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Silicon controlled rectifiers (SCR) are four-layer (PNPN) thyristors with three terminals: an input control terminal (gate), an output terminal (anode), and a terminal common to both the input and output (cathode). SCRs are used mainly with high voltages and currents, often to control alternating current (AC) where the change of sign causes the device to switch off automatically. Search by Specification | Learn More about Silicon Controlled Rectifiers (SCR)
Silicon controlled rectifier (SCR) power controllers precisely regulate output power to resistive heating loads such as industrial furnaces and ovens. They generally operate on either zero-crossing or phase angle control. Search by Specification | Learn More about SCR Power Controllers
SCR power supplies use silicon controlled rectifier (SCR) topology to provide well-regulated voltage and current output. Learn More about SCR Power Supplies
Selective catalytic reduction (SCR) systems inject ammonia into boiler flue gas and pass it through a catalyst bed where the nitrogen oxide gas (NOx) and ammonia react to form nitrogen and water vapor. Learn More about Selective Catalytic Reduction (SCR) Systems
DC power supplies accept an input power and output the desired form of DC power. Common types of DC power supplies include linear power supplies, switching power supplies, DC-DC converters, and silicon controlled rectifier (SCR) type power supplies. Search by Specification | Learn More about DC Power Supplies
Thyristors include four-layer diodes (Shockley diode), silicon-controlled rectifiers (SCR), diacs, triacs, gate turn-off thyristors (GTO), light-activated SCR (LASCR), and silicon-controlled switches (SCS). Shockley diodes behave as a pair... Search by Specification | Learn More about Thyristors
DC motor drives act as the interface and power supply between a motion controller and a DC motor. Search by Specification | Learn More about DC Motor Drives
...power differ in terms of technology type and performance specifications. There are three basic technology types: linear, switching, and silicon-controlled rectifier (SCR). Linear power supplies are low-cost, low-noise devices. Medical switching... Search by Specification | Learn More about Medical Power Supplies
Power supplies are devices that produce AC or DC power. This grouping includes current sources, DC power supplies, AC-DC adapters, DC-DC converters, AC power sources, and DC-AC inverters. Search by Specification | Learn More about Power Supplies
...in different configurations, including four-layer diodes called Shockley diodes, silicon-controlled rectifiers (SCR), gate turn-off thyristors (GTO), triacs and diacs, which are differentiated by the number of diodes or terminals used on the specialty... Learn More about Specialty Thyristors
Pulse transformers interface a pulse forming network (PFN) and a load. They match the impedance of the load to the PFN in order to maximize power-transfer efficiency. Search by Specification | Learn More about Pulse Transformers
Triacs are three-terminal silicon devices that are configured in an inverse parallel arrangement to provide load current during both halves of the AC supply voltage. They are often used to control motor speed. Search by Specification | Learn More about Triacs
High voltage power supplies use linear technology to provide one or more DC outputs at voltage levels of hundreds or thousands of volts. Search by Specification | Learn More about High Voltage Power Supplies
Thermal oxidizers and catalytic oxidizers are used to destroy volatile organic compounds (VOC) in process gases. Search by Specification | Learn More about Thermal Oxidizers and Catalytic Oxidizers
Sound proofing and acoustic materials are used to attenuate, deaden, or control sound and noise levels from machinery and other sources for environmental amelioration and regulatory compliance. Search by Specification | Learn More about Soundproofing and Acoustic Materials
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Silicon Controlled Rectifier (SCR) by AMS American Microsemiconductor, Inc.
Unijunction Transistors (UJT's) from AMS American Microsemiconductor, Inc.
AMS: Unijunction Transistor (UJT) American Microsemiconductor, Inc.
Diacs - Bidirectional trigger diodes by AMS American Microsemiconductor, Inc.
OLDIES BUT GOODIES: Try AMERICAN MICROSEMI American Microsemiconductor, Inc.
Programmable Unijunction Transistor known as PUT American Microsemiconductor, Inc.
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Product News for scr
Silicon Controlled Rectifier (SCR) by AMS
The Silicon Controlled Rectifier (SCR) is simply a conventional rectifier controlled by a gate signal. With over 17,000,000 electronic components sitting on our warehouse shelves we can almost guarantee that we've got the right part for the job! (read more)
RVM series: new low cost SCR Power Controller
The model RVM is a rugged family of power controller available in three phase and single phase versions rated for 40 amps at 660 VAC. The Model RVM offers zero cross firing for fixed resistance loads, which is almost silent in operation. (read more)
Selective Catalytic Reduction (SCR) Systems
Selective Catalytic Reduction (SCR) uses ammonia injected at elevated temperatures to react with oxides of nitrogen (NOx) in the air or gas. The NOx and ammonia are converted to harmless nitrogen and water.
SCR technology is particularly suited for low to moderate levels of NOx in the air or gas. (read more)
Three Phase SCR Power Controller
The current ratings of the 7300A cover the range from 16 Amps up to 160 Amps, with units rated at 80 Amps and above being fan cooled.
The voltage rating extends to a maximum of 500 Volts AC.
These units consist of three thyristor controlled channels each rated at the specified current and voltage. (read more)
SCR Clamps
For over thirty years VEP has specialized and perfected the technology of the SCR Clamp. VEP has a wide variety of clamps available with shorter than average lead times to suit all of your clamping needs. Clamp load ranges from 700 lbs (363 Kg) of force with 2.125" (53.98 mm) bolt spacing to 20,000 lbs (9,072 Kg) of force with a 7.50" (190.5 mm) bolt spacing are readily available. (read more)
Selective Catalytic Reduction (SCR) System
Where large volumes must be handled, we can provide a solvent concentration stage using a special media which captures the VOC and then is regenerated. This allows the released VOC gas to be sent to a much smaller oxidizer. The result is a reliable system with low operating cost. (read more)
EMI Filters for Motion Control/SCR Applications
Filter Concepts offers a broad range of agency approved single and three phase filters to solve EMI problems experienced in the industrial environment. (read more)
Catalyst / Purifier / SCR Insulation
Firwin manufactures removable insulation blankets for purifiers, catalysts, and SCRs. Proper insulation is an important component of optimal catalyst performance. Effective heat containment speeds up the time for the Catalyst to reach the minimum effective temperature for effective pollutant burn off. (read more)
PHOTO SCR OPTOCOUPLERS H11C4
AMS is now supplying the H11C4 OPTOCOUPLER featuring a gallium arsenide diode input and a PHOTOSCR Output in a six pin Dual Inline package. (read more)
MiniMax™ Power Paks
Chromalox announced today the introduction of MiniMax™ a new line of compact, fine resolution power controllers for OEM applications. This series of three products has flexible plug-in options, current limits, space-saving footprints, and universal approvals. These versatile units are ideal for applications that require fast responding loads where resistance changes as a function of temperature. (read more)
Parts by Number for scr
| Part # | Distributor | Manufacturer | Product Category | Description |
|---|---|---|---|---|
| SCR | netCOMPONENTS | Not Provided | Not Provided | Not Provided |
| SCR063 | netCOMPONENTS | Not Provided | Not Provided | Not Provided |
| SCR001 | netCOMPONENTS | Not Provided | Not Provided | Not Provided |
Conduct Research
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Mixing It Up For SCR (Diesel Progress) (.pdf)
As the on-highway vehicle industry begins looking ahead to the 2010 exhaust emissions standards, many engine and exhaust system manufacturers are looking at urea-injected selective catalytic reduction...(read more)
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Power Plant SCR Units and Ammonia Safety Measures
Selectrive Catalytic Reduction (SCR) systems will be installed on 100,000 MW of U.S. coal-fired generating capacity by 2004. SCR investment for Nitrogen Oxides (NOx) control will be the largest for...(read more)
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Ammonia Sensor for Closed-Loop SCR Control (.pdf)
Selective Catalytic Reduction (SCR) is the dominant solution for meeting future NOx reduction regulations for heavy-duty diesel powertrains. SCR systems benefit from closed-loop control if an...(read more)
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Wiremesh Substrates for Oxidation, TWC and SCR Converters (.pdf)
The primary requirements of exhaust after treatment systems are low back pressure, low system weight, better emission performance and lower cost. Combinations of these properties provide better engine...(read more)
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Model Based Control of SCR Dosing and OBD Strategies with Feedback from NH3 Sensors (.pdf)
This paper presents a model-based control system for SCR urea dosing employing an embedded real-time SCR chemistry model and a NH3 sensor. The control algorithm consists of a number of control...(read more)
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Monitoring, Feedback and Control of Urea SCR Dosing Systems for NOx Reduction: Utilizing an Embedded Model and Ammonia Sensing (.pdf)
This paper presents a monitoring, feedback and control system for SCR urea dosing utilizing an embedded model and NH3 sensing after the SCR for loop closing control....(read more)
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Dual SCR Aftertreatment for Lean NOx Reduction (.pdf)
Low-cost lean NOx aftertreatment is one of the main challenges facing high-efficiency gasoline and diesel engines operating with lean mixtures. While there are many candidate technologies, they all...(read more)
- Solving SCR Line Voltage Notching
- SCR Control of Electric Heaters
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A Review of Solid Materials as Alternative Ammonia Sources for Lean NOx Reduction with SCR (.pdf)
The need for improved emissions control in lean exhaust to meet tightening, world-wide NOx emissions standards has led to the development of selective catalytic reduction of NOx with ammonia as a...(read more)
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SCR Power Controllers SCR Power Controllers by Temp, Inc. TEMP, INC. SCR Power Controllers provide See Temp, Inc. Information |
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SCR-300 - Wikipedia, the free encyclopedia Signal Corps Radio set SCR-300-A The SCR-300 was a portable radio transceiver used by US Signal Corps in World War II. This |
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h i semiconducTors: G Power DioDe anD SCr MoDuleS voltage (2500 V) sheltOn, ct 06484 95100 selB Add-A-pak 92 x 21 VsKV scr ? RoHS-compliant ? Industrial welding AAp Screwable Up to 7 Common anode See Vishay Intertechnology, Inc. Information |
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HindlePower SCR/SCRF Series Battery Charger SCR/SCRF Stationary Float Battery Chargers analog SCR control rectification customizable design architecture See HindlePower, Inc. Information |
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STMicroelectronics - Thyristors & ACSwitches - SCR ST Home | Thyristors & ACSwitches | SCR SCR Based on Sensitive SCRs are easy to drive, thanks to their very low gate current triggering. See STMicroelectronics, Inc. Information |
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SCR Throttle Circuits. London Model Railroad Group SCR Throttle Push Button SCR Throttle Schematic It was designed for use on a "The London |
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SCR Series from CORNELL-DUBILIER - Capacitors, SCR Commutation... SCR Commutation SCR Snubber Cases Chemicals Hybrid SCR-Diode Hybrid SCR-High Voltage Diode See Galco Industrial Electronics Information |
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Tapcon HW4-334 Masonry Scr, Hex, 1/4x3 3/4 L, Pk100 See Grainger Industrial Supply Profile & Catalog |
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Southwire - SCR - Systems - Southwire Commissions new... SCR Environmental History Jobs Letter from the CEO SCR Technology Rod Copper Aluminum Products See Southwire Co., Inc. Information |
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Hilite International: SCR Gen 1 Air Assisted SCR-Technology - SCR Gen 1 Air Assisted Home » Products » SCR-Technology » SCR Gen 1 Air Assisted See Hilite International Information |
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