Laurence Marchini, Editor, writes:
We see from your search that you're looking for information on the term "Varistor", 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 Ceramic capacitors suit EMI filtering from Syfer Technology, which we summarised at the time by saying "Syfer's discoidal multilayer ceramic capacitors can be installed directly into filters, onto bulkheads, hybrid circuits or onto printed circuit boards". 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 July 2007, we covered the news from TDK Electronics Europe concerning its AVRM0603C6R8NT101N - take a look at Compact varistor reduces voltage which says: "Multilayer chip varistor boasts the industry's lowest varistor voltage for a device of its type".
Take a look also at the news release from Kyocera Corp, EMI filters use novel varistor material, as well as Varistors protect at higher temperatures from Stackpole Electronics, and Fuse and MOV come together to protect on the line from Raychem Circuit Protection.
See also:
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
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
Stackpole signs Electronic Representatives (March 2006)
Stackpole Electronics has hired Electronic Representatives to promote and sell its resistor and varistor products in Ohio, Michigan, Western Pennsylvania and West Virginia
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
Transformer based filtering banishes the ghosts (September 2005)
Now electronic power conditioners can provide 'computer grade' power at the same price point as surge protection alone, copier dealers can cost-effectively reduce service visits by as much as 50%
Circuit protection range spans all applications (April 2005)
TTI and Bourns have teamed up to provide customers with a huge range of circuit protection devices
Solid-state relays handle more current (October 2004)
Omron has extended its popular G3NA series of compact solid state relays (SSRs) with two new high current models, offering 75 and 90A outputs
Solid-state relay drops in for e-mech types (May 2004)
Fujitsu Components Europe has expanded its relay offering for the industrial control and appliance markets with the addition of an ultraslim solid-state device
Terminator suppresses transients from earth (January 2004)
The Ground Transient Terminator is the world's first UL approved filtering device to safely install in series with the ground line of electronic equipment to completely eliminate ground transients
Compact chip varistors replace TVS diodes (October 2003)
The LVS series is metal oxide base chip varistor for transient voltage suppression
Multilayer chip varistor protects portable devices (October 2003)
TDK has begun volume production of the industry's first 0201 type multilayer chip varistor
Diodes provide fast-acting two-way protection (October 2003)
The CeraDiode uses innovative multilayer varistor technology to provide bidirectional protection in one component, replacing a dual transient voltage surge or zener diode array
An SSR for all reasons (September 2003)
Reliability, compact construction, ease of use, and virtually unlimited life are among the key benefits offered by the wide range of solid-state relays from Omron Electronics
CVTs protect from damaging surges (August 2003)
When Scrimsign Micro Electronics found that its award-winning signs were experiencing unforeseen failures, the company's research department concluded it was caused by transients in the power supply
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
Antenna protector safeguards basestations (January 2003)
The CN-UB-280DC coaxial antenna protector is the latest addition to the Trabtech range of surge protection products for cellular basestations and similar telecomms installations
Compact protection module mounts DIN rails (August 2002)
Advance Galatrek has a new DIN-rail-mount range of transient voltage surge suppressors (TVSS)
USB varistor replaces multiple diodes (April 2002)
Future Electronics and AVX have launched a new multilayer surface mount 'USB varistor'
Varistors provide bidirectional protection (March 2002)
Epcos has a new series of multilayer metal-oxide varistors (MLVs)
Suppression on the rails (January 2002)
Advance-Galatrek's new StrikeSafe DIN-rail compatible TVSSs are designed to clip directly onto the universal DIN-rail mount format tracking used in many control and distribution cabinets
Why all TVSSs are not the same (December 2001)
Mick Burgoyne, Chief Engineer at Power Quality Management specialist Advance-Galatrek examines the technology behind one of the most critical - and yet neglected - power chain devices
Databook covers metal oxide varistors (October 2001)
Epcos has released a new databook for its comprehensive range of SIOV metal oxide varistors
Plug-in hot swap TVSS technology on new TPUs (June 2001)
Advance-Galatrek has just unveiled its latest StrikeSafe wall mount Transient Protection Units (TPUs), featuring unique hot-swap plug-in technology
Exclusive UK and Ireland agency for Keko Varicon (June 2001)
VTM (UK) has been appointed the UK and Ireland agent for the circuit protection products from Keko Varicon in Slovenia, which has a history dating back 45 years as the former Iskra organisation
Wall-mounted transient protection units (June 2001)
Advance-Galatrek has launched a new range of StrikeSafe wall-mounted transient protection units (TPUs), using hardwired DIN rail modules for compact convenient transient surge suppression
Solid state relays keep installation simple (November 2000)
The new RS and RM 'hockey puck' style solid state relays from Carlo Gavazzi are designed for resistive, capacitive and inductive loads up to 100AAC rms and 600VAC rms
TVS diode protection protects relays as standard (August 2000)
In order to ensure that its range of Solid State Relays are protected from over voltage, Crydom International Ltd has introduced TVS diode protection on its range of SSR products