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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Ground EMI Filters
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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AC Power Line EMI Filters
CleanSweep®
CleanSweep® filters block EMI on power lines (both common and differential modes) and, uniquely, in ground, from reaching sensitive equipment. They also reduce EMI "backflow" from a "noisy" source that otherwise would end up on your AC power network.
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Auxiliary Device
Mornsun Guangzhou Science & Technology
MORNSUN provides high quality EMC auxiliary devices: EMC filter, surge suppressor, pulse suppressor, EMI filter, etc.
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EMI Filter/TVS Arrays
ProTek offers TVS protection and EMI Filtering all in one package. These space saving devices are ideal for use in portable electronics such as Cellular Phones, Cellular Phone Accessories, Laptops, and PDAs.
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Telephone Attenuators & RFI Filters
Despite the growth in digital and fiber systems, many telephone companies still require basic line treatment products. Wilcom's hard-to-find line treatment products help the telecommunications industry deliver the performance the customer expects. Products include line powered amplifiers and RFI filters.
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PCI Bus Analog Output Board, 4 Isolated Outputs, 14 Bit
APCI-3501-4
4 analog output channels Optical isolation 500 V Settling time 30 µs typ. 14-bit resolution (13 bit for 0-10 V) Output voltage: ±10 V, 0-10 V (switchable through software) Output voltage after reset: 0 V Each output channel has its own ground line (without optical isolation from the others) Driver capacity: 5 mA/500 pF Short-circuit protection, EMI filters Noise neutralization of the PC supply Creeping distance: 3.2 mm acc. to DIN VDE 0411-100 Watchdog for resetting the analog output channels (4 different time units: µs, ms, s, min) or as 12-bit timer (with interrupt possibility), when the watchdog function is not necessary2 digital input channels, 24 V, isolated 2 digital output channels, 24 V, isolated Noise immunity Test level: ESD: 4 kV Fields: 10 V/m Burst: 4 kV Cond. radio interferences: 10 V
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Rugged Power Supplies For Harsh Environments
NAI designs and manufactures a full line of Commercial Off-the-Shelf (COTS), Modified COTS and Custom Power Supplies - including configurations that meet VME, cPCI and VPX (VITA 62) requirements. All comply with environmental standards designed for harsh environments, including MIL-STD-810G, VITA 47 and MIL-STD-901. NAI’s rugged power supplies also have integrated EMI filters per MIL-STD-461 standards.
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EMI/EMP Connectors
Filter connector series includes EMI/ EMP/ESD circular, ARINC, D-subminiature and micro-D connector styles. They can be combined with high energy TVS diode technology to achieve lightning and EMP transient protection. Smiths Interconnect's EMI filter connectors use multi-layer ceramic capacitor arrays together with inductive materials to realize robust, high performance low pass filter networks. Where required, transient protection can be combined with EMI /RFI filtering to provide maximum protection. The diodes as well as the EMI filter are packaged separately so the construction of the connector remains modular.
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Bench Power Supplies
Series ABC
Kepco¹s ABC bench power supply embodies the latest features: keyboard data entry, interactive digital display, integral GPIB support, software calibration, high frequency switch mode conversion, wide range input (85-264V a-c) and power factor correction. It meets the EN 61000-3-2 harmonic limits. A built-in EN 55022 Class B input EMI filter is provided. Integral External Trigger and RS 232 ports are now standard features.
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2U Family of Programmable AC-DC Switching Power Supplies to 1400W
The 2U family of programmable AC-DC power supplies sets a new standard for flexible and reliable power for your application. Available in a Rack Mounting or Benchtop at 1400W power levels with single output voltages ranging from 10 to 270V and current capabilities up to 120A. A user-friendly front panel provides reliable linear controls for finer adjustment and digital LED voltage and current meters. Standard features include; 'soft start' operation and 'no load' operation, thermostatically speed controlled fans to limit acoustic noise, short circuit and overload protection, thermal protection, internal EMI filtering, RFI shielding and remote sensing.
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Resistors
Panasonic Industrial Devices Sales Company of America
Panasonic offers a broad line of Resistors that include Chip Resistors, Power, High Power, Fuse, EMI Filters, and Arrays and Networks for all applications.Panasonic Resistors have a wide range of features and specifications including conventional Thick Film Chip Resistors or specialized types like Anti-Sulfur, 0201 to 0805 case sized Chip Resistor Arrays, three different types of Power Resistors, Surface Mount and Leaded EMI Filters and one of the smallest Chip Fuses in the industry.
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High Voltage Op Amplifiers ≥12V
High supply voltage op amps are used in systems that demand the widest dynamic range with the best signal-to-noise ratio. Engineers turn to Analog Devices for high voltage amplifiers that deliver industry-leading performance. Increasingly, new high voltage amplifiers also offer features to improve system performance, cost, and robustness while easing the complexity of system design. New features include integrated input overvoltage protection (OVP), on-chip electromagnetic interference (EMI) filtering, higher electrostatic discharge (ESD) immunity, and greater resistance to latch-up in both powered and unpowered operations.
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PCI Bus Analog Output Board, 8 Isolated Outputs, 14 Bit
APCI-3501-8
*8 analog output channels*Optical isolation 500 V*Settling time 30 µs typ.*14-bit resolution (13 bit for 0-10 V)*Output voltage: ±10 V, 0-10 V (switchable through software)*Output voltage after reset: 0 V*Each output channel has its own ground line (without optical isolation from the others)*Driver capacity: 5 mA/500 pF*Short-circuit protection, EMI filters*Noise neutralization of the PC supply*Creeping distance: 3.2 mm acc. to DIN VDE 0411-100*Watchdog for resetting the analog output channels (4 different time units: µs, ms, s, min) or as 12-bit timer (with interrupt possibility), when the watchdog function is not necessary*2 digital input channels, 24 V, isolated*2 digital output channels, 24 V, isolated
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EMI/EMC Filters And EMI Solutions
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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LED Power Supply
Shanghai Yiya Electronic Instrument Co., Ltd.
1. High efficiency, low temp. movement（＜18℃ in full load, superior stability. 2. Power supplies can be used in dry,damp and wet locations. 3. Built-in EMI filter & low ripple, reduce LED attenuation & increase life span. 4. Aluminum mental housing, easy for heat dissipation & ensure stability. 5. Automatic protection for over voltage, over current 6. 8-hour full load aging test, strict QC before delivery. 7. IP66/67 waterproof rating, suitable for outdoor & indoor application.
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Power Supplies
CF-400B
The CF-series power supply is built with high-quality components for extra long life and maximum system performance along with heavy duty transformers supporting high-end systems. This fanless power supply has a built-in EMI filter for a true no-noise design. The aluminum chassis is built for maximum heat relief to keep the system cool. Combined with a great ventilated structure, you’ll never need a fan. This is a true silent structure that powers your system at 480 watts efficiency.
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3.6 GS/sec Ultra Wideband RF/IF Extreme 1/2 ATR Recorder
Talon RTX 2589
- Rugged 1/2 ATR MIL-spec chassis- Designed for harsh mechanical and thermal environments- Environmentally sealed- Internally conduction-cooled- Fully sealed for RF emissions with EMI power line filter- MIL-STD circular connectors- Compact and lightweight design - 22 lb (10kg)- Ideal for UAVs, military vehicles, aircraft pods and outdoor environments- Capable of recording RF/IF frequencies to 2.8 GHz- Ultra Wideband recording with 3.6 GHz 12-bit A/D- Selectable 1.8 GHz dual channel mode- Up to 61 TB of solid state storage in removable QuickPac- Sustained real-time record rates up to 4 GB/s- 12 to 28 VDC power supply- Optional GPS receiver for precise time and position stamping- SystemFlow API, GUI and Signal Viewer analysis tools- Optional telnet remote connection to recorder
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200 MS/sec RF/IF Extreme 1/2 ATR Recorder
Talon RTX 2586
- Rugged 1/2 ATR MIL-spec chassis for harsh mechanical and thermal environments- Environmentally sealed- Internally conduction-cooled- Fully sealed for RF emissions with EMI power line filter- MIL-STD circular connectors- Compact and lightweight design - 18 lb (8 kg)- QuickPac® drive packs allow quick removal of all data storage up to 61 TB via the front panel- Ideal for UAVs, military vehicles, aircraft pods and outdoor environments- RF/IF recording with phase coherent 200 MHz 16-bit A/Ds and DDCs- Sustained real-time record rates up to 4 GB/s- 12 to 28 VDC power supply- Optional GPS receiver for precise time and position stamping- SystemFlow GUI, API and Signal Viewer analysis tools- Optional telnet remote connection to recorder
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AC-DC Wide Adjust Output Power Supplies
*Universal input.*Power Factor Correction.*Output Inhibit*Constant voltage and constant current modes.*Voltage and current monitor terminals.*Voltage and current programming capabilities.*Short circuit and overload protection.*Thermal protection.*Low Profile.*No minimum load required.*Adjustable down to 0 volts (‘Wide Adjust’ models).*Internal EMI Filter and RFI Shielding.*Pluggable connectors for input and control wiring.*Remote Sensing.*‘Vout OK’ signal monitor.*‘Soft start’ operation.
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16-bit, 100KHz, 16SE/8DIFF A/D Inputs; 4 14-bit, 30KHz D/A Outputs, 4 24V Digital I/O, All Isolated
APCI-3120-16-4
*Optical isolation 500 V*16 SE or 8 diff. inputs*Data transfer rate: 100 kHz*16-bit resolution*4 analog output channels*Data transfer rate:30 kHz*14-bit resolution*Output voltage: 0-10 V, ±10 V, (set through software)*Each output has its own ground line*Driver capacity: 5 mA/500 pF*Short-circuit protection: EMI filters*Data exchange through 16-bit I/O digital*4 digital inputs*and 4 digital outputs, 24 V , opto-isolated
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EMI Filters And Application-Specific Integrated Products (ASIP)
An electromagnetic interference (EMI) filter is used in electronic circuits to improve system immunity against unwanted external electromagnetic signals from neighboring circuits and to avoid emitting radiation (“noise”) that may disturb the same nearby circuits by canceling unwanted frequencies.
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LCR Meter, 1 MHz to 300 M/500 M/1 G/3 GHz
E4982A
The E4982A LCR Meter provides the best performance for the passive component manufacturing such as SMD inductors and EMI filters, where impedance testing at high frequencies (1 MHz to 300 M/500 M/1 G/3 GHz) is required. Not only for the manufacturing, the E4982A can also be utilized for R&D, quality assurance with the powerful functions such as list measurements.
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Power Supplies
CF-480B
The CF-series power supply is built with high-quality components for extra long life and maximum system performance along with heavy duty transformers supporting high-end systems. This fanless power supply has a built-in EMI filter for a true no-noise design. The aluminum chassis is built for maximum heat relief to keep the system cool. Combined with a great ventilated structure, you’ll never need a fan. This is a true silent structure that powers your system at 480 watts efficiency.
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Noise Suppression Products / EMI Suppression Filters / TVS Diodes (ESD Protection Devices)
Murata noise suppression products include compact EMI suppression filters that efficiently eliminate noise, L Cancel Transformers (LCTs) that greatly suppress noise in high-frequency bands by reducing the ESL generated inside capacitors and in boards, and TVS Diodes that guard semiconductor devices against electrostatic discharge from external sources. Murata supplies products that support a variety of approaches to suppressing noise.
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8-Channel 250 MS/sec RF/IF Extreme 1/2 ATR Recorder
Talon RTX 2590
- Rugged 1/2 ATR MIL-spec chassis- Designed to MIL-STD-810 for harsh mechanical and thermal environments- Environmentally sealed- Internally conduction-cooled- Designed to MIL-STD-461 for radiated and conducted RF- EMI power line filter- Compact and lightweight design - 22 lb (10kg)- Ideal for UAVs, military vehicles, aircraft pods and outdoor environments- RF/IF recording with eight phase coherent 250 MHz 16-bit A/Ds- Sustained real-time record rates up to 4 GB/s- QuickPac drive packs add a valuable convenience to the 1/2 ATR recorder with up to 61 TB data storage- 12 to 28 VDC power supply- Optional GPS receiver for precise time and position stamping- SystemFlow API, GUI and Signal Viewer analysis tools- Optional telnet remote connection to recorder
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Linear Regulated Power Supplies (to 150 watts)
Gold Box "Infinity"
*Highly Configurable, with a seemingly Infinite number of Options*Any slot voltage from 1.5v to 150v is available*Remote Sensing*Open Sense protection*Isolated output*Short circuit and overload protection with enhanced surge capabilities*No minimum load required*Internal EMI Filtering*Pluggable connectors*Can be mounted on two surfaces in any orientation
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Power Supplies
CF - SERIES
The CF-series power supply is built with high-quality components for extra long life and maximum system performance along with heavy duty transformers supporting high-end systems. This fanless power supply has a built-in EMI filter for a true no-noise design. The aluminum chassis is built for maximum heat relief to keep the system cool. Combined with a great ventilated structure, you’ll never need a fan. This is a true silent structure that powers your system at 480 watts efficiency.
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Filters
In order to minimize filter roll-off, we start with a quality, highly polished substrate and apply layers of metallization within tight tolerances. Our highly anisotropic ion beam etching process enables us to produce features down to 10 microns. Furthermore, the milling process yields a high consistency from circuit to circuit meaning that whether we produce 1 or 100,000 filters, each one will have consistent filter roll-off characteristics.
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EMI Receiver
Core-6
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.
