Laurence Marchini, Editor, writes:
We see from your search that you're looking for information on the term "Varistors",
and we have a large number of manufacturers' news releases and technical articles here on Electronicstalk which will be of interest.
Let me be your guide.
Start with
the news release Varistors protect data lines from
AVX, which we summarised at the time by saying "The multilayer ceramic varistors feature nonlinear, bidirectional voltage-current characteristics similar to back-to-back Zener diodes and an EMC capacitor in parallel".
A couple of weeks before,
we featured the news release Varistors protect CANs from ESD from
AVX: "Multilayer ceramic varistors feature nonlinear, bidirectional voltage-current characteristics similar to back-to-back Zener diodes and an EMC capacitor in parallel".
In January 2008, we covered the news from AVX
concerning its AntennaGuard transient voltage suppressors
- take a look at Transient voltage suppression protects antennas
which says: "AntennaGuard varistors are suitable for protecting the FETs used in miniature RF amplifiers against ESD damage".
Take a look also at the news release from ON Semiconductor, ESD device protects mobile devices,
as well as Passive components come to Northern Europe from Arrow Electronics (UK),
and Design kit explores ALIVH capabilities from Ansoft Europe.
See also:
EMC seminar series starts in South Wales
(February 2007)
The first in a series of EMC seminars will be held on Thursday 29th March 2007 in partnership with Club European in South Wales
United UK presence for Wurth
(January 2007)
Wurth Elektronik has officially been registered as a UK trading company - Wurth Electronics UK
Total coverage claimed for surge cancellation
(December 2006)
Unlike common surge suppressors that use fixed clamping voltage components, WVR-TSC is fully dynamic, as it can operate over the entire 85 to 265V range
Protection devices cut capacitance
(October 2006)
Two new 5V protection devices are the first solid-state devices to reach 0.3pF in capacitance to meet the needs of High Definition Multimedia Interface 1.3 and other high-speed data lines
Diodes don diminutive packaging
(September 2006)
A novel diode package measures a mere 1.0 x 0.6mm with a 0.4mm profile, yet delivers impressive performance
Varistors protect at higher temperatures
(September 2006)
SMD multilayer varistors are well suited for industrial and high-temperature controls for ESD, switching and inductive transient protection on circuit boards and ICs
Varistor arrays save space in handheld protection
(June 2006)
Varistor arrays are ideal for cellphones, HDDs and other portable electronic devices needing smaller devices that can suppress the static electricity of a high-frequency signal circuit
Components catalogues are split into four
(April 2006)
The first in a new series of catalogues covers comprehensive ranges of aluminium and tantalum electrolytic capacitors
Power quality filters tranquilise surge currents
(April 2006)
Nothing less than 100% surge protection with 0% failure should be considered for demanding combat and support applications
Shortform spans resistors, varistors and inductors
(April 2006)
A new shortform product selector and crossreference features a complete line of resistors, varistors and surface mount inductors
CANbus varistors protect three ways
(December 2005)
Surface-mountable CANbus varistors save space by replacing three components typically used to protect against transient voltage spikes
New distributor for resistors and varistors
(November 2005)
Resistor manufacturer Stackpole Electronics has contracted South Atlantic Component Sales to promote and sell its resistor and varistor products in southeast USA
3.3V protection device offers transition from 5V
(November 2005)
Semtech has introduced the uClamp 3304A, a 3.3V electrostatic discharge (ESD) protection device with the performance needed for next-generation portable designs
Varistors are protected for assembly
(April 2005)
The VJ series of varistors incorporates a glass-passivated surface to protect the device from the reactants present during PCB assembly
Tiny diodes provide big ESD protection
(February 2005)
A new series of high-performance, micro-packaged ESD protection diodes is designed for single-line protection of voltage-sensitive components in portable and battery-operated applications
Epcos deal expands to UK and Ireland
(January 2005)
Under a new franchise distribution agreement Arrow will carry the full Epcos range of passive component products throughout the UK and the Republic of Ireland
Surface mount power inductors meet needs
(November 2004)
The NPI and NPIS series of surface mount power inductors from NIC Components meet the needs of the industry wide trend for low voltage, high current circuit operation
Databook tells all on circuit protection
(October 2004)
Raychem Circuit Protection has released the 2004 edition of its industry leading 'Circuit protection databook'
Gothic Components signs to design
(September 2004)
NIC Components Europe has signed a distribution agreement for Gothic Components to design-in and market its complete range of surface mount aluminium electrolytic capacitors
Systems protect military comms from pulses
(July 2004)
Transtector is playing an important role in protecting vital communications links in mobile military systems
Gas discharge tubes expand protection family
(July 2004)
Raychem Circuit Protection has added a range of gas discharge tubes (GDTs) to its circuit protection family
Surface-mount varistors cover the field
(March 2004)
Four new series of surface mount multilayer metal oxide varistors are ideal for protecting a wide variety of electronic circuits and components
Resettable fuses aim for telecomms protection
(January 2004)
HVR250 series PPTC fuses are optimised to provide overvoltage and overcurrent protection for telecomms and networking equipment
Pressed glass spacers stand the heat onboard
(December 2003)
Pressed glass spacers used to position and isolate electrically sensitive components such as capacitors and varistors during wave soldering are available from Morgan Advanced Ceramics
Passives guide features 1300 new products
(November 2003)
Farnell InOne has added 1300 new products to its already leading range of passive components with the launch of its 'Passive components new product guide' in the UK and Ireland
Compact chip varistors replace TVS diodes
(October 2003)
The LVS series is metal oxide base chip varistor for transient voltage suppression
News on the 0201 type multilayer chip varistors from TDK Electronics Europe
(October 2003)
TDK has begun volume production of the industry's first 0201 type multilayer chip varistor
Varistors handle more power in less space
(September 2003)
Epcos has strengthened its EnergetiQ range of high-quality disc varistors with the addition of the Q14/Q20 series
Overcurrent specialist turns to overvoltage
(August 2003)
The ROV series of metal-oxide varistors (MOVs) can provide overvoltage fault protection on a wide variety of power systems
Thermistors and varistors for compact protection
(April 2003)
Microtherm has new ranges of surface mount NTC thermistors and chip varistors
Resettable fuses are fit for telecomms protection
(March 2003)
A new series of resettable fuses specifically designed to protect telecomms equipment against overcurrent and overvoltage conditions has been introduced by Wickmann Components
Square varistors for space-efficient protection
(February 2003)
Designers of compact power supplies for portable applications can now specify a varistor that offers the same surge protection as a disk device that is half as big again in area
News on the Voltage-dependent metal-oxide varistors from Dubilier
(November 2002)
Dubilier has a new broad range of voltage-dependent metal-oxide varistors, designed to protect equipment and sensitive components against transient voltage spikes
Varistors provide bidirectional protection
(March 2002)
Epcos has a new series of multilayer metal-oxide varistors (MLVs)