Circuit & System Protection


Latest Articles

Single bidirectional overvoltage protection for xDSL applications
12 July 2006, Electrocomp
Bourns' TISP4500H3BJ is a single bidirectional overvoltage protector developed for transformer-coupled xDSL applications. It can be used as a 2-wire (A-B) protector, or as one element in a 3-wire (A-B-C) ...

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Bi-directional I²C isolators said to be industry's first
12 July 2006
Analog Devices is introducing what it claims is the industry's first products to provide true bidirectional isolation for the I²C serial computer bus in industrial, networking and power supply applications. ...

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New PTC resettable fuses
12 July 2006, Electrocomp
Bourns has introduced a new 90 V Multifuse positive temperature coefficient (PTC) resettable fuse series that has been specifically designed to provide overcurrent protection in broadband cable telephony ...

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Dual pack suppression for DC motor EMI
12 July 2006, Electrocomp
Epcos has developed an innovative solution for EMI suppression in DC motors in motor vehicles. The company's new CombiSuppressor comprises a film capacitor and a multilayer ceramic varistor connected ...

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Multistage protection technology handles high datarates with ease
12 July 2006, Electrocomp
Bourns has designed its MSP Assembly to meet the challenges of tomorrow's high speed telecommunications circuits by combining the robustness of a heavy-duty gas discharge tube (GDT), with the responsiveness ...

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Gated unidirectional overvoltage and overcurrent protector
12 July 2006, Electrocomp
Bourns' TISP8250 is a telecommunications protector, designed for use in a variety of applications including: telephone handset/base station and SLIC protection in access or telecommunication centre equipment. This ...

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Small safety relay for equipment
28 June 2006
Wieland Electric has expanded its range of safety switching devices with the SNO 2004K. This safety switching device provides single-channel monitoring of safety sensors such as emergency stop buttons, ...

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Noise filters for power supply applications
31 May 2006, Sivan Electronic Supplies
Power supply maker Cosel, which entered the noise filter business last year, offers various types of noise filters. As industrial equipment is now being made lighter and smaller, with lower profiles and ...

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Multigate logic devices now have 5 kV ESD protection
31 May 2006
Royal Philips Electronics has announced that it now provides the broadest portfolio of advanced ultra-low power (AUP) logic products with 5 kV of electrostatic discharge (ESD) protection - this is twice ...

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Signal and power transfer across isolation barrier using micro-transformers: iCoupler products with isoPower technology
17 May 2006
Isolation between circuit components is typically required for safety and/or data integrity considerations. For example, isolation protects sensitive circuit components and human interface on the system ...

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Test adapters for lightning protectors
19 April 2006, Phoenix Contact
Phoenix Contact's Checkmaster can now be used to test all spark gaps in the company's Flashtrab compact range. The CM-PA-FLT/VAL-CP test adapter was specially-developed for this purpose. Its universal ...

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Innovative board-level EMI shields
22 March 2006, Connector & Wire Services
W.L. Gore & Associates offer an innovative multicavity shield that it claims solves many of the problems associated with today's existing shielding technologies. The company's ...

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A proven leader in reliable circuit protection solutions
22 March 2006, Altron Arrow
Littelfuse has been providing circuit protection solutions for over 75 years and boasts a large portfolio of circuit protection products. Customers can choose from GDTs, switching thyristors, TVS diode ...

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Total approach needed for effective lightning and surge protection
22 March 2006, Clearline Protection Systems
Effective lightning and surge protection requires a total approach says Warren Botten of Clearline, a Midrand-based lightning and surge protection company. "While some systems require special treatment ...

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EMI filter arrays with integrated ESD protection diodes
22 March 2006
Vishay has released six new EMI filter arrays with integrated ESD protection diodes. Offered in ultra-small leadless, plastic packages, the devices provide both EMI filtering and ESD protection for data ...

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Combination D-Sub connectors for up to 40 A
22 March 2006, Electronic Industry Supplies
Spectrum Control has expanded its product offering of filtered Combo-D-Sub connectors. The new range offers superior filtering capabilities with high insertion loss, provided by coaxial feed through capacitors, ...

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Silicon oscillator family also has protection functions
22 March 2006, CST Electronics, Electrocomp
Maxim has introduced a family of silicon oscillators that it says offers all the popular supervisory functions of medium-accuracy silicon oscillators in a single, surface-mount microMAX package. The ...

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All you ever wanted to know about ESD
22 March 2006
A free 36-page handbook that covers the causes of ESD (electro-static discharge), typical ESD events, how to achieve real-life reliability and reduce warranty costs, and the test methods used for proving ...

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So you thought lightning and surge protection is only relevant to mains powered systems?
22 March 2006
The availability and reliability required for bus systems, measuring and plant control, and IT systems in industry is very high. Manufacturing execution systems (MES) are part and parcel of the lifeblood ...

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On-chip capacitive digital isolators
22 March 2006, EBV Electrolink, Altron Arrow
Texas Instruments' ISO721 and ISO721M digital isolators have a logic input and output buffer separated by a silicon oxide (SiO2) insulation barrier. This barrier provides isolation of up to 560 V of operating ...

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