Low Pass Filters
Refine signal, allowing the transmission of signal below a specific corner frequency, while attenuating the frequencies above.
See Also: Filters, Filter / Amplifiers, EMI Filters, Programmable Filters
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Product
Automatic Batteries with Filters with Thyristors
BATLVFS800
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Lifasa - International Capacitors, SA
LIFASA automatic capacitor banks are used for centralized compensation of powerfactor in low voltage instalations.
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Product
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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Product
Low Pressure Transmitters
HD404T / HD404ST Series
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Very low pressure relative or differential pressure, Low range 50 Pa, 4-20 mA or 0-10 Vdc
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Product
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
Low Noise Amplifier
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The COMM-connect Low Noise Amplifier can be used to amplify signals in a wide range of bands. The amplifier comes equipped with a SMA connectors, for easy installation. Mechanical mounting is made easy by mounting flaps protruding the casing.
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Product
Low Noise Amplifiers
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Analog Devices RF amplifiers are designed utilizing the company’s leading amplifier and RF IC expertise. Our extensive family of single-ended input/output, fixed-gain amplifiers can be used from dc to microwave and include low noise amplifiers, gain blocks, intermediate frequency amplifiers, driver amplifiers, and differential amplifiers. These devices offer high linearity, low noise figures, and various fixed-gain options, as well as low power consumption; they are all fully specified over frequency, temperature, and supply voltage for use in a variety of applications.
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Product
Wide Band Filters (multi-octave)
HF-ERF™ Series
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The HF-ERF™ is an internally switched 3‑band, low cost, miniature, high performance tunable filter. The HF-ERF™ was designed to have the best insertion loss and Q in the smallest package possible, 2.0” x 2.78” x 0.6”. All HF-ERF™ filters are fully tested and aligned by Pole/Zero for convenience and ease of use. Both SPI and Parallel control interfaces are available in one filter. Modified variants are available upon request.
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Product
Low Cost Emulator
EB-51X2
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* Emulates 8051 Derivatives with 6/12 Clocks/Cycle * 64K Code And 64K Data Memory * Memory With Mapping Capabilities * Real-Time Trace * Frequency Range up to 40MHz * Source-Level Debugger For C And Assembler * MS-Windows Debugger Software * Performance Analyzer * Emulation Header and Signal Testpoints * Serially Linked to IBM PC at 115Kbaud
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Real Time Digital Filters
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Real Time Digital Filters can be used to filter a measured signal in real time. Filter characteristics can be defined by the user to meet the requirements of a specific application. Real-time digital filters are applied in the data conditioning phase. The filters are designed with a graphic design tool and then uploaded to the front-end for real-time calculation. The graphic design tool defines the filter performance vertical axis with a dB scale. The horizontal axis is defined as relative frequency.
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Product
Low Noise Amplifiers
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Chengdu KeyLink Microwave Technology Co., Ltd.
KeyLink's low noise amplifiers typically exhibit noise figures below 5.5dB and output 1dB compression points up 8dBm. These amplifiers are economical choices for general purpose applications. KeyLink's low noise amplifiers can be categorized as follows.
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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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Product
Low Noise Amplifier
LNA
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Teledyne Defence & Space (TDS) Low Noise Amplfiers (LNA) are designed to amplify very low power signals without degrading the signal-to-noise ratio.An amplifiers is designed to increase the power of both the signal and the noise however the Low Noise Amplifier is specifically designed to minimise the additional noise so important information should not be lost.
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Product
Wireless Filters
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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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Product
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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Product
Optical Filter Sets
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Our filter sets support a great range of fluorophores for microscopes and imaging systems. Patented design techniques drive some of the most spectrally sophisticated optical filters on the market. High transmission, steep edges, precise spectral edge placement, and optimized blocking combine for more reliable measurements. A wide selection of individual bandpass filters and dichroic beam-splitters support unique applications, and world-class manufacturing and cutting-edge metrology ensure consistent performance that always meets specifications.
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RF Filters - Notch
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A specialized band-reject filter that blocks or significantly weakens a very narrow range of unwanted frequencies (the "notch") while letting all other desired frequencies pass through relatively unchanged.
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Product
EMI/EMC Filters And EMI Solutions
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Chengdu Mengsheng Electronics Co., Ltd.
DOREXS is a company specializing in the manufacture of EMI/EMC filters. For more than a decade, it has been committed to providing cost-effective EMI/EMC filters and EMI solutions for commercial, medical, military and industrial applications. We help your equipment gain recognition for its stable and reliable functions.
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Product
Power Pass Hybrid Amplifier
AS 1313
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- HIGH OUTPUT LEVEL- EXTERNAL PP SWITCH- LED FOR PP SELECTION- SEPARATE IN/OUT FUSES- HYBRID IC PROTECTED- DOUBLE OUTPUT 900 MHz
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Narrow Band Filters (Single Octave)
MINI-POLE® Series
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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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Product
Tunable Filter Spectrometers
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MKS Instruments' platform of innovative optical analyzers based on Tunable Filter Spectroscopy (TFS™) provides real-time gas analysis, while delivering customers a substantially lower total cost of ownership. TFS™ can be utilized from UV (Ultra-Violet) through IR (Infra-Red) spectral regions. MKS TFS™ sensor platforms have been on the market since 2008 with more than 2500 systems deployed.
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Product
Tunable Optical Filters
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DiCon's MEMS tunable optical filter offers many advantages over a traditional tunable optical filter; increased accuracy & resolution, a faster tuning speed, as well as a durability that will last for over a billion tuning cycles, all in a compact package. Options are available for either 100 GHz or 50 GHz channel spacing as well as operation in either the O-band, C-band or L-band wavelength ranges.
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Ultra Low Noise Preamp
J2180A
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The J2180A low noise preamplifier provides a fixed, AC coupled 20dB gain while converting a 1 MOhm input impedance to a 50 Ohm output impedance. With a 3dB bandwidth of 0.1Hz to 100MHz, the preamplifier improves the sensitivity of oscilloscopes, network analyzers and spectrum analyzers while reducing the effective noise floor and spurious response. The preamplifier can also serve as a low frequency DC blocker for a spectrum analyzer or you can use it to connect a high input impedance oscilloscope probe to 50 Ohm equipment.
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Optical Probes - Low Bandwidth
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Depend on Tektronix to provide you with performance you can count on, and industry-leading service and support.*Broad Wavelength Response 500 to 950 nm or 1100 to 1700 nm*High-bandwidth DC up to 1.2 GHz*High Gain 1 V/mW*Low Noise <11 pW/√Hz*Probe Connects to DPO7000*1 and DPO/DSA/MSO70000*2Series*SONET/SDH and Fibre Channel Reference Receiver Performance
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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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Bandpass Filters
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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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RF & Microwave Filters
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High performance filter solutions for defense, wireless telecom and space applications with an expertise in the integration of multiple and mixed topologies in a single unit that optimize system performance.
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Filters and Multiplexers
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CAES offers an extensive line of RF filters and multiplexers designed and manufactured using our internal capabilities in machining and component and substrate fabrication.These heritage processes have proven flight pedigree in space, on board Gen 5 aircraft and shipboard platforms. CAES' proprietary plating processes enables industry leading high-Q, low l
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Ground EMI Filters
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High-frequency signals on ground is never good news - it interferes with normal operation of equipment and creates electrical overstress (EOS). However it is easy to block propagation of EMI on ground by installing highly-effective ground EMI filtes in ground lines. Our unique patent-pending ground EMI filters provide very low impedance for DC and mains' power while effectively blocking propagation of high-frequency currents throughout facility or equipment ground. Ground filters meet safety standards, as well as ANSI/ESD S6.1 and ANSI/ESD S20.20.
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Product
Broadcast Filters VHF TV
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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.





























