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Attenuator Modules
• Range of High Voltage Amplifiers and Attenuators and a High Frequency Attenuator
• Attenuate High Voltage Signals
• Generate 60V Peak to Peak Output Signals
• Multiple Channels on a Single Module
• Occupy Single 3U PXI Slot
• VISA and Kernel Support For PXI Environments
• Complies with PXI and CompactPCI Specifications
The 41 -181 is an accurate DC to 2.3GHz programmable attenuator that has a 1dB step resolution, allowing it to adjust signal amplitudes for optimum measurement by other devices.
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Crystal quartz (SiO2) is a very useful material for fabrication of finished optics: laser beamsplitters, AO elements, polarizing optics, prisms, windows, lenses in the ultraviolet because of its high UV, VIS and NIR transmittance, birefringence, ability to rotate plane polarized light, high damage threshold and resistance to scratching. The optical grade material is featured by the highest possible transmittance throughout the range of 190 - 2900 nm, virtual freedom from bubbles and inclusions. Grown boules are Z - crystals and about 100 mm in the direction down the optic axis that limits corresponding dimension in an optical part.
Silicon dioxide occurs naturally as sand or rock, and when melted, the resulting product is called Fused Quartz. If the silicon dioxide is synthetically derived, the material is often called Fused Silica. Fused Quartz is very pure, has a high chemical resistance, good thermal shock resistance and is very strong in compression. The low thermal expansion coefficient makes it ideal for mirrors and optical flats. It is used for viewing windows, being transparent to wavelengths from around 0.2 to 3.5 µm, insulators for electronic applications and for semi-conductor manufacturing.
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The division of light into two components (an "ordinary" and an "extraordinary ray") found in materials have two different indices of refraction in different directions (i.e. when light entering certain transparent materials, such as calcite, splits into two beams which travel at different speeds). Birefringence is also known as double refraction. Crystals possessing and exhibiting birefringence include hexagonal (such as calcite), tetragonal, and trigonal crystal classes, and are known as uniaxial. Orthorhombic, monoclinic, triclinic exhibit three indices of refraction. They are therefore trirefringent and are known as biaxial. Birefringent prisms include the Nicol prism, Glan-Foucault prism, Glan-Thompson prism, and Wollaston prism.
Another material, an excellent birefringence optical crystal undoped YVO4 is newly developed. It has very good transmission in a wide wavelength range from visible to infrared, large index of refractivity and birefringence difference. Compared to other important birefringence crystals, YVO4 has higher hardness, better fabrication property, water insoluble and man-made than calcite (CaCO3 single crystal); easier to get large, high quality crystal and lower cost than rutile (TiO2 single crystal). Those outstanding properties make YVO4 very important birefringence optical material and widely used in opto-electronic research, development and industry. For example, the optical communication system needs a huge quantity devices of undoped YVO4, such as fiber optical isolators, circulators, beam displacers, Glan polarizers and other polarizing devices.
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Microprocessor Crystals
- Package Options: A7 = HC-49/U 13.5 mm tall with gull leads
- Frequency Range: 1.8432 M Hz to 150.00 M Hz
- Resistance: 7 pf Maximum
- Shunt Capacitance: 10 to 1,000 uW
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Greenray Industries offers a line of custom low noise XOs for both.... Custom....
Features:
Available from 1Hz to 1GHz
Stabilities down to 5ppM
Low Phase Noise
Low G-Sensivity
CMOS, Sinewave....
SMT ....
Applications:
Test Equipment
Radar
Communications
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Pericom's offers a comprehensive product portfolio of SaRonix-eCera™ quartz crystal resonators. Our broad selection of industry-standard packages includes HC-49/U, metal surface mount, UM-1, tubular, plastic-molded, and ceramic surface-mount. These crystals function as a primary component in a broad line of precision and commodity oscillators, as well as modular timing solutions, or may be specified for direct use in electronic applications. Download the Frequency Control Decision Tree (PDF) or view the SaRonix-eCera oscillator portfolio.
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An increasing number of applications require the use of high temperature oscillators. For these applications, Statek offers the CXOHT, CXOMHT, and CXOXHT oscillators. These oscillators are designed to operate at temperatures up to 200ºC with a total frequency stability of 200 parts-per-million at this temperature. The CXOHT is offered in a 10.16 mm x 4.57 mm package. The CXOMHT oscillator is offered in a 6.50 mm x 5.00 mm package. The CXOXHT oscillator features the smallest size of the three, and is offered in a 3.20 mm x 2.50 mm package.
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The LXO oscillator has the highest accuracy and stability of all STATEK oscillators. The design consists of a CMOScompatible hybrid circuit, packaged in a hermetically-sealed metal DIP. Permanent, precision tuning of the oscillator is accomplished by laser trimming the crystal after it has been hermetically sealed in a ceramic package and connected to the oscillator circuit. This method of fine tuning allows for very tight calibration tolerance and eliminates the need for a trimming capacitor, a major source of long-term frequency drift. The specifications and characteristics of the LXO vary with frequency. The characteristics of the 32.768 kHz model are presented in this data sheet.
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Is a crystal oscillator which includes a varactor diode and associated circuitry allowing the frequency to be changed by application of a voltage across that diode
Typical Applications:
- Base Stations
- Test Equipment
- Telecom & Wireless Infrastructure
- Digital Switching
Features:
- 5X7 Surface Mount Package
- Reflow Process Compatible Optional
- ACMOS, TTL and LVPECL
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A crystal oscillator is defined as a crystal and oscillation circuit combined into one package. This has the advantage of eliminating external parts needed of the oscillation and optimising the operation of the crystal.
Crystal oscillators are often used in microprocessor and microcontroller applications to generate the clock pulses upon which all subsequent timing is based.
In order to determine the exact oscillator for a particular application there are many specific requirements, which are necessary to match. Such things as load condition, stability, supply voltage, and of course package must be first considered before selecting an oscillator.
Epson offezrs a wide range of quartz crystal oscillators :
Crystal oscillator SPXO that has the output function of one frequency. Output is able to be controlled with Output enable pin or Standby pin.
Crystal oscillator programmable that the customer can freely set up output frequency.
Crystal oscillator spread spectrum that has the SS function as for the EMI measure.
Crystal oscillator low jitter that included SAW resonator for low jitter.
Crystal oscillator high stability that is designed to high accuracy in SPXO.
Crystal oscillator multi-ouput that outputs two or more pieces of frequency simultaneously.
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HUBER+SUHNER’s attenuators are designed for a wide variety of RF and microwave applications and meet excellently the requirements of:
• design and engineering
• test and measurement
• build-in items for systems
Fixed attenuators are mainly used to reduce the power level of RF signals by a certain amount. The output signal is reduced with respect to the input.
Features and benefits
• broadband operationability
• wide choice of attenuation values
• low and medium power types
• all connectors meet the relevant IEC / MIL / CECC interface standards
• high repeatability
• custom designs available on request
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ATTENUATORS
Pasternack's Attenuators are used in a wide variety of applications to satisfy requirements where a reduction in power is needed. Attenuators are often used to extend the dynamic range, reduce signal levels and match circuits. They are available with number of connector options including 2.9mm, 7/16, 7mm, BNC, Type F, Type N, SMA, and TNC.
For bench mount testing applications, also see our lines of Continuously Variable, Rotary, Programmable, Push-Button, and Toggle Attenuators.
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Application for RC Filter and Snubber :
- Interference suppression; elimination of spark and transient phenomena in power switch and relay; arc suppressing for industrial heavy duty application; electrical automation control, starting, stopping, regulating or protecting electric motors
- Transient and dV/dt suppression for power Thyristor and Triacs in snubber circuit
- Fan Speed Regulator and Motor Speed Regulator
- Suitable for AC and DC voltage application
Varistor options available
Catalogue can be download in our website. http://www.filmcapacitor-st.com
We even support small quantity order.
Prompt Delivery, worldwide !
For further details and quotation please contact us : info@filmcapacitor-st.com
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from single to multiple combination · single or 3-phase operation · available in metal cans or epoxy cases · solid or stranded wire leads with varying lengths and terminations · commercial and industrial applications · CE mark available
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Broadband Digital Step Attenuators - 75 Ohm
Peregrine's highly linear, monolithic RF DSA family offers a selection of resolutions, minimum attenuation step sizes and termination impedances. Its UltraCMOS™ foundation allows for a unique initial attenuation state at power-up and a standard programming sequence and footprint across the 5 and 6 bit family. The DSA line provides industry-leading linearity over frequency and temperature, a versatile parallel or serial CMOS control interface, and operates on a single 3-volt supply, making it ideal for applications such as wireless base station, fixed wireless, microwave, VSAT, broadband telecom, military, space, test instrumentation, and optical equipment.
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RF Digital Step Attenuators (Monolithic) - 50 Ohm
Peregrine's highly linear, monolithic RF DSA family offers a selection of resolutions, minimum attenuation step sizes and termination impedances. Its UltraCMOS™ foundation allows for a unique initial attenuation state at power-up and a standard programming sequence and footprint across the 5 and 6 bit family. The DSA line provides industry-leading linearity over frequency and temperature, a versatile parallel or serial CMOS control interface, and operates on a single 3-volt supply, making it ideal for applications such as wireless base station, fixed wireless, microwave, VSAT, broadband telecom, military, space, test instrumentation, and optical equipment.
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The Rohde & Schwarz line of RF step attenuators comprises four models covering the frequency range from DC to 5.2 GHz. The largest attenuation range is 0 dB to 139 dB. Depending on the type, the attenuation can be set in steps of 0.1 dB or 1 dB.
* Wide frequency range: DC to 2.7/5.2 GHz
* Long life (more than 5 × 106 switching cycles per section)
* High accuracy
* Excellent matching
* Low residual attenuation
* Fully isolated
* Display of correction values or automatic error correction
* Manual operation and programming
* Characteristic impedance 50 Ω
* Continuous power-handling capacity 1 W
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Space saving SIP design.Less than 0.3 dB insertion loss
Available in 3rd order Butterworth and 7th order elliptical alignments
50 Ohm characteristic impedance (75 Ohm also available)
Samples of 12 values are available in Coilcraft Designer's Kit D301
RoHS-compliant. Matte tin over nickel over phos bronze terminations.
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Linear's solid-state "instant clocks" can be set to output a broad range of frequencies using a single resistor, or via an SPI or I2C interface.
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Used in Communication & Comsumer Electronics 173.325MHz~687.25MHz Tube or T&R
Used in FM Broadcast System(1) 100.70MHz~106.50MHz Tube or T&R Used in FM Broadcast System(2) 106.70MHz~111.10MHz Tube or T&R Used in FM Broadcast System(3) 111.20MHz~115.20MHz Tube or T&R Used in FM Broadcast System(4 86.50MHz~118.70MHz Tube or T&R
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Hitachi Mould Case Circuit Breaker ( Fuse-Free Breakers ) & Earth Leakage Breakers are designed for circuit protection of low-voltage distribution systems. They are suitable for applications as main breakers, protection of branch, feeder circuits and connected apapratus.
Quick contact inspection/ Easy contact replacement.
Easy wiring/ High safety/ High Reliability.
DIN rail mounting mechanism
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- The 12F446Q is a low-loss, compact, and economical surface-acoustic-wave (SAW) filter in a low-profile metal F-11 case for FRS & PMR.
- The 12F914Q is a low-loss, compact, and economical surface-acoustic-wave (SAW) RF filter in a low-profile metal F-11 case with center frequency 914.5 MHz.
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IF Filter for Intercarrier Application; IF Filter for Audio Application
IF Filter for Intercarrier/Multistandard Application;IF Filter for Video Application ; Bandpass Filter for DigitalTV&VOD;Bandpass Filter for Digital Radio;Filter for DigitalTV;IF Filter for Quasi/Split Sound Application
IF Filter For Video Application
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(TFS140E)For Space and Military applications:
- Full set of SAW design principles for customized products
- Low volumes supported
- Internal matching ability
- Introduction of additional production steps for high reliability
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Crystal filter is a crystal device that is used to pass through and or cut off frequency range within a frequency band.
SAW filter is a SAW device that is used to pass through and or cut off frequency range within a frequency band.
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Using piezoelectric materials such as Lithium Tantalate（LiTaO3）and Lithium Niobate（LiNbO3）, Fujitsu provides SAW Devices for various applications.
SAW Devices of Fujitsu realize compact size, high performance, and high reliability, utilizing original design technologies, advanced micro-processing technology, and construction technology.
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1.SCOPE
This specification shall cover the characteristics of 1-port SAW resonator used for remote-control security.
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Spectrum’s many years of experience in the design and manufacturing of filters has given us a unique perspective on EMI and its control. Our complete family of surface mount EMI filters includes mini surface mount, square surface mount, PSM power surface mount, and high frequency filters. With a simple structure and high withstanding voltage, our high performance EMI filters have a minimal PCB footprint, making them ideal for a wide range of PCB applications. Available in feed-thru and Pi circuit configurations, our high temperature constructed EMI filters are non-polar and surface mountable with excellent performance characteristics. Applications include automotive electronics, digital AV equipment, high current buss lines, peripherals, telecommunications, and switching power supplies.
• Variety of surface mount EMI filters, including: Three Terminal Chips, SA Series Arrays, MSM Mini-Surface Mount, SSM Square Surface Mount and PSM Power Surface Mount
• Tape and reel or bulk form packaging available
• Pick-n-Place equipment installation
• Available lead-free/RoHS compliant
• Rated voltage between 50 and 200 VDC
• Temperature range between -55°C and +125°C
• Capacitance ranging from 47 pF to .01μF
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Greenray Industries offers a full line of rugged precision TCXOs for both Military and Commercial requirements. Many of our tight stability TCXOs can replace OCXOs, while consuming much less power for less cost. Custom specifications and frequencies are available upon request, as well as RoHS or leaded versions.
Features:
Available from 1kHz to 1GHz
Stabilities down to 50ppB
Low Phase Noise
Low G-Sensitivity
Low Input Power
Voltage Controllable
Miniature SMT and Through-Hole configurations available
Applications:
Smart Munitions
Mobile Radios and Transceivers
Test Equipment
Telecom and Wireless Communications
SATCOM
Global Navigation Satellite Systems
Base Stations
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Oscillators, Passive filters
