at hand. Any configuration is possible – from conducted measurements and the small precompliance system with a compact test cell to the accredited test system for large equipment under test. Combinations of different applications or incremental expansion are easily possible.
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32-CH/64-CH Isolated Digital I/O PCI Express Card With Digital Filter
AX92351
The AX92351 is a 64-ch isolated digital I/O PCI Express card with 2,000VDC isolation protection. This high-density digital I/O card with high-speed PCI Express x1 bus is excellent for use in applications requiring digital control or monitoring, such as semiconductor machinery, PC-based industrial machinery, programmable I/O logic control, and process status monitoring. The AX92351 features 32 isolated digital input channels and 32 isolated digital output channels with isolation protection of 2,000V for industrial applications where high-voltage isolation is required. It is equipped with a board ID feature for easy identification of multiple cards in single system. There is a digital filter function to prevent input signals from carrying noise or a chattering. Each isolated input has a sink or source current which supports dry and wet contact for maximum application flexibility. The card has a wide range of input voltage from 10 to 30V to meet most industrial application needs. The AX92351 also provides two interrupt sources on digital input channels. Digital output has open controller and supports maximum 30VDC. The read-back function is another useful function that allows monitoring each output port.
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Receiver, ICon EMI , With Protective Cover And Strain Relief
310123102
Includes all of the standard features of the iCon, in addition to Electro-Magnetic Interference (EMI) protection. An earth ground terminal is included on the and a "mate first, break last" feature connects the earth ground circuit. The earth ground terminal on the strain relief prevents user shock and injury.
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WiFiScope WS6+SureConnect+EMI: 1 GS/s 250MHz BW, 4 Channel, Digital Storage Oscilloscope, Spectrum Analyzer, Voltmeter, Transient Recorder
WS6-1000XMES-W5
TiePie engineering has introduced the WiFiScope series oscilloscopes. The new range WiFi oscilloscopes can be used via an ethernet connection (LAN, WiFi or WAN) but also still with a USB 2.0 / 3.0 connection. The built-in battery gives the WiFiScope the possibility to perform fully wireless measurements. Measurements can then be performed completely galvanically isolated, and over long distances. This wireless PC-based data acquisition instrument offers the user more possibilities for measurement applications.
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Broadcast Filters FM
RFS bandpass filters are primarily used as part of multi-channel combiner facilities but can also be used to eliminate spurious emissions and increase isolation between co-sited services.
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Mid-Range Gas Filter Correlation Carbon Dioxide Analyzer
Model T360M
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.All T Series instruments offer an advanced color display, capacitive touch screen, intuitive user interface, flexible I/O, and built-in data acquisition capability. All instrument set up, control and access to stored data and diagnostic information is available through the front panel, or via RS232, Ethernet, or USB com ports, either locally or by remote connection.The Model T360M comes with NumaView™ Software. NumaView™ Remote PC Software allows for a remote connection with virtual interface and data downloading capability to analyzers operating NumaView™ Software.
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Gas Filter Correlation CO Analyzer
Model N300
Teledyne Advanced Pollution Instrumentation
The Model N300 is a microprocessor-controlled analyzer based on the Beer-Lambert law that is used to determine the concentration of carbon monoxide (CO) in a sample gas.The N300 uses Gas Filter Correlation (GFC) to overcome the interfering effects of various other gases (such as water vapor) that also absorb Infrared (IR) light. The analyzer passes the IR light beam through a spinning wheel made up of two separate chambers: one containing a high concentration of CO known as the reference, and the other containing a neutral gas known as the measure. The concentration of CO in the sample chamber is computed by taking the ratio of the instantaneous measure and reference values and then compensating the ratio for sample temperature and pressure.
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Bandpass Filters
K&L Microwave provides bandpass filters in multiple topologies built to customers' electrical, mechanical, and environmental specifications. The list below contains part numbers meeting existing industry and customer specifications, as well as product families. Use the quote cart to request a quote on a specific design.
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Narrow Band Filters (Single Octave)
NANO-POLE® Series
The NANO-POLE® is designed for optimal size, DC consumption, RF power handling, insertion loss, signal purity and linearity. The NANO-POLE® provides a minimum center frequency step size of 10 MHz typically but can be modified based upon request. The NANO-POLE® requires a +3.0 V supply that typically draws 5 mA when not hopping. The supply voltage should be adequately filtered as noise present on this pin will influence the RF signal purity. The NANO-POLE® uses SPI control interface.
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2- to 8-Channel Anti-Alias Low-Pass Filter and Instrumentation Amplifier Card
AAF-3PCI
The AAF-3PCI is a 2- to 8-channel anti-alias low-pass filter and instrumentation amplifier PCI bus plug-in board for front-end signal conditioning in PC-based data acquisition systems.
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Gas Filter Correlation CO2 Analyzer
Model N360
Teledyne Advanced Pollution Instrumentation
The Model N360 measures carbon dioxide (CO2) by comparing infrared energy absorbed by a sample to that absorbed by a reference according to the Beer-Lambert law.The N360 uses Gas Filter Correlation (GFC) to overcome the interfering effects of various other gases (such as water vapor) that also absorb IR. The analyzer passes the IR beam through a spinning wheel made up of two separate chambers: one containing a high concentration of CO2 known as the reference, and the other containing a neutral gas known as the measure. The concentration of CO2 in the sample chamber is computed by taking the ratio of the instantaneous measure and reference values and then compensating the ratio for sample temperature and pressure. A nitrogen purge system is provided for the GFC wheel assembly to eliminate the effects of ambient CO2, if necessary.
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Filter Testers
All filter test equipment from TSI, used for testing efficiencies of filter media and a variety of air filters, including high and very high-efficiency filters, respiratory filters, cartridges, and protective garments, is known for its simple and reliable operation.
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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.
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PXE EMI Test Receiver, 1 Hz to 44 GHz
N9048B
Keysight's N9048B PXE is a standards-compliant EMI test receiver equipped with an RF pre-selector and LNA designs. Shorten your overall test time and easily perform gapless signal capture and analysis with real-time scan (RTS) capabilities.
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Precision Analog Anti-Alias Low-Pass Filter Board
GSAF-10
The GSAF-10 Gold Series are analog low-pass filter boards that offer the performance required to maintain the maximum accuracy of high-precision 16- and 18-bit A/D converters.
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Wireless Filters
K&L Microwave offers a variety of wireless filters for the communications marketplace, built to customers' electrical, mechanical, and environmental specifications. The list below contains part numbers meeting existing industry and customer specifications. Use the quote cart to request a quote on an existing design or to provide specifications for a custom design.
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3U Louvered Plastic Grille with Filter
GP-319
3U high louvered plastic grille with filter is made of polycarbonate resin.
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Programmable Anti-Alias Low-Pass Filter and Instrumentation Amplifier
USBPGF-S1
Single Channel USB Programmable Anti-Alias Low-Pass Filter and Instrumentation Amplifier for Signal Conditioning in Data Acquisition Systems. Differential or single ended input. 10Vmax Signal Input and Output with input protection up to 40V. Software-programmable instrumentation amplifier gains of 1 to 1000.
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Tunable Notch Filters
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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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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High Frequency Tunable Bandpass Filters
CTB Series
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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Automated Filter Tester
3140-1
The model 3140 filter tester uses the same aerosol generation technology as the model 8130A respiratory filter tester. It works with Emery oil, DOP, DEHS, paraffin and other oils. Two new generation CPCs simultaneously count upstream and downstream particles. This enables accurate, repeatable and fast measurements, for example a HEPA filter can be tested in less than 15 seconds.
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2,000 Watt AC/DC Standalone EMI Compliant Power Supply
56XS1
NAI’s 56XS1 is a conduction-cooled, 2,000 Watt AC/DC Power Supply that converts either 3-phase, AC input or +270 VDC input into a single DC output at 2,000 Watts.
