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Foil Capacitors
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BK Precision 575A Digital IC Test and Identifier
List Price: $1,195.00
Sale Price: $1,195.00
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The Model 575A is able to locate intermittent and temperature related faults by using its unconditional or conditional loop testing modes. Unknown device identification is easily accomplished by selecting SEARCH from the menu, selecting the number of pins on the device and activating Search Mode. The 575A will search its library and identify the device, displaying possible functional equivalents for replacement. As part of the IC test, the specific IC number, the functional description of the device, and the status of faulty pins are scrolled through on the built-in display.
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Monster 300 DigiCap Stiffening Capacitor - 1.0 Farad w/Digital Meter (MPC P300 DCAP-1F)
List Price: $199.95
Sale Price: $110.00
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Get all the power your amp needs for peak performance! It's a fact: your car's electrical system can't provide the maximum power your amps need. When your amp isn't getting enough power you'll know--dimming headlights, wimpy bass, and distorted sound. Featuring advanced Monster technologies including machine-etched foil and supercharged 18-volt electrolyte fluid, Monster DigiCap Stiffening Capacitors can quickly release stored electricity to help supply power when your amp needs it most. With Monster's digital voltage meter you'll always know how much power you have or need.
Model No. MPC P300 DCAP-1F Advanced performance DigiCap top shows accurate readout of available system voltage Reverse polarity buzzer & auto disconnect to protect the capacitor Helps prevent amp clipping on max or loax music transients 20 VDC rating with low internal resistance for increased, instant power transfer Improved SPL, dynamics & sound For use in systems up to 1000W max power 1 farad
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Focal Access 165 A3 6.5-Inch 3-Way Component Speaker Kit
List Price: $529.00
Sale Price: $340.00
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6-1/2" 3-Way Access Component System Power Handling: Peak: 320 watts per set / 160 watts each side RMS: 160 watts per set / 80 watts each side Woven, glass-fiber cone woofer Butyl rubber surround Aluminum inverted dome tweeter Non-resonant ABS/fiberglass basket External crossover with 3-position tweeter 4 ohms impedance 2-Layer Kapton voice coil former Top-mount depth: 2-9/16" Priced Per Complete Component System: 2 midwoofers, 2 tweeters and 2 crossover networks.
Discover the world of Focal sound quality with the 165 A3. This 6.5-inch three-way kit adds a 4-inch midrange speaker to the A1's offerings, so it can deliver even more Focal sound--extreme dynamics, punchy bass and accurate treble, with an expansive soundstage to fill your vehicle with crystal-clear audio. The 6.5-inch woofers boast a one-inch voice coil with excellent power handling, a high-sensitivity magnet, and butyl rubber surround for durability and powerful bass. The aluminum inverted dome tweeters provide clear and accurate treble, and can be set at three different levels using the crossovers, to provide the ideal relative volume for its install location. Experience Focal's "Spirit of Sound" with flawless imaging, and uncommon detail and dynamics. About the Access Line Discover the world of Focal sound quality via a range that reconciles technology, performance and affordability. The same Focal character and our philosophy of "The Spirit of Sound" is displayed by the extreme attention to detail found at every development stage for the various transducers and crossovers. The essential component in terms of quality of reproduction, richness of timbre plus image detail is the inverted dome aluminum tweeter whose inclusion represented a true challenge: how to bring a unique Focal technology into a more affordable market segment. At the same time, the woofers and subwoofers combine high sensitivity and high power handling. The humidity resistant woven glass fibre cone combines the dynamics and precision of the mid-range while offering a deep and articulated bass. The 165 A3 kit adds a 4-inch midrange driver to the A1's offerings, with the same construction as the woofer. The woofer's power handling and reliability are remarkable thanks to deliberately oversized voice coils, resulting in deep and accurate bass. Click to enlarge. Aluminum inverted dome tweeter technology offers significant rigidity and lowers distortion. Click to enlarge. Crossover with 3-level tweeter control. Click to enlarge. The 165 A3 Woofer and 4-inch Midrange The 6.5-inch Access woofer and 4-inch Midrange are both built with a light and stiff cone, coupled with a butyl rubber surround, offering a degree of quality never before encountered at this price level. The special all weather cone will perform in hot and humid environments without distortion or warping. The woofer's power handling and reliability are remarkable thanks to deliberately oversized voice coils, resulting in deep and accurate bass. Painted DIN chassis, 20% glass fiber filled ABS material This strong, rigid chassis is non-magnetic and nonresonant. All weather woven glass fiber cone The durable, humidity-resistant cone provides dynamic bass and precise midrange. Phase plug Phase plug designs control midrange out of the listening axis, for added accuracy. 25mm (1") voice coil (woofer) Larger voice coils provide excellent power handling, which in turn provides a tight, well-defined low-end. 85mm (3-1/3") magnet (woofer) High sensitivity where everything begins. Voice coil cooling system Provides reliable, consistent performance, no matter what kind of abuse your system dishes out. The TN 44 tweeter Aluminum inverted dome tweeter technology offers significant rigidity and lowers distortion. Ideal air coupling, the main advantage of the inverted dome shape, allows a very wide soundstage and very accurate image, unlike a convex (traditional) dome that is moving more on its periphery than on its center, causing a weak coil/dome energy transfer. Aluminum inverted dome tweeter Provides accurate treble with the utmost efficiency. 20mm (13/16") ferrofluid voice coil Excellent power handling and heat dispersal. Crossover The 12/12dB/octave (300Hz-4kHz) separated Access crossover fully reflects Focal's philosophy, which is oriented toward product application and uncompromising quality requirements. Polypropylene capacitors bring to these products high and distortion-free dynamics. Level control available in two-way systems allows refining the tuning of the tweeter in all locations. Adjustable tweeter level Adjust the tweeter level control according to location (3 level settings) with a simple switch. Air core inductors Insensitive to parasite interferences. 165 A1 Technical Specifications Frequency response: 55Hz - 20kHz Nominal power: 80 W Maximum power: 160W Sensitivity: 92 dB Cone: Braided glass fiber Surround: Butyl Nom. impedance: 4 ohms DC resistance: 3.31 ohms VC diameter: 25mm (1 inch) VC height: 11 mm (7/16 inch) Former: Kapton Layers: 2 Wire: Copper Inductance: 0.21 mH Magnet Dimensions (D x H): 85 x 15mm (3-1/3 x 9/16 inches) Magnet weight: 0.35 kg (.77 lb.) Flux density : 1.3 T Gap height: 5.5 mm (3/16 inch) Net weight: 0.85 kg (1.87 lb.) About Focal Innovation is key to the Focal sound. For 25 years, through the pursuit of constant new advances in technology, Focal has been able to develop a harmonious research and production system that enables us to continuously improve our products and introduce new ones, all with the same goal: the most faithful reproduction of music. The latest example of this philosophy has been the introduction of Beryllium in our top products, which has become a new reference worldwide. Constantly pursuing innovation is the embodiment of Focal's corporate strategy and that goal involves every facet of the company. From R&D to production to quality control, all our teams are fully involved and focused on this one objective: continual progress through innovation. In today's world, where globalization and the pursuit of chasing cheaper production methods have tempted most companies to splinter their organizations, Focal has opted to be different. Though we have grown tremendously through the years, our R & D, headquarters and manufacturing facilities remain based in Saint-Etienne (France). We have learned that true innovation is not simply work carried out at the research department, but is also a question of comprehensive management and the direct control of the different production phases. The example of Beryllium is a significant one. Only three years ago no one was capable of producing tweeters with a pure Beryllium foil dome. Focal innovated a solution based on research and the invention of specific in-house industrial processes. Such an approach has given us an important advantage over our competitors: we develop our own technology, which allows us to consistently provide true quality production using our own methods. In 2008, the Focal Car range gets richer with a new amplifier line: Solid. This perfectly sums up Focal's commitment for high musical quality from the entry-level contrary to the general tendency that consists in looking for the cheapest prices in priority instead of performance.The result is music standardization and trivialization, which is highly prejudicial to sound quality. Focal cultivates this difference. This is the core strength of our brand and our company. This is the Spirit of Sound. We want to share this with you... It is our Utopia What's in the Box 6.5-inch Woofer (pair), 4-inch Midrange Driver (pair), Tweeter (pair), Crossover (pair), Woofer Grille, Tweeter Flush Mounting and Surface Mounting Supports, Installation hardware, Owner's Manual Other Focal Component Solutions Focal Access 130 A1 5.25-Inch 2-Way Component Speaker Kit Focal Access 165 A1 6.5-Inch 2-Way Component Speaker Kit
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Focal Access 165 A1 6.5-Inch 2-Way Component Speaker Kit
List Price: $349.00
Sale Price: $173.00
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165a1 - Focal Access 6.5" 2 Way Component Speakers Product Features and Technical Details Product Features Woofer: 165mm (6-1/2") Voice Coil: 25mm (1") Max. power handling: 120W Frequency response: 60Hz-20KHz Separate Crossover: 12/12dB/octave (4,8kHz) with adjustable tweeter 3 level settings Technical Details Model: 165-A1
Discover the world of Focal sound quality with the 165 A1. This 6.5-inch two-way kit with separate crossovers efficiently delivers the Focal sound--extreme dynamics, punchy bass and accurate treble, with an expansive soundstage to fill your vehicle with crystal-clear audio. The 6.5-inch woofers boast a one-inch voice coil with excellent power handling, a high-sensitivity magnet, and butyl rubber surround for durability and powerful bass. The aluminum inverted dome tweeters provide clear and accurate treble, and can be set at three different levels using the crossovers, to provide the ideal relative volume for its install location. Experience Focal's "Spirit of Sound" with flawless imaging, and uncommon detail and dynamics. About the Access Line Discover the world of Focal sound quality via a range that reconciles technology, performance and affordability. The same Focal character and our philosophy of "The Spirit of Sound" is displayed by the extreme attention to detail found at every development stage for the various transducers and crossovers. The essential component in terms of quality of reproduction, richness of timbre plus image detail is the inverted dome aluminum tweeter whose inclusion represented a true challenge: how to bring a unique Focal technology into a more affordable market segment. At the same time, the woofers and subwoofers combine high sensitivity and high power handling. The humidity resistant woven glass fibre cone combines the dynamics and precision of the mid-range while offering a deep and articulated bass. Experience Focal's "Spirit of Sound" with flawless imaging, and uncommon detail and dynamics. The woofer's power handling and reliability are remarkable thanks to deliberately oversized voice coils, resulting in deep and accurate bass. Click to enlarge. Aluminum inverted dome tweeter technology offers significant rigidity and lowers distortion. Click to enlarge. Crossover with 3-level tweeter control. Click to enlarge. The 165 A1 Woofer The 6.5-inch 130 A1 Access woofer is built with a light and stiff cone, coupled with a butyl rubber surround, offering a degree of quality never before encountered at this price level. The special all weather cone will perform in hot and humid environments without distortion or warping. The woofer's power handling and reliability are remarkable thanks to deliberately oversized voice coils, resulting in deep and accurate bass. Painted DIN chassis, 20% glass fiber filled ABS material This strong, rigid chassis is non-magnetic and nonresonant. All weather woven glass fiber cone The durable, humidity-resistant cone provides dynamic bass and precise midrange. Phase plug Phase plug designs control midrange out of the listening axis, for added accuracy. 25mm (1") voice coil Larger voice coils provide excellent power handling, which in turn provides a tight, well-defined low-end. 85mm (3-1/3") magnet High sensitivity where everything begins. Voice coil cooling system Provides reliable, consistent performance, no matter what kind of abuse your system dishes out. The TN 44 tweeter Aluminum inverted dome tweeter technology offers significant rigidity and lowers distortion. Ideal air coupling, the main advantage of the inverted dome shape, allows a very wide soundstage and very accurate image, unlike a convex (traditional) dome that is moving more on its periphery than on its center, causing a weak coil/dome energy transfer. Aluminum inverted dome tweeter Provides accurate treble with the utmost efficiency. 20mm (13/16") ferrofluid voice coil Excellent power handling and heat dispersal. Crossover The 12/12dB/octave (5kHz) separated Access crossover fully reflects Focal's philosophy, which is oriented toward product application and uncompromising quality requirements. Polypropylene capacitors bring to these products high and distortion-free dynamics. Level control available in two-way systems allows refining the tuning of the tweeter in all locations. Adjustable tweeter level Adjust the tweeter level control according to location (3 level settings) with a simple switch. Air core inductors Insensitive to parasite interferences. 165 A1 Technical Specifications Frequency response: 60Hz - 20kHz Nominal power: 60 W Maximum power: 120W Sensitivity: 92 dB Cone: Braided glass fiber Surround: Butyl Nom. impedance: 4 ohms DC resistance: 3.45 ohms VC diameter: 25mm (1 inch) VC height: 11 mm (7/16 inch) Former: Kapton Layers: 2 Wire: Copper Inductance: 0.21 mH Magnet Dimensions (D x H): 85 x 15mm (3-1/3 x 9/16 inches) Magnet weight: 0.3 kg (.66 lb.) Flux density : 1.3 T Gap height: 5.5 mm (3/16 inch) Net weight: 0.85 kg (1.87 lb.) About Focal Innovation is key to the Focal sound. For 25 years, through the pursuit of constant new advances in technology, Focal has been able to develop a harmonious research and production system that enables us to continuously improve our products and introduce new ones, all with the same goal: the most faithful reproduction of music. The latest example of this philosophy has been the introduction of Beryllium in our top products, which has become a new reference worldwide. Constantly pursuing innovation is the embodiment of Focal's corporate strategy and that goal involves every facet of the company. From R&D to production to quality control, all our teams are fully involved and focused on this one objective: continual progress through innovation. In today's world, where globalization and the pursuit of chasing cheaper production methods have tempted most companies to splinter their organizations, Focal has opted to be different. Though we have grown tremendously through the years, our R & D, headquarters and manufacturing facilities remain based in Saint-Etienne (France). We have learned that true innovation is not simply work carried out at the research department, but is also a question of comprehensive management and the direct control of the different production phases. The example of Beryllium is a significant one. Only three years ago no one was capable of producing tweeters with a pure Beryllium foil dome. Focal innovated a solution based on research and the invention of specific in-house industrial processes. Such an approach has given us an important advantage over our competitors: we develop our own technology, which allows us to consistently provide true quality production using our own methods. In 2008, the Focal Car range gets richer with a new amplifier line: Solid. This perfectly sums up Focal's commitment for high musical quality from the entry-level contrary to the general tendency that consists in looking for the cheapest prices in priority instead of performance.The result is music standardization and trivialization, which is highly prejudicial to sound quality. Focal cultivates this difference. This is the core strength of our brand and our company. This is the Spirit of Sound. We want to share this with you... It is our Utopia What's in the Box 6.5-inch Woofer (pair), Tweeter (pair), Crossover (pair), Woofer Grille, Tweeter Flush Mounting and Surface Mounting Supports, Installation hardware, Owner's Manual Other Focal Component Solutions Focal Access 130 A1 5.25-Inch 2-Way Component Speaker Kit Focal Access 165 A3 6.5-Inch 3-Way Component Speaker Kit
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New-POWER ACOUSTIK PCX-20F 20-FARAD DIGITAL CAPACITOR - POWPCX20F
List Price: $141.61
Sale Price: $87.95
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POWER ACOUSTIK PCX-20F 20-FARAD DIGITAL CAPACITOR24V DC ; INTERNALLY STACKED FOIL CARBON CAPACITORS; DIGITAL BLUE VOLTAGE DISPLAY; TINTED PLEXIGLAS VIEWING WINDOW; 8 BLUE LEDS INSIDE VIEWING WINDOW; ELECTRONICS POLARITY PROTECTION CIRCUIT; OVER-VOLTAGE PROTECTION CIRCUIT; PLATINUM-PLATED TERMINALS; SATIN FINISH WITH CHROME END CAPS & MOUNTING BRACKETS; ALUMINUM CASE GIFT BOX WITH FRONT GLASS DISPLAY
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Acoustik Pcx-10f 10 Farad Digital Display Car Audio Capacitor
List Price: $127.83
Sale Price: $86.95
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BRAND NEW 2008 POWER ACOUSTIK PCX-10F 10 FARAD DIGITAL DISPLAY CAR AUDIO CAPACITOR WITH NEON LIGHTS + DIGITAL BLUE VOLTMETER
Features:
Digital Power Stabilizing Capacitor
10 Farad Power
24 Volts DC Internally Stacked
Internally Stacked Capacitors (foil-carbon)
8 Digital Blue LEDs inside glass window
Tinted plexi-glass window
Electronics Polarity Protection Circuit
Over Voltage Protection Circuit
Clear Lucite Mounting Brackets
Satin finish with chrome end caps and mounting brackets
Platinum plated terminals
Aluminum case gift box with front glass window
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To use USB to charge batteries
Universal Serial Bus (USB) port is a power and ground with a bi-directional data port. USB can connect all types of peripherals, including external drives, storage devices, keyboard, mouse, wireless interfaces, video and still cameras, MP3 players and the countless variety of electronic equipment. Many of these devices use battery-powered, some with built-in battery. For battery charging design, the application of a wide range of USB brings both opportunities and challenges. This paper describes how a simple Olympus E1 battery charger with the USB power source interface. Article reviews the USB power bus characteristics, including voltage, current limit, inrush current, connectors and cable connection problem. At the same time introduced a nickel-metal hydride batteries (NiMH) and lithium battery technologies, charging methods, and charge termination techniques. Gives a complete example of circuit used to implement USB port for charging NiMH batteries intelligent, and gives the charging data.
Overview
Universal Serial Bus (USB) port is a power and ground with a bi-directional data port. USB can connect all types of peripherals, including external drives, storage devices, keyboard, mouse, wireless interfaces, video and still cameras, MP3 players and the countless variety of electronic equipment. Many of these devices use battery-powered, some with built-in battery. For battery charging design, the application of a wide range of USB brings both opportunities and challenges. This paper describes how a simple battery charger with the USB power source interface. Article reviews the USB power bus characteristics, including voltage, current limit, inrush current, connectors and cable connection problem. At the same time introduced a nickel-metal hydride batteries (NiMH) and lithium Olympus E-E300 battery technologies, charging methods, and charge termination techniques. Gives a complete example of circuit used to implement USB port for charging NiMH batteries intelligent, and gives the charging data.
USB Features
USB bus can provide power to low-power electronic devices. Bus-power and power isolation, and has very good stability. However, the available current is limited, while the host or power between the load and there is a potential interoperability problems.
Two-way USB port from 90? differential shielded twisted-pair, VBUS (+5 V power supply), and constituted. This is four lines from the aluminum foil and braid shield within the outer shield layer shielding. The latest USB specification version 2.0 standard is available from USB organizations for free. To achieve full compliance with the normative standards, through a functional device and the host controller to achieve two-way communication between the. Specification defines a unit load as 100mA (max). Any equipment allowed to draw the maximum current of 5 units of the load.
USB ports can be divided into low-power port and power port into two categories, low-power port can provide a unit load of current, high-power port provides up to five units of the load current. When the device is connected to the USB port, the device enumeration process to identify and determine its load requirements. In this process, only to allow the device from the host draw up a unit load of current. Enumeration process is complete, if the host's power management software allows, then the high-power devices can draw a larger current.
Some host systems (including downstream USB hub) through fuses or active current limit detector provides workflow features. If the USB device is not USB port through the enumeration process begins with drawing large currents (more than one unit load), then the host will detect over-current condition and will be closed are using one or more USB ports. The market supply of a number of USB devices, including independent Olympus EVOLT battery charger, do not function controller to handle enumeration process, but the current draw is more than 100mA. In this inappropriate conditions, these devices may cause the host problem. For example, if a drawing 500mA current device into a bus-powered USB hub, and did not correct the enumeration process, it may lead to the hub port and host port at the same time overload.
The host operating system, using advanced power management of the situation will be even more complicated, especially notebook computers, it is always hoped that the port currents as low as possible. In some power-saving mode, the computer will suspend issuing commands to the USB device and then think that equipment into a low-power mode. Equipment can be included in a function to communicate with the host controller is always a good practice, even for the same is true for low-power devices.
USB 2.0 specification is very comprehensive and provides for the quality of power supply, connectors, construction, cable material, allowing the voltage drop and inrush current. Low current and high-current power supply port with a different target. This was mainly by the host and the load between the connectors and cable voltage drop on the decision, and includes USB-powered hub to generate voltage drop. Including computer, or self-powered USB hub, including the host, have large current port, which provides maximum 500mA of current. Passive, bus-powered USB hub with a low current port. Table 1 shows the high current and low-current USB ports upstream side (power) pin allows the voltage tolerance.
These indicators apply to the upstream end of the host or hub port connector pins. Cables and connectors on the I x R drops need to be considered separately.
Subject to the host USB 2.0 specification, high-power port with the upstream end of 120?F, low ESR capacitors. The connected USB device input capacitance of 10?F or less limited to, in the initial stage of the load connected, allowing the load from the host (or self-powered hub) to draw the maximum charge number of 50?C. As a result, when the new device is connected to the USB port, the upstream port transient voltage drop is less than 0.5V. If the normal work load required a greater input capacitance, you must provide inrush current limiter, in order to ensure a larger capacitor charging current does not exceed 100mA.
When the USB port with a bus-powered USB hub, hub on the access of low-power device, USB port on a permissible DC voltage drop shown in Figure 1. High-power loads and bus-powered hub connection, the voltage drop will exceed the target given in Figure 1, and will cause the bus overload.
Figure 1. Host to low-power load voltage drop is greater than the figure given to allow DC voltage drop, it will cause the bus overload.
About the Author
As a leading UK laptop battery retailer over the past ten years, We carry nearly all the laptop batteries for brands such as HP, DELL, ACER, APPLE, SONY, TOSHIBA, ASUS laptop ,ect.. All of our laptop batteries come with a 30 Day Money Back Guarantee as well as a One Year Warranty
Capacitance of a capacitor?
A capacitor can be made from two sheets of aluminum foil separated by a sheet of waxed paper. If the sheets of aluminum are 0.34 m by 0.35 m and the waxed paper, of slightly larger dimensions, is of thickness 0.040 mm and dielectric constant = 2.5, what is the capacitance of this capacitor?
......................................nF
C = [k * Eo * A] / d
k = dielectric constant =2.5
Eo = permittivity of vacuum = 8.85 * 10 ^ ( - 12)
A = 0.34 * 0.35 = 0.119 sq.m
d = 0.040 mm * 1 m / 1000 mm = 0.000004 m
C = 0.00000065821875 farad or
C = 0.00000065821875 * 10 ^ ( - 9) = 658.21875 nF
Aluminum capacitor supply to improve in 2Q10
Tight supply of aluminum capacitors is expected to ease in the second quarter thanks to improving supply of aluminum foils, according to industry sources.
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