Circuit & System Protection


Latest Articles

Protector for telecom applications
2 November 2005, Communica
With the new Protector 950, Wickmann has expanded its range of overcurrent protection components for telecommunication applications. Designed to protect telecom lines against overcurrents, the lead-free ...

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Design consequences of geometry 'shrinks'
2 November 2005, Tempe Technologies, Altron Arrow
As we all know, the process geometries of both digital and analog integrated circuits are continually shrinking - with the clear advantages of lower power requirements, silicon areas and prices. However, ...

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Dual ESD suppression devices in low-profile package
19 October 2005
ON Semiconductor has introduced the μESD dual series of high performance, micro-packaged electro-static discharge (ESD) protection diodes. The μESD dual series is designed to protect voltage sensitive ...

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Lightning arresters
19 October 2005, Amphenol International
In regions of high levels of lightning, basic spark-gap (carbon block or gas tube) protectors installed in buildings are inadequate to protect modern electronic equipment. Supplementary lightning protectors ...

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Protection IC has integrated battery disconnect
19 October 2005, CST Electronics, Electrocomp
Maxim has introduced overvoltage protection controllers that have an integrated battery disconnect switch with a current-limit range of 0,525 A to 1,1 A, depending on which part is used. The MAX4880-MAX4884 ...

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High-speed varistor a drop-in replacement for TVS diode
5 October 2005, Electrocomp
Epcos has extended its CeraDiode CDS4 series with a 3 pF type that has the same solder pad dimensions (2,5 x 0,8 mm) as a TVS diode in a SOD 323 package. The new type CDS4C16GTH can therefore be used ...

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Protection against transients
5 October 2005, Electrocomp
Yageo has introduced a new range of surface-mount multilayer chip varistors (MLV) under its Phycomp brand. The products are available in case sizes 0603 and 0402, with a working voltage range from 5,5 ...

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Filters for high-end power supplies
5 October 2005, Retron
High-end power supplies for distributed systems require high safety against disturbance emission and imission. Schurter's FSW is designed expressly for this purpose. It is a compact two-stage line filter ...

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SMD fuse block accepts dual-sized cartridge fuses
5 October 2005, Retron
Schurter has extended its OGD series to include a version for SMD mounting. Like the original OGD through-hole design, the SMD version uses dual fuse clips that accept either five x 20 mm or ¼ x one ¼" ...

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Surface mount fuse with high breaking capacity
21 September 2005, Retron
Schurter has extended its range of surface mount fuses with the USF 0603, the smallest fuse in the company's range to date. The USF 0603 thin-film fuse is only 1,6 mm long, 0,8 mm wide and 0,6 mm high. ...

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World's smallest chip common mode choke coil
21 September 2005
Murata claims its DLP0NS is the world's smallest chip common-mode choke coil for high-speed differential transmission line noise suppression. This product is smaller, thinner and lighter than the company's ...

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Block filters for single-phase applications up to 50 A
21 September 2005, Retron
Schurter has extended its filtered power entry modules with single-phase block filters. With this extension it supports customer requirements for power supplies from 0,5 A up to 50 A at 250 V and provides ...

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Global mobility - for sure: surge protection for mobile stations
24 August 2005, Phoenix Contact
Ref: z2816205m Due to their function, mobile stations are mostly arrayed in exposed locations. The third generation (3G) of mobile communication, such as UMTS or CDMA, is also therefore still at risk ...

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Alternate slot EMI/RFI shielding gaskets are stronger
24 August 2005
Tech-Etch has introduced three new EMI/RFI shielding, beryllium copper, alternate slot gaskets. Extending across the contact radius of these symmetrically profiled gaskets, the slots alternate from one ...

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Surface mount fuse link advances circuit protection
10 August 2005, Communica
An addition to Schurter's range of RoHS compliant products is the UMT 250 fuse link. According to the company, the UMT 250 offers the highest protection currently available in primary protection SM fuses, ...

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Integrated passive and active device in chip-scale
10 August 2005, Integrated Solutions, Financial (Industry)
Bourns' 2DAD-C5R device, manufactured using thin film on silicon technology, provides ESD protection for the external ports of portable electronic devices such as cellphones, modems and PDAs. The ESD ...

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0402 thermistor with enhanced response time
10 August 2005, Altron Arrow
AVX has designed NTC (negative temperature coefficient) thermistors specifically for temperature compensation and control applications in handheld and portable electronics equipment. The NB23 Series is ...

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Surface-mount EMI filters
27 July 2005, Electronic Industry Supplies
Spectrum Control offers a complete line of surface mount filter solutions for addressing EMI at the printed circuit board level. This line of surface mount inductors, low pass filters, high frequency ...

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High speed noise suppression
27 July 2005, Infrastructure, Government and Parastatal (Industry)
Picked up from internal clocks by transmission lines, and radiated by USB cables acting as transmitting antennas, the problems of radiated and conducted noise are well known. These problems are compounded ...

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EMC shielding solutions
27 July 2005, Rittal
Rittal offers a complete programme of shielding protection solutions for EMI/RFI. It offers an extensive line of standard sheet steel enclosures, special EMC-shielded enclosures, and EMC accessories. ...

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