Circuit & System Protection


Latest Articles

Lightning protection for office and domestic use
24 April 2002, Surge Technology
Surge Technology's locally designed and manufactured SurgeGuard range of lightning protectors are available in three types to protect computer networks, fax machines, video recorders, satellite decoders ...

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Cable, connectors and electromagnetic compatibility
24 April 2002
Wire and cable can often cause EMC problems that need to be considered early in the design phase. Here, Ron Brewer describes four fundamental design requirements to be followed to avoid EMC problems in ...

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High-current EMI filters
24 April 2002
New, high current and capacitance values has extended Murata's established family of three terminal chip capacitors, providing economic and effective EMI suppression. Already used widely in PCs, word ...

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D-sub high power filtered connectors
24 April 2002, Actum
The Erni D-sub high power series has been extended with the addition of two male and one female filtered connectors. All three connectors are equipped with a 47 nF capacitor. Both male connectors are ...

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Single-ended capacitors designed for tough applications
24 April 2002, Electrocomp
Although aluminium electrolytic capacitors historically rank among the oldest electronic components, they are being constantly developed to open up new applications and satisfy tougher requirements. Electronics ...

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EMI/RFI and ESD protected cable connector housings
10 April 2002, Actum
The Erni KSG200 cable connector housing is intended for use with the TMC series, D-Sub connectors to DIN 41612, MIL-C-24308 and IEC 807-3. It was designed to fulfil the high ESD requirements and to provide ...

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Thin, flexible EMI shielding tape
27 March 2002
Laird Technologies' High Flex II, EMI shielding tape product line is constructed of Flectron nickel/copper metallised ripstop or plain weave fabric with a pressure-sensitive adhesive (PSA). This tape ...

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Resettable fuses for 90 V operation
27 March 2002, Electrocomp
Bourns has added the 90 V family to its Multifuse product line - part numbers MF-R055/90, MF-R055/90U, and MF-R075/90U. The 90 V series was introduced to meet applications that need to handle up to 90 ...

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Open fuse holders now in blister tape
13 March 2002, Retron
For users of open SMD-fuse holders with 5 x 20 fuse links who would like to reduce the costly process steps when assembling, Schurter offers a solution by providing its existing OGN-SMD product now also ...

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High-speed digital isolators
27 February 2002
IsoLoop is the trademark name for NVE's family of isolation products. IsoLoop devices are created with giant magnetoresistive materials or GMR. When magnetic thin film layers separated by nonmagnetic ...

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Composite sealing gaskets for enclosures
27 February 2002
Laird Technologies' composite EcE/sponge profile gaskets are comprised of an electrically conductive elastomer bonded to a nonconductive silicone sponge. This gasket provides a cost-effective method for ...

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Cellular band quarter-wave arrestors
13 February 2002, Accutronics
Low-cost lightning protection is now available in Narda's coaxial T-junction that provides quarter-wave, short-circuit-to-ground for the branches. Model N53GK50700 rejects any signal outside the full ...

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Multilayer varistor in smaller 0603 size
7 November 2001, Electrocomp
BCcomponents has extended its range of varistors with the launch of the new smaller 0603 size multilayer varistor (MLV). This MLV is designed for surge suppression applications and electrostatic discharge ...

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Surge arrestors for surface mounting
7 November 2001, Electrocomp
Overvoltages are the greatest threat to sensitive electronic circuitry in telecom and datacom equipment. They can be caused by atmospheric discharges (lightning), inductive coupling from power lines, ...

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ESD protection for VGA circuits
7 November 2001, MB Silicon Systems
California Micro Devices' PAC VGA105, a new video graphics adapter (VGA) port protector, incorporates seven channels of electrostatic discharge (ESD) protection for signal lines commonly found in a VGA ...

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EMC filters get UL and CSA approval
10 October 2001, Electrocomp
The following Epcos filters are used in frequency converters and other power electronics applications. EMC filters of series B84143-B**-S20 (for 150 to 600 A, 480 V), B84143-B**-S21 (150 to 600 A, 760 ...

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Power supply units
10 October 2001, Sivan Electronic Supplies
Cosel's new ACE series power supplies have a flexible modular system architecture and provide various output configurations. With a universal input (85-264 V a.c.) they also include a harmonic attenuator ...

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Low profile hook-on EMI gaskets
10 October 2001
Laird Technologies' line of low profile beryllium copper shielding fingerstocks has simple installation accomplished by hooking one end of the gasket onto the edge of the housing. The other end is secure ...

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Lightning protectors for wireless local loop
12 September 2001
Two new lightning protectors for wireless local loop micro filter protection have been introduced by Webb Industries. The new PolyPhaser Micro LSX is for the 5,8 GHz ISM band and the new Micro PSX is ...

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Gas discharge tubes
12 September 2001
Gas discharge tube (GDT) products protect both human and property from lightning and transient voltage disturbances. GDTs have high surge currents and low capacitance ratings. Current ratings can be as ...

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