Circuit & System Protection


Latest Articles

Effects of corrosion on EMI gasket performance
14 July 2004
Corrosion is the natural oxidation of metal. Corrosion in metals (except the noble group) may appear in several distinct forms but corrosion is most prevalent in a salt water environment. Metals occur ...

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MLV with nickel barrier termination improves solderability
14 July 2004, Altron Arrow
Answering growing concerns about manufacturing yields for PCBs populated with increasingly smaller components, Littelfuse has introduced a nickel barrier termination option for its complete line of 0402 ...

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Hybrid choke eliminates two extra components
14 July 2004, Information Security, Products & Solutions
Murata developed a device to suppress conducted and radiated disturbance with using one component instead of the usual three. The company's hybrid choke coil (HCC) is both a common mode and a differential ...

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Selecting temperature sensors for system measurement and protection
14 July 2004, CST Electronics
A number of technologies are available for designers who need to measure temperature within a system. Thermistors, thermocouples, RTDs, and temperature sensor ICs each have advantages and disadvantages ...

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Micro-shock detector
14 July 2004
A highly sensitive shock sensor for protection of display cases, safes, equipment vibration, vending machine drop detection and a whole range of similar functions is available from Murata. The PKS1-4B1 ...

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Choke coils have low differential impedance
14 July 2004, Products & Solutions
With a volume of only 1,025 mm3, Murata's new common mode choke coils (CMCCs) for noise suppression in high-speed signal lines are said to be the smallest in the industry. As products get smaller and ...

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DC noise suppression block filters
14 July 2004
Noise suppression in high current DC lines is said to be easier with Murata's latest 15 A low DC resistance block filter. This filter is designed specifically for the suppression of noise in large screen ...

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Four-channel surge protection module
14 July 2004, Centurion Micro Electronics, Surveillance
Most factories today are facing increasingly complex wiring systems with high voltages. Interference from these high voltage wires can cause serious damage to control systems. The result of such a surge ...

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Dual temperature sensor and fan controller
14 July 2004, CST Electronics
Maxim's MAX6678 is a dual temperature sensor and fan controller that offers remote temperature sensing up to 145°C and automatic adjustment of two cooling fans to minimise noise and improve efficiency. ...

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Capacitors protect against mains overvoltages
30 June 2004
Wima now offers RFI capacitors with polypropylene dielectric in addition to the metallised paper series. The Wima MKP-X2 and Wima MKP-Y2 series are available with capacitance values from 1000 pF through ...

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World's densest solid-state coupler
30 June 2004, Products & Solutions
NVE has introduced a high-speed five-channel spintronic coupler. Using NVE's patented spintronic giant magnetoresistors (GMR) combined with CMOS circuitry, IsoLoop couplers in 3,8 mm by 10,2 mm 16-pin ...

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High-current fuseholder for board-mounting
16 June 2004, Retron, Products & Solutions
Schurter has developed a new PCB-mounting fuseholder approved for currents up to 16 A (VDE) or 20 A (UL). The FUP fuseholder has a 4 W power rating at 16 A and an ambient temperature of 23°C. The FUP ...

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Circuit protection avalanche diode line provides high power
2 June 2004, Altron Arrow, Access Control & Identity Management
Littelfuse offers an extensive line of transient voltage suppression (TVS) diodes designed to suppress over-voltage transients induced by EFT, inductive load switching and lightning for use in automotive, ...

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Filter series extended
2 June 2004, Electrocomp
EPCOS is widening its range of EMC filters. The tried and tested SIFI family has now been joined by the new SIFI-G types, which make up a cost optimised modular line of six series altogether. The enlarged ...

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Innovative bus-bar ferrite noise suppression products
19 May 2004, News
In industry, there are increasing needs to both improve performance and speed of electronic systems, as well as cut assembly costs. The requirements are doubly important for power transmission, IGBT ...

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Spike-suppression mains filters
5 May 2004, Electrocomp
Supprescraft spike-suppression filters are designed to protect sophisticated electronic and electrical equipment from the spikes and surges of current and voltage overloads and from noise, from the AC ...

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Reliable and safe - protection components: Part V
5 May 2004, Electrocomp
In this, the final article in the series on protection components, we note that Epcos offers not only the world's largest selection of EMC components, but also a full range of EMC services, including ...

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Power entry module with line filter rated to 3,5 kW
5 May 2004, Retron
The increasing requirements for power supplies of electronic systems require higher power density, better response and better performance. The C20F from Schurter is an IEC 320/C20 power entry module with ...

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High capacity GDT surge suppressors
21 April 2004, Altron Arrow
Littelfuse has introduced a proprietary family of gas plasma overvoltage protectors that it says provide significantly improved performance over traditional gas discharge tubes (GDT). Designed for use ...

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Reliable and safe - protection components: Part IV
21 April 2004, Electrocomp
In Part III we saw that PTC thermistors protect against overcurrent and excessive temperatures. In Part IV of this series from Epcos, one of the few varistor suppliers worldwide to offer the complete ...

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