Circuit & System Protection


Latest Articles

DIN rail surge protector for telephone/data line
9 April 2003
Citel's DL module is designed to protect telephone and data lines. The surge protection function, based on a gas discharge tube/diode combination, is for one pair and is pluggable for fast and easy maintenance ...

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Battery protector
9 April 2003, Electrocomp
A snap-action thermal protector suitable for use on 120/240/277 V a.c. loads is available with a variety of bimetallic elements that vary the circuit breaker characteristics of the device. Ideal for use ...

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ISDN line protectors
9 April 2003, Surge Technology, News & Events
The Copa DPL10F range of line protectors from Surge Technology is designed for protecting 10-wire telephone lines, 10 Base-T, ISDN and 12-60 V signal lines. The devices provide 10 kA (8/20) protection ...

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Pluggable protective switch for terminal blocks
9 April 2003, Phoenix Contact, Security Services & Risk Management
The TCP thermal cut-out protector from Phoenix Contact combines the protective mechanism of a safety fuse with the advantages of an automatic cut-out, providing effective overload protection to electrical ...

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Quarter-wave protective devices
9 April 2003, News & Events
Citel's PRC protectors use 'quarter-wave' technology. The quarter-wave stub and other mechanical elements are carefully designed according to the operating frequency band to realise a band filter (narrowband ...

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Spark gaps
9 April 2003
Citel's spark gap SGP is designed to prevent earth potential differences between equipment and structures (metallic pylon, pipes) which are connected to different earthing products. In the event of lightning ...

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2,7 V ESD-protected RS232 transceivers
26 March 2003
The ADM3307E, ADM3310E, ADM3311E, ADM3312E and ADM3315E are a family of serial port transceivers designed to fully meet the EIA-232 standard while operating with a single +2,7 to 3,6 V power supply. These ...

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Remote-junction temperature switch protects CPUs, FPGAs and ASICs
12 March 2003, CST Electronics
Maxim's MAX6686 is a dual, remote-junction temperature switch that monitors high and low alarms and protects processors from overheating. The MAX6686 measures the temperature of a P-N junction in an ...

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Supply protection beyond surge suppression
12 March 2003
Although quality surge suppressors provide hardware protection from lightning and power spikes, they provide no protection for data, which is often more valuable than hardware. Data loss is frequently ...

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Monolithic device for protection of line cards against lightning and power surges
12 March 2003, Altron Arrow, Communica, Electrocomp
STMicroelectronics has introduced lightning protection IC for telecom equipment in a compact SO-8 package. The SSRP105B1 dual asymmetric transient voltage suppressor helps telecom equipment withstand ...

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Surface-mount fuses
12 March 2003, Retron
Schurter's product range of surface-mount fuses has been extended by the USF 0603, the smallest fuse in Schurter's range so far. The thin-film fuse USF 0603 is only 1,6 mm long, 0,8 mm wide and 0,6 ...

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SABS 0142-1 mandatory surge protection requirements set aside
12 March 2003
Following an appeal against the work of the SABS subcommittee SC 67F, lodged by C.P. Yelland and the Association of Municipal Electricity Undertakings of Southern Africa (AMEU) on 23 January, the mandatory ...

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USB connectors protect and filter
26 February 2003, Electronic Industry Supplies
Spectrum Control has introduced an ESD-protected and an EMI-filtered USB connector series. This introduction into ESD USB connectors includes the Type A family with right angle PCB mounting and are designed ...

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Device protects against high-frequency EMI for parallel ports
12 February 2003, MB Silicon Systems
California Micro Devices (CMD) has introduced the PACZIG1284, the first device to protect parallel ports against electro-magnetic interference (EMI) in PCs with frequencies from 100 MHz to 3 GHz. The ...

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SMT fuse for telecom applications
29 January 2003
Bel Fuse has released a surface mount, power cross protection fuse. Developed to ensure compliance with the Power Cross test requirements UL 1950/60950 and Bellcore/Telcordia GR-1089 for Tip and Ring ...

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Super-low resistance PPTC resettable fuses for battery pack protection
6 November 2002, Electrocomp
Bourns offers its next generation of Multifuse polymeric positive temperature coefficient (PPTC) strap components designed to enhance the safety and performance of rechargeable battery packs. This product ...

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Fibre-optic EMI adapters
23 October 2002
Molex has developed fibre-optic EMI shielding adapters to address mechanical designers requirements. They increase shielding effectiveness to greater than -50 dB at 4 GHz while enhancing front panel aesthetics ...

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Telecom fuses
9 October 2002, Electrocomp
Bourns has launched its Telecom Fuse Model B1250T, a powercross protection fuse designed for use in telecommunications circuit applications requiring low current protection with high surge tolerance. The ...

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19" panel for 100Base-T surge protection
25 September 2002
Citel's 19" panel is designed for the surge protection of multiline inputs of a Category 5-100Base-T network at the hub level. The maximum capacity is 24 channels with the PL24-CAT5/CL panel and 12 channels ...

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10Base-T/100Base-T surge protector
25 September 2002
Citel's ZS-CAT5/CL product line is designed to protect data-processing equipment from voltage surges carried on twisted pairs by a 10 or 100 Mbps Ethernet network (10Base-T or 100Base-T). These protectors ...

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