Circuit & System Protection


Latest Articles

Intelligent 19-inch fan trays
6 August 2008, Vepac Electronics
Verotec has extended its range of 19-inch 1U standard fan trays. Two depths are available, a 250 mm deep unit fitted with three fans and a 350 mm deep unit with six fans. All sizes are offered with a ...

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Dry packaging bags
23 July 2008, Altico Static Control Solutions
Surface mount technology has created devices which are increasingly sensitive to the damaging effects of moisture, corrosion and ESD. Actum Electronics' ESD product division, Altico, supplies a range ...

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EMI filters now with metric threads
9 July 2008, Electronic Industry Supplies
Spectrum Control has introduced a new series of feed-through filters with metric thread sizes. This new range of EMI filters offers M3 x 0,5 thread sizes with feed-through capacitors and M4 x 0,7 versions ...

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Broadband SAW filter for cable modems
9 July 2008, Electrocomp
Epcos has introduced the B1642 SAW filter for broadband TV and Internet access via cable modems. It has been developed specifically for the new international DOCSIS 3.0 standard (Data Over Cable Service ...

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ESD protection for USB 2.0
9 July 2008
STMicroelectronics has met the complete ESD (electro-static discharge) protection requirements for High-Speed USB, including Vbus, in a QFN-6 device measuring 1,0 x 1,45 x 0,65 mm. With 0,85 pF maximum ...

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EMC filters offer high attenuation
9 July 2008, Electrocomp
Epcos has extended its 3-line EMC filters with a high-performance series for frequency converters. It is distinguished by outstanding attenuation properties that offer advantages especially with long ...

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Chip ceramic thermistors protect power supplies
9 July 2008
The latest addition to Murata’s PRF family of chip ceramic thermistors is the PRF18xx5RB series, designed for overheat detection of power FETs in point of load (POL) DC-DC converters and other power supply ...

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EMC power line chokes for high currents
9 July 2008, Electrocomp
Epcos has extended its range of EMC power chokes with new types designed for high currents. Its double power line chokes now attain current capabilities of up to 54 A. The new B82725S* and B82726S* series ...

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Sub-1 pF multilayer varistor
9 July 2008, Altron Arrow
AVX has expanded its AntennaGuard series of low capacitance multilayer varistors (MLVs) to include a sub-1 pF version. Designed to provide a one chip solution for protecting high speed digital interfaces, ...

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Low profile EMI filters
11 June 2008
Vishay has released six new four-, six-, and eight-channel EMI filters in ultra-compact LLPXX13 leadless packages. With a low profile of 0,6 mm, the new VEMI filter series is designed to save board ...

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Protecting loudspeaker crossover networks
11 June 2008
Loudspeakers and amplifiers are manufactured by numerous companies building one or both of the systems. Different design parameters cause impedance mismatching which can be damaging to speakers. Over-current ...

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Addressing enclosure cooling on three levels using water
11 June 2008, Actum
In modern electronics systems, where the ambient temperature lies above 55°C or a high performance per area or volume is demanded, water cooling is often the only solution. Water has a specific heat capacity ...

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USB port protection considerations
11 June 2008
In today’s ever-expanding world of information technology, the priority becomes to create devices carrying more information in a smaller package. Not only are computers becoming more compact, they are ...

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Noise filter product offering expanded
11 June 2008, Sivan Electronic Supplies
Cosel has added four new models to its range of noise filter products. The NBH series is designed for ultra-high attenuation of common-mode noise from 10 kHz to 10 MHz. The two-stage filter is designed ...

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New ESD protection components
28 May 2008
Bourns has released two new products in its ChipGuard ESD protection range. The new CG0402MLU/CG0603MLU was designed with an ultra low capacitance, and the CG0805MLA-5,5ME and CG0805MLA-18KE devices provide ...

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Protecting USB OTG ports
14 May 2008
After the success of the USB 2.0 standard, the USB Implementers Forum developed a complementary standard called USB OTG (on the go). USB OTG was developed to allow peripheral devices to communicate ...

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Host-side cryptographic security solution
14 May 2008, Altron Arrow
Atmel's new CryptoCompanion chip offers plug-and-play, host-side cryptographic security for embedded systems that are prone to firmware theft, the violation of licensing agreements and/or product counterfeiting. ...

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Extended range of EMC output filters for motors
30 April 2008, Electrocomp
Epcos' SineFormer series of EMC output filters has been extended by a range designed for applications up to a rated voltage of 760 V. The new B84143V*R290 spectrum of filters is available in current stages ...

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Range of cooling fans
30 April 2008
Bi-Sonic manufactures a wide range of high quality cooling fans aimed at solving heating problems in computers, machines, power supplies, ventilation and many other technical applications. The company's ...

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Mechanical design tips for EMI shielding
2 April 2008, Electronic Industry Supplies
Nowadays every company is affected by CE/EMI demands. The use of electronics increases, as well as the operating frequencies. Therefore, radiation and immunity has to be taken into account in an early ...

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