Circuit & System Protection


Latest Articles

Better filtering in less space
21 April 2004
Better EMI filtering in less space is claimed to be possible with new arrays of Murata common mode choke coils. Two high impedance filters in an EIA 1206 package, only 1,15 mm high, are achieved by thin-film ...

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ESD protection diodes for high speed applications
7 April 2004
Royal Philips Electronics' new series of electro static discharge (ESD) protection diodes have a very low diode capacitance, ultra low leakage current and reverse stand voltages of 3,3 V and 5,0 V - all ...

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Reliable and safe - protection components: Part III
7 April 2004, Electrocomp
Epcos, a world leader in passive components, is one company that has years of experience, competence and innovation in developing and designing protective components such as gas-filled surge arresters, ...

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Smaller safety capacitors
7 April 2004, Information Security
Murata's revision of safety recognised leaded capacitors reduces the number of different types needed, increases mounting density and introduces what it says is the world's smallest class Y1 capacitors. Values ...

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Surge protection for terrestrial, cable and satellite signals
7 April 2004, Phoenix Contact
To provide suitable surge voltage protection for the wide range of end devices and installation possibilities used in consumer electronics, Phoenix Contact has expanded its adapter connector and socket ...

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Metal oxide varistors
7 April 2004, Electrocomp
Supprescraft has specifically developed metal oxide varistors to meet the requirements of TRMSCAAP 2 Rev 2:1994 'Specification for indoor arresters for protection of electricity dispensers'. These varistors ...

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Telecom Circuit Protection Selection Guide
7 April 2004, Technical Literature
Bourns guide is divided into three sections encompassing multifuse resettable fuses, TISP thyristor surge protectors, gas discharge tubes, surge line protection modules and Telefuse Telecom fuse product ...

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Four EMI filters on one chip
24 March 2004
EMI filtering of general and high speed signal lines is now easy says Murata, with its BLA2AA range of four element arrays of ferrite bead inductors that are 2 mm by 1 mm and only 0,5 mm high. Impedance ...

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'Brute force' panel protection
24 March 2004
Where brute force protection is required, Citel says that its economical M160 Series AC surge protector can be used. This low profile device provides protection for all critical modes and is housed in ...

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Resettable PTC protectors now smaller
24 March 2004, Altron Arrow
Littelfuse's new series of surface mount positive temperature coefficient (PTC) resettable circuit protection devices, the 1206 Series, is one-third the size of the 1812L series, previously its smallest ...

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Block filters for single-phase applications up to 50 A
24 March 2004, Retron, Products & Solutions
Schurter has extended its filtered power entry module range with single-phase block filters. With this extension it supports customer requirements for power supplies from 0,5 up to 50 A at 250 V and provides ...

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Surge voltage protection remote I/O with surge voltage protection
24 March 2004, Phoenix Contact
Many signal transmissions are designed as EEx ia current circuits. The Termitrab TT-EX(I)-24DC protection devices as well as the modular terminal blocks for such areas have blue housings. With powerful ...

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PPTC thermistors for power over Ethernet
24 March 2004
In September 2003, the IEEE published the IEEE 802.3AF standard that defines the specifications to deliver power over standard Ethernet cables. The Power over Ethernet (PoE) standard has facilitated the ...

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High density T1/E1 modules
24 March 2004, ASIC Design Services
HALO's new SIP Tele-Pro series of high density T1/E1 modules have been designed to provide the network engineer a complete UL/EN60950 recognised solution meeting the requirements of GR1089 for lightning ...

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High temperature machine screw insulators protect transistors and discretes
24 March 2004, Vepac Electronics, Products & Solutions
Designed to protect popular transistors and discretes, Bivar offers three different styles of shoulder insulators made from a UL rated 40% glass-filled polyphenylene sulfide (PPS). The insulators provide ...

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Low capacitance thyristor surge protection device
24 March 2004, News & Events
Pan Jit enables faster data transmission speeds by offering a family of thyristor surge protective devices (TSPD) with very low typical capacitance values. Protection is critical to avoid latch-up or ...

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3-phase voltage monitor relay
24 March 2004
Citels' VM230/TRI is designed to continuously control a 3-phase 230/400 V network in order to detect any kind of AC failures that may disturb or destroy sensitive equipment. Some of these are overvoltages, ...

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Reliable and safe - protection components: Part II
24 March 2004, Electrocomp
Protection of electronic equipment against failure is a critical market demand and an obligation to consumers at the same time. Taking years of experience, competence and innovation to always offer reliable ...

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SMD thermistors claimed smallest
24 March 2004, Access Control & Identity Management
Murata claims its Posistors are the smallest in the world at 0603 size. For over-current prevention and overheat sensing, these positive-going thermistors offer a very rapid resistance increase when the ...

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1 GHZ noise filter
24 March 2004
A new 0603-sized chip ferrite bead from Murata has high impedance from 300 MHz to several GHz and much reduced DC resistance, making it ideal for suppressing noise well into the GHz band. With DC resistance ...

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