Subminiature capacitors (usually ceramic and solid tantalum) which are packaged in a chip form and fastened directly to foil patterns.
Provides a desired value of capacitance between the feed-thru conductor and the metal chassis or panel through which the conductor is passing. Superior performance over typical two-terminal capacitor due to minimal lead inductance.
Usually required where motor starting torques must be relatively high in relation to running torque. Can be found in motors in conjunction with the windings.
A capacitor having only air as the dielectric material between its plates.
Consists of two conducting electrodes, with the anode having an aluminum metal oxide film acting as the dielectric material or insulating medium. These capacitors are generally used in filtering, bypassing and coupling.
Consists of two metallic plates separated by a ceramic dielectric whose area and spacing determines the capacitance. These capacitors are low cost and suitable for used for general purpose circuits.
Alternate layers of metal (electrodes) with ceramic (dielectric) materials. Ceramic capacitors tend to have low inductance and dielectric losses. Generally used in filters and timing applications.
General term for capacitors using layers of metal and insulated with polyester, polycarbonate, polypropylene, polystyrene, or other dielectric materials.
Generally used as part of a suppression network to reduce spikes and EMI in power supply designs.
Constructed with mica sheets as the dielectric material between adjacent plates. Mica capacitors do not change physically or chemically with age and have good temperature stability and resistance to corona damage.
Similar to tantalum electrolytic capacitors but where niobium is used as the anode. Niobium metal is more abundant, cheaper, and lighter than tantalum, but fall short of tantalum capacitors in leakage current and operating temperature stability.
Formed with paper impregnated with electrical grade oil, or similar high dielectric constant fluid, with extended foil plates. Primarily designed to provide very large capacitances for industrial AC energy storage applications.
General term for capacitors with metal foil layers rolled into a cylinder with paper dielectric material
Consists of two metallic plates separated by a porcelain dielectric insulator. These type of capacitors are used in RF and microwave applications for their very high Qs.
Tantalum electrolytic capacitors use tantalum material for the electrodes. These capacitors are superior to aluminum electrolytic capacitors in temperature and frequency characteristics.
Defined as capacitors whose working voltage exceeds 500 volts DC. Used in high voltage power supplies, X-ray devices, pulse applications, voltage multipliers, etc.
Capacitors designed with low lead inductance for external connection to the plates and in the internal series interconnects used to join sets of plates together. Low ESL capacitors are desired in bypass and decoupling applications.
Have a low equivalent internal AC series resistance which is desirable in power supplies, high-current pulse circuitry, RF/microwave elements, and other applications.
Multiple-layer capacitors interleave dielectric and electrode layers. This type of capacitor has increased current handling capacity, higher Q, and lower internal series resistance than conventional capacitors of the same size and capacitance.
Usually aluminum capacitors with a high-conductivity solid organic semiconductive electrolytic material which enables smaller size, lower ESR, better ripple response, and flatter temperature characteristics than an equivalent aluminum electrolytic.
This is a general term referring to capacitors that handle large currents or high voltages, can be used in charging systems, and applications in electrical distribution systems.
Discrete miniature capacitors which are packaged without leads and fastened directly to foil patterns.
Capacitors whose value may be changed by using mechanical means to vary the distance between the plates or the amount of overlapping plate surface; or variable capacitance diodes that change their capacitance as a function of the applied voltage.
Unconventional internal design yields a larger capacitance per unit volume than other types. Valuable for high-current and low frequency electrical circuits, power supply filters, etc. Applications are similar to those of rechargeable batteries.
Recent Articles for Capacitors:
Tantalum capacitors feature built-in fuse
The Tantamount TF3 series tantalum chip capacitors feature a built-in fuse that activates within 0.1 s with a minimum . . .
|
Power caps offered in larger case sizes
The recently enhances 101/102 PHR-ST screw-terminal power aluminum capacitors are now offered in are now available in 11 case . . .
|
Ultracapacitors offer 5 kF for utility apps
The 1,000–, 3,000– and 5,000–F ultracapacitors are the newest members of a family of large-cell prismatic electrochemical double-layer capacitors . . .
|
Tantalum caps offer industry’s lowest ESR ratings in C case size
The TPS Series tantalum capacitors are presented as offering the industry’s lowest ESR, 80-mΩ, , in a C . . .
|
Solid capacitors feature voltages to 35 V
The RoHS-compliant 94SVPD Series aluminum solid capacitors feature conductive polymer technology that offers high ripple currents, high voltages, and . . .
|
|
eeTechBriefs –
15-Minute on-demand multimedia web casts covering the latest product developments.
3M™ Ultra Hard Metric (UHM) Fully Shielded 2 mm Hard Metric Socket Connectors are engineered to deliver more than 7 Gbps backplane performance for systems based on 2 mm hard-metric connectors. System design engineers working with 2 mm hard-metric-based designs, such as VME or CompactPCI®, can now dramatically increase overall system performance while preserving their existing investment.
3M and Avnet Electronics Marketing are hosting a brief Webcast that will explore the following topics:
• Backplane design challenges and solutions
• UHM features and benefits
• PICMG Standard 2.30 for the J2 connector
• New PICMG 2.30 system slot and peripheral cards
• Support for legacy 2 mm HM system designs
In less than 14 minutes, you’ll gain an understanding of how standard Compact PCI and VME 64x systems can now support multi-gigabit, high-speed serial IO protocols such as SAS, SATA, Rapid IO, PCI Express and Gigabit Ethernet without costly backplane redesigns or forklift upgrades.
The 3M™ 2 mm Shielded Controlled Impedance (SCI) Cable Assembly Development Kit allows engineers to quickly and cost-effectively assess, test and design a high-performance 2 mm SCI cable-to-board solution for applications that require the proven reliability of latch/eject connectors.
Join 3M’s Lindsay Powell for a brief Webcast that will demonstrate how the kit components can be used to test and characterize the signal integrity of 3M 2 mm SCI latch/eject headers and 3M 2 mm SCI coaxial and/or twin-axial cable assemblies.
Other discussion topics include:
• System overview
• SCI and coaxial connector comparison
• Development kit configurations and contents
• Key performance features and target applications
Don’t miss this opportunity to learn how to verify signal integrity, impedance matching and crosstalk performance for high-speed applications and how to design a superior coaxial or twin-axial high speed cable assembly.
Phoenix Contact and Sager Electronics invites you to join us for an exciting Webcast to discuss the COMBICON Power PC 5 Product Family. COMBICON Power PCB terminal blocks are designed to carry current loads of 16A to 125A.
Join Lyndsey Walling from Phoenix Contact for a brief Webcast discussing:
• Market Trends
• High Current Printed Circuit Board Technology
• Terminal Block Options
• Contact Design
• PC 5 Family Capabilities
• Applications
Don’t miss this opportunity to learn how the flexibility of the COMBICON PC 5 Products meet the interconnect requirements of the power electronics industry.
As many design engineers know, there isn’t an easy way to upgrade an existing 2 mm hard metric backplane to multi-gigabit speeds without a costly redesign. So, what can equipment vendors do to help customers supercharge legacy backplane systems without undertaking disruptive forklift upgrades?
Join 3M’s Lindsay Powell for a brief Webcast discussing how 3M™ MetPak™ HSHM connectors can support speeds up to 5 Gbps while leveraging and extending the life of design investments. Discussion topics include:
• Product features
— True signal density: 5-row to 63 signals per linear inch (25 lines per centimeter)
— Ultra-high performance
— Industry standard for hard metric (IEC 61076-4-101)
• Key applications
— Multi-gigabit VME and cPCI
— Military-aerospace
— Telecom
• Design tips and techniques
Don’t miss this opportunity to learn how 3M is providing designers with a cost-effective and pain-free path to higher speeds, low skew and low crosstalk.
ebm-papst Inc. introduces a revolutionary new fan line: the S-Force generation of compact fans. Ranging from 80 mm to 172 mm in size, these extraordinary air movers are the most powerful performance fans on the market! Be one of the first to discover how this new technology will impact various cooling applications. Join ebm-papst™s Mark Shiring as he discusses the range of S-Force products, performance specifications, targets markets and availability of this ground-breaking new family of fans.
Application Reference Materials –
Free Literature Search - App Notes, Design Kits, Eval Boards, Reference Designs, and more. Submit a request for Literature.
Signal Transformer's new catalog details their extensive portfolio of custom and standard power transformers and high frequency magnetics. The 56-page literature features chassis mount and printed circuit mount transformers along with supplemental magnetics, chokes, auto transformers, and three-phase magnetics for the broadest range of applications: - Industrial Controls
- Medical
- Motion Control Power Supplies
- Communications
- HVAC Lighting
- Security
- Test And Measurement
Signal Transformer Inc.516-239-5777
sales@signaltransformer.com
Comprehensive source of inductors, transformers and filters for power, RF, filter and data applications, including new values for 25 product families: - High performance chip and power inductors
- Square air core inductors
- Coupled inductors for SEPIC applications
- Designer's kits
- Order FREE SAMPLES on-line
Coilcraft800-322-2645
- Catalog features split-core and solid-core current transformers, potential transformers, electrical transducers for AC and DC applications
- Signal conditioners, digital and analog panel and switchboard meters
- Current relays/switches, shunts, shunt switches, shorting terminal blocks, multi-function power meters, and accessories
Flex-Core614-889-6152
Columbus, OH 45235
Datasheet and App. Note on new DFC Flat Supercaps, the newest way to extend battery operation and lifespan in portable devices. Depending on application, boosts battery life by 3x. Excellent for pulse and variable demand power applications. - Only 3.9 mm thin!
- Ultra-fast charge/discharge cycling
- Low ESR; Max. 3A current pulses
- RoHS, environmentally friendly -40°C to +70°C
- Choose 0.007F to 0.7F; 2.1 to 12 WVDC
- Long life...500,000 pulses
Illinois Capacitor847-675-1760
Lincolnwood, IL 60712
sales@illcap.com
|
