Circuit & System Protection


Latest Articles

Surge arresters with pluggable 40 kA protection
8 May 2002, Surge Technology
Surge Technology's locally-manufactured DEHNguard-T lightning surge arresters are DIN-rail mounted and can withstand surge currents of up to 40 kA. The pluggable units consist of a base section which, ...

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Why not all transient voltage surge suppressors are the same
24 April 2002
Research indicates that up to 80% of voltage surges come from internal sources such as motors, fluorescent lights, photocopies and other switching devices

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Comparison of technologies used in surge protection devices
24 April 2002
The solutions employed to protect low voltage networks against transient overvoltages induced by lightning strikes - surge protection devices (SPDs) - are now widely spread. However, the choice between ...

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Lightning surge protectors
24 April 2002
A new lightning surge protector from Webb Industries has been introduced to protect sensitive equipment. The PolyPhaser DSX-D surge protector is designed to work from 0,8 to 2,2 GHz and is fully weatherised. ...

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Miniature multilayer varistors
24 April 2002
BCcomponents has extended its popular range of varistors when it launched the new smaller 0603 size multilayer varistor (MLV). This MLV is designed for surge suppression applications and electrostatic ...

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Dual element transient voltage suppressors
24 April 2002
Offering design engineers the ultimate in high density circuit protection, AVX introduced a dual-element 0405 MultiGuard multilayer ceramic TVS array. This line of surface mount chips offer the equivalent ...

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First lead-free resettable fuses in the industry
24 April 2002, Electrocomp
Bourns expanded its Multifuse product line with the release of a range of lead-free polymeric positive temperature coefficient (PPTC) battery strap devices designed for the protection of all types of ...

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Feedthrough caps for EMI suppression
24 April 2002
AVX manufactures a series of miniature ceramic chip components that combine capacitor and inductor elements in a single distributed constant circuit filter. Designated the W2H/W3H Series, these surface ...

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Internationally-approved fuses
24 April 2002, Actum
In its modern factory, using sophisticated, specially developed precision equipment, ELU produces fuses and fuseholders which conform to various DIN-SEMKO-VDE-UL and CSA specifications. ELU components ...

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Battery strap resettable fuses
24 April 2002, Electrocomp
Bourns is offering Multifuse polymeric positive temperature coefficient (PPTC) strap components designed to enhance the safety and performance of rechargeable battery packs. The Multifuse product line ...

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Tiny high-current beads
24 April 2002
Murata's 0603 sized ferrite beads can suppress noise on power supply lines in high performance digital equipment. As the number of peripherals that can be connected together by systems like USB increases, ...

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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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