Circuit & System Protection


Latest Articles

Modular lightning current and surge arresters
31 October 2007, Surge Technology
Dehn's modular Red/Line multipole DEHNventil M combined lightning current and surge arresters are designed for protecting low voltage installations and terminal devices against surges, even during direct ...

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Devices protected against ESD transient over-voltages
31 October 2007
Expanding its EOS and ESD protection portfolio, STMicroelectronics has released its 5 V and 12 V low forward voltage Transil protection devices, the Transky SMTY5.0A and SMTY12A. The Transky is designed ...

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Protection solution for line card access switches
31 October 2007
Solid-state hook switches or LCAS (line card access switches) have been deployed as a space-saving solution in telephone exchanges since the mid 1990s. These devices are a combination of electronic switches ...

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'World's smallest' 2in1 SAW filter
31 October 2007, Electrocomp
Epcos has developed a prototype 2in1 SAW filter with a surface area of just 1,7 mm x 1,3 mm and an insertion height of only 0,4 mm. The filter is designed for the GSM bandwidths of 850 and 900 MHz, with ...

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Rocker switch with integrated circuit protection
31 October 2007
The SS-001 from Approach Technologies is a rocker switch which also provides circuit protection for applications such as motors, transformers, household and office machines, instrumentation, surge protectors ...

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Active filter protects DC-DC converters in harsh environments
17 October 2007, Vepac Electronics
XP Power has released a new 500 W active filter unit for use in harsh electrical environments. The DSF500 is designed to protect DC-DC converters from the surges, spikes and ripples that are typically ...

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Gas discharge tube for high bandwidth solutions
17 October 2007
Bourns has released a new surface mount 2-electrode GDT surge protection device, designated the 2055. These low-cost, miniature GDTs are ideal for board level protection of high-bandwidth applications ...

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Thermal interface pads provide low thermal resistance
3 October 2007
MH&W International now supplies Keratherm 86/82, a high tensile strength, thermal interface material (TIM) that improves heat transfer from ICs and other components to their heatsinks, and provides durability ...

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Extended ESD and EMI filter range
3 October 2007
Bourns has added the 2FAP-M12R to its ESD and EMI filter family in a DFN-12 package. The 2FAP-M12R offers portable electronic designers with six ESD and EMI filters each with a 220 MHz filter cutoff frequency, ...

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Compact 3-line power line filter for machinery
3 October 2007, Electrocomp
With the new B84143A*R106 series of three-line power line filters, Epcos has introduced a compact, lightweight and cost-effective standard solution built especially for the requirements of machinery. ...

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New family of tiny resettable fuses
19 September 2007
The new F-PSMF Series of multifuse polymer PTC resettable fuses from Bourns consists of 2012 size surface mount devices which are now Bourns' smallest resettable fuses and claimed to be the smallest PTCs ...

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Advanced new output filter for frequency converters
5 September 2007, Electrocomp
With its new SineFormer, Epcos is introducing a new output filter technology for frequency converters. In contrast to conventional filter topologies, the new SineFormer simultaneously converts the phase-to-phase ...

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Over-voltage protection regulator and inrush current limiter
8 August 2007
Linear Technology's LT4356 is an over-voltage protection regulator, with over-current protection and inrush current limiting for high availability systems. In applications where electronic systems must ...

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Compact EMC filters for medical applications
25 July 2007, Electrocomp
The new, compact 2-line filters of Epcos' SIFI-F (B84111F*M) series are now also available in medical versions. Not only do they offer all the advantages of the standard version, they also boast an extremely ...

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World's smallest BAW filter
25 July 2007
In the market for GSM capable products, modularisation of RF (radio frequency) components is continually progressing, not least of all filters. Currently, multipackage modules containing RF IC plus ...

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150 amp contactor for AC or DC
11 July 2007, Denver Technical Products
Gigavac has released its new multipurpose sealed contactor for switching from 12 to 750 volts AC or DC at 150 amps.    Important features of this new contactor are:    * Chassis level UL508 sized power ...

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Extended-temperature Gigabit discrete isolation transformer modules
11 July 2007
Pulse has introduced a dual-port and the first quad-port extended-temperature gigabit discrete isolation transformer modules. With an operating temperature range of -40 to 85°C, these modules are well-suited ...

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AC and DC feedthrough EMC filter for up to 300 A
11 July 2007
Spectrum Control has developed a comprehensive range of AC and DC feedthrough EMC filters achieving performance from 150 kHz to 10 GHz. Circuit styles of Pi and C are included in the series which offers ...

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Regulators offer improved system reliability
27 June 2007, Altron Arrow
According to Intersil, the ISL6422B and ISL6423B LNB (low noise block) supply and control voltage regulators, optimised for satellite set-top boxes, are the industry's first to use an I²C interface to ...

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New protection diode with ultra low capacitance
13 June 2007, Altron Arrow, EBV Electrolink
The new VCUT0714A-02Z BiAs (bidirectional asymmetrical), single-line ESD protection diode from Vishay offers extremely low capacitance in the very small SOD923 package. With a compact 0,6 mm x 1 mm footprint ...

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