Resistors and Capacitors
Vishay Intertechnology Launches Compact Aluminum-Housed Resistors
Vishay Intertechnology today released the VACR, a series of compact aluminum-housed resistors with power ratings up to 500 W. The new devices will serve in industrial, motor drive, railway, renewable energy, and other high-power systems as braking, chopper, pre-discharging, and voltage-limiting resistors, among other applications.
Vishay Foil Resistors Video Demonstrates Accuracy Of FRSM Z1-Foil Chip Resistors
Vishay Precision Group announce that its Vishay Foil Resistors brand has released a new video that compares the accuracy of precision thin film resistors with the new generation of VFR COTS resistors based on Z1-Foil technology. Using the example of a circuit built around Intersil's ISL28617 precision instrumentation amplifier, the short video shows how an increase in ambient temperature causes a TCR mismatch in the thin film resistors (TCR of 5 ppm/ °C), resulting in an error in the output of the amplifier circuit while having no effect on the Bulk Metal Foil resistor.
Vishay Announce Axial Cemented Wirewound Safety Resistor
Vishay Intertechnology have today announced the release of a new axial cemented wirewound safety resistor specially designed to ensure safe and silent fusing operation during overload conditions in electric appliances, energy meters, and power supplies. Featuring a fusing time of < 30 s for a 45 W overload and high surge voltage capability, the new Vishay Draloric AC03..CS offers a special cement coating for immediate interruption without flame and explosion when mains voltage (220 Vrms) is applied.
KOA Speer Announces Industry's First 1W 0805 Metal Plate Current Sense Resistor
KOA Speer Electronics has today announced the introduction of the TLR2A, a 1Watt, 0805-size metal plate resistor. The new TLR2A resistor offers the ability to use a smaller component, while maintaining a high power rating.
ARCOL High Power Resistors Offer Unequalled Pulse Power Capability
UK based ARCOL Resistors has today announced that it is extending its HS range of high-power aluminium-housed resistors to include a low profile version offering an unequalled balance of pulse power capability versus volume. ARCOL HS power resistors are manufactured using a wire-wound design to maximise their high pulse capability and are available in 10 standard power ratings from 10 to 600 watts.
TDK Announces MKP Film Capacitors With Reduced Volume
TDK Corporation presents EPCOS MKP film capacitors of the B3267xPx series with a significantly reduced volume. For example the type with a capacitance of 1 µF and a rated voltage of 450 V DC has dimensions of only 8.0 x 17.5 x 13.0 mm³ thanks to a high capacitance density with a lead spacing of 10 mm. This corresponds to a volume reduction of around 40 percent compared with the predecessor type with a lead spacing of 15 mm.
Vishay Unveil Surface-Mount Aluminium Capacitors Up To + 150 °C
Vishay Intertechnology have introduced a new series of surface-mount aluminium capacitors that combines a high temperature range to + 150 °C with very low impedance, high ripple current, and long useful life. For increased processing flexibility, the Vishay BCcomponents 160 CLA devices meet the rigorous IPC/JEDEC J-STD-020 soldering guidelines for severe reflow conditions.
KEMET Introduces New True Fail Open Tantalum Capacitor
KEMET Corporation has introduced its new T496 Hi-Rel Fused Commercial-Off-the-Shelf MnO2 Series of tantalum surface mount capacitors. These devices are ideal for use in high reliability applications where a capacitor failing short will disrupt the overall performance of the system. The internal fuse in the capacitor results in a fail open condition.
KEMET Further Expands Its C0G And X8R Flexible Termination Portfolio
KEMET Corporation today announced the expansion of its Flexible Termination product portfolio in C0G and Ultra-Stable X8R dielectrics. KEMET has extended case size offerings as well as capacitance values in both dielectric platforms.
Vishay Extends Wide Terminal Thin Film Chip Resistors With Ohmic Values Down to 1 Ohm
Vishay have announced today that it has extended its MCW 0406 AT Precision series of wide terminal thin film chip resistors with ohmic values down to 1 Ohm, the industry's lowest for such a device in the compact 0406 package. The resistors combine their low ohmic values with precision tolerance of ± 0.1 % and precision TCR of ± 25 ppm/K.
DMTL Announce High Stability, Extremely Low TCR Metal Film Resistors
DMTL announces Viking Tech's CSR Series of metal film precision resistors that will find wide application in telecoms, medical and test and measurement instrumentation as well as automotive systems thanks to AECQ200 qualification.
KOA Enhance Resistance Range For 01005-RK73B1F Thick Film Chip Resistors
KOA Speer Electronics has recently expanded the range of resistance values of their smallest size within the RK73B1F series of general-purpose thick film chip resistors. The new value range, which affects the 01005 (1F) size, has been expanded to 4.7 Ohm ~ 1M Ohm for both 2% and 5% tolerances. The RK73B1F chip resistor, which is 55% smaller than the 0201 size, features a power rating of 0.03W and a TCR up to +300ppm/°C.
Stackpole releases the SM8035 for High Energy Pulse Applications
Stackpole Electronics announces the release of the SM8035 4 watt molded SMD wirewound resistor. The robust wirewound element is able to withstand much higher surge energy than other film surge resistors. The SM8035, in a 1 ohm value for example, has the energy handling capacity of 43.3 Joules.
EMCO Announce Input Bypass Capacitor Application Note
EMCO have recently released this new Application Note focusing on the use of an input bypass capacitor. This Application Note applies to all EMCO Product Series and describes the optional use of an input bypass capacitor for improved performance.
Axial Cemented Wirewound Resistors With High-Voltage Surge Withstanding
Vishay has today introduced a new series of axial cemented wirewound resistors that are the industry's first to offer a customized high-voltage surge withstanding capability up to 12 kV. Designed to limit in-rush currents during high-voltage surges, the Vishay Draloric devices are optimized for power supplies in electronic meters, industrial and home appliances, and electronic ballasts.
Stackpole's Precision Thin Film Chip Resistor Arrays Offer Tolerances as Low as 0.1%
The RAVN Series from Stackpole is a thin film based chip array designed for applications with tight tolerance or tight TCR requirements. The RAVN Series offers four resistive elements in a package measuring 1.6mm by 3.2mm with resistance values from 100 ohms up to 33K ohms in a 0.1% tolerance. This part can also achieve 10 ppm TCR for a limited resistance value range.
KEMET Introduces New True Fail Open Tantalum Capacitor
KEMET Corporation today introduced its new T496 Hi-Rel Fused Commercial-Off-the-Shelf (COTS) MnO2 Series of tantalum surface mount capacitors. These devices are ideal for use in high reliability applications where a capacitor failing short will disrupt the overall performance of the system. The internal fuse in the capacitor results in a fail open condition.
Ohmite Announce 5W SMD Wirewound Resistor
By using very simple idea from their heatsink designs, Ohmite has developed an SMD wirewound resistor which meets a 5W plus power rating, providing a solution to a problem which has dogged resistor manufacturers for years.
Murata Introduce High peak Current Electrical Double-Layer Capacitors
Murata introduced a high peak current electrical double-layer capacitor series with a profile of 2.5mm±0.2mm. The newest EDLC series from Murata also features lowest resistance (40mOhm to 60mOhm) and stable temperature characteristics, enabling it to be charged and discharged frequently over the operating range of -30°C to +70°C.
AVX adds N1500 super dielectric option to high-voltage MLC radial leaded capacitor series
AVX has added an N1500 super dielectric option to its high-voltage, multilayer ceramic, radial leaded capacitor series. An extension of the SV Series, the new N1500 super dielectric capacitors take up less board space and offer higher capacitance values than comparable C0G dielectric capacitors and are ideally suited for applications including snubbers in high-frequency power converters, resonators in SMPS, AC line filtering, and high-voltage coupling/DC blocking.
Microprecision Electronics adds Surface Mount Resistors to Product Line
Microprecision Electronics SA has today announced that it is adding surface mount precision foil resistors to its product line. Through its subsidiary Wilbrecht LEDCO, Microprecision, has been a manufacturer of precision Bulk Metal Foil resistors based on Vishay Precision Group technology for over 15 years. Microprecision is responding to the growing demand for surface-mount products by making models VSM and VSMP (Z-Foil) available to its customers.
Vishay Intertechnology Launches New Precision MELF Resistor Sample Kits
Vishay Intertechnology is now offering laboratory sample kits that put popular values for its precision MELF resistors at designers' fingertips to simplify prototyping and speed time to market for a wide range of electronic systems.
TDK Multilayer Ceramic Chip Capacitors Enable High-density Mounting
TDK Corporation has developed the CJA series of TDK SRCT capacitors in case size 0603 (EIA 0201). Compared to existing multilayer ceramic capacitors of the same case size, the mounting footprint has been reduced by 50 percent. In this TDK-developed design with bottom terminals, a solder resist prevents wetting of the face and side areas of the MLCCs with solder.
AVX unveils new Super X7R SMM capacitors
AVX has recently extended its range of SM SMPS capacitors to include the new Super X7R SMM capacitor product line. Super X7R dielectric capacitors offer high dielectric constant characteristics and an extended capacitance range in a small case size. Main target applications range from high end DC/DC converters to general power supplies, telecom networks, snubbers, aerospace instrumentation panels, hybrid power applications and more.
New resistors from Ohmite can handle the heat
Ohmite's new IS Series of heatsinkable, thick film, planar power resistors meet the requirements of designers seeking a compact, low profile solution to demanding applications such as dynamic motor braking.
Aluminium electrolytic capacitors: Snap-in series with very high ripple current capability and longer useful life
TDK Corporation offers two new 105 °C snap-in series of EPCOS aluminium electrolytic capacitors with a very high ripple current capability and a longer useful life. The latter is 5000 h for the B43545 series. These capacitors are available with rated voltages of 400 V DC and 450 V DC as well as capacitances of 82 µF to 820 µF.
Low Ohm Thick Film Flat Chip Resistors from KOA
KOA's UR73D-series thick film shunts are designed for current detection in power supplies, motor control and industrial automation applications. The special face down construction (mounting of the resistive element on the lower face of the component) yields low T.C.R. ratings for this series. The resistors are designed for operation from -55°C to +125°C.
Vishay Intertechnology Releases New Power Metal Strip Battery Shunt Resistor
Vishay Intertechnology today announced a new Power Metal Strip battery shunt resistor featuring a molded enclosure with a four-pin connector. Providing easy PCB connection to the shunt resistor assembly, the WSBM8518 allows design engineers to focus on circuit development instead of PCB connection issues.
Syfer unveil chip capacitors for use in MRI scanners
Syfer Technology has announced the availability of an innovative range of leaded non-magnetic, high voltage, chip capacitors suitable for use in MRI scanners. There is a trend in scanning equipment, such as MRI systems, to increase the magnetic field in order to provide higher resolution images.
KEMET Electrolytic Snap-in & Screw Terminal Capacitors at electronica 2012
KEMET has announced that it has featured its electrolytic snap-in and screw terminal capacitors last week at electronica 2012 in Munich, Germany. "With the recent integration of the KEMET Foil Manufacturing plant in Tennessee and development of the new automated production facilities in Portugal, KEMET is now, more than ever, able to offer high quality snap-in and screw terminal electrolytic capacitors at competitive prices and lead times," stated Werner Lohwasser, KEMET Vice President of Electrolytic and Filter Business Unit.
Super X7R SMM Stacked MLC Capacitors from AVX
AVX has expanded its range of surface mount switch mode power supply capacitors to include the new SMM series stacked MLC capacitors, which incorporate the "High K" Super X7R dielectric. Featuring high dielectric constant (K), the SMM series capacitors provide an extended range of capacitance values in a small case size, freeing up valuable board space.
KEMET Features Latest Tantalum Capacitors at Electronica 2012
KEMET Corporation today announced it is featuring a variety of its most recent releases of tantalum capacitors this week at Electronica 2012 in Munich, Germany. "Electronica is the ideal venue in which to showcase KEMET's most recent developments in tantalum technology, which encompass a wide range of capabilities and applications," stated Cristina Mota Caetano, KEMET Technical Product Marketing Director, Tantalum Business Group.
StackiCap High CV MLCC Range launched at Electronica 2012
The world-wide launch of Syfer's latest new product family, set to revolutionise the world of large-size high voltage X7R Multilayer Chip Capacitors, takes place at Electronica 2012 in Munich. Called StackiCap, these X7R devices dramatically increase the maximum capacitance values now possible in larger case sizes and high voltages, thereby delivering the potential to significantly reduce printed circuit board real estate.
AVX exceeds 100V milestone with new high voltage tantalum polymer SMD capacitors
AVX is now exceeding the 100V milestone - which is almost twice the rated voltage of similar products on the market today - with the introduction of its new high voltage TCJ series 6.8µF/100V (V case) and TCJ series 3.3µF/125V (D case) tantalum polymer SMD capacitors.
New generation of multi-anode and hermetically sealed SMD tantalum hi-rel capacitors from AVX enable payload reduction
AVX Corporation has recently developed two new series of TES molded tantalum and TCH hermetically sealed SMD tantalum polymer hi-rel capacitors offering very low ESR, high capacitance and high voltage. The improved construction of the new capacitors allows the devices to be used for European aerospace applications and offers a significant payload reduction for power supplies.
Kemet Ceramic High Voltage Bulk Capacitance Solution showcased at electronica 2012
KEMET Corporation today introduced its new KEMET Power Solutions (KPS) High Voltage stacked capacitors in X7R dielectric at Electronica 2012 in Munich, Germany. KEMET's KPS Series High Voltage devices utilize a proprietary lead-frame technology to vertically stack one or two multilayer ceramic chip capacitors (MLCCs) into a single compact surface mount package.
Capacitors: CeraLink – a new technology for DC link circuits
TDK Corporation presents the EPCOS CeraLink, an innovative DC link capacitor for frequency converters. CeraLink is based on a PLZT ceramic material and covers a capacitance range from 1 µF to 100 µF at a rated voltage of 400 V DC. Another type has a rated voltage of 800 V DC and a capacitance of 5 µF.
Aluminum electrolytic capacitors: Extended rated voltages for industrial applications
TDK Corporation has extended the range of EPCOS aluminum electrolytic capacitors by types with higher rated voltages. For the screw terminal types in the new B43700* and B43720* series, the previous rated voltage of 550 V DC has been raised to 600 V DC. These capacitors cover a capacitance range from 1200 µF to 6800 µF and are designed for temperatures up to 85 °C.
Stackpole’s RNCH Series for High Power and High Humidity Applications
The RNCH is a high power version of Stackpole's award winning RNCS series of anti-corrosive passivated nichrome thin film chip resistors. The RNCH offers the power rating of the RNCS0805 in the 0603 size and similar power upgrades for the 0805 and 1206 sizes.
Short-term Supercapitor Benefits
George H. Barbehenn, Senior Applications Engineer with Linear Technology, investigates in this ES Design magazine article, the use of supercapacitors (or capacitors with up to 100F of charge storage) to bring benefits to power supply ride-through systems.