Circuit & System Protection


Latest Articles

Surface mount fuse-link advances circuit protection
9 February 2005, Retron
The latest addition to Schurter's range of RoHS compliant products is the UMT 250 fuse-link, claimed to offer the highest protection currently available in primary protection SM fuses. It touts a breaking ...

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EMC filters
26 January 2005, Electrocomp
Epcos' EMC filters of series R105 now bear all major international seals of approval, such as UL1283, CSA 22.2 No. 8 1986 (cUL) and EN 133200. The filters are available for rated currents from 8 to 150 ...

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ESD protection diodes for portable and battery powered applications
17 November 2004
Royal Philips Electronics has introduced a series of single-line, bi-directional electro-static discharge (ESD) protection diodes designed to protect devices such as MP3 players and mobile phones from ...

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T1/E1 protection module
3 November 2004, ASIC Design Services, Integrated Solutions, Products & Solutions
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 that meets the requirements of GR1089 for lightning ...

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Miniaturised quad protection
3 November 2004, Electrocomp, Access Control & Identity Management
As a result of progressive miniaturisation of components, Epcos has been offering a multilayer varistor as a quad array with nickel barrier termination (three-layer silver/nickel/tin metallisation) in ...

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DC and AC single line feed-through filters
3 November 2004, Electronic Industry Supplies, Integrated Solutions
Spectrum Control now can offer DC and AC single line feed-through filters that have attained UL and Semko approval. These filters are current rated from 10-300 A and suitable for 0-400 Hz applications. ...

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Surge protection for higher speed LAN interfaces
3 November 2004, Phoenix Contact
The Datatrab D-LAN-CAT.5E surge voltage protector from Phoenix Contact is a surge voltage protection device designed for the interfaces of important data transfer systems such as Ethernet, Token Ring ...

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TV and satellite surge protector
3 November 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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Precision GDT surge protector for surface mount
3 November 2004
Bourns offers a 2-electrode GDT surge protection device for surface mounting. The industry-leading quality and features of the Bourns miniature 2035 Series GDT continue in this new SM version. Compatible ...

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Smaller sizes for microwave ceramic filters
3 November 2004, Electrocomp
The GPS filters B69812N1577B302 and B69812N1577D302 from Epcos are targeted at navigation systems in cars, ships, handheld devices and mobile phones. In comparison with previous filters, the company says ...

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Power inlet combines line-filter and circuit breaker
3 November 2004, Retron
Schurter's series EF11 power entry module combines an appliance inlet, according to IEC/EN 60320-1, and 2-pole circuit breaker for equipment. Unlike popular fused modules, the circuit breaker provides ...

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Snubber series for IGBTs
3 November 2004, Electrocomp
Epcos has considerably extended its line of snubber capacitors for IGBTs and now covers the voltage range from 850 to 2000 V d.c. and the capacitance range from 47 nF to 2,5 μF. The components are available ...

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Firewire-compliant hot-swap controllers
3 November 2004, CST Electronics, Electrocomp
Maxim has introduced what it claims are the industry's first fully integrated hot-swap controllers for IEEE1394 (FireWire) applications, allowing safe insertion and removal of IEEE1394 peripherals from ...

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EMI filter for 48 V power input
20 October 2004, Electronic Industry Supplies
The 48 V d.c. power input for telecommunications applications is the main target of Spectrum Control's newly developed series of EMI-filters. Complementing the company's existing comprehensive range of ...

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Lead-free fuseholder style circuit breaker
20 October 2004, Retron, Integrated Solutions, Government and Parastatal (Industry)
Fuseholder style circuit breakers are ideal substitutes for panel fuses where inrush currents cause nuisance trips, or ageing of the fusing element overtime. Resetting the circuit can avoid unnecessary ...

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BGA-packaged surface mount optocoupler has small footprint
22 September 2004, Altron Arrow
Said to be the first single-channel optocoupler with a transistor output, housed in a BGA (ball grid array) package, is available from Fairchild Semiconductor. The FODB100 microcoupler is designed for ...

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Copper beryllium fingerstock gaskets ease EMI problems
25 August 2004
For minimising electromagnetic interference (EMI) problems where enclosure doors, cabinets and boxes are concerned, Laird Technologies can supply copper beryllium fingerstock gaskets. These act as conductive ...

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High power transient suppressor replaces many diodes
11 August 2004, Altron Arrow
For more efficient electrical and electronic device protection against destructive higher power transient voltages, Littelfuse offers the AK series high current silicon transient suppressor. The AK series ...

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Photocouplers
14 July 2004
ECE's EPC series photocoupler features 3750 V input/output voltage isolation (2500 V isolation for SO-package). It has a low drive power requirement (TTL/CMOS compatible) and generates no EMI/RFI. High ...

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SST oscillators said to be a better solution to expensive EMI problems
14 July 2004, Altron Arrow
A new range of spread spectrum technology (SST) oscillators that can provide a low-cost means of reducing EMI radiation in electronic systems and are manufactured as drop-in replacements for standard ...

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